本资料来自于资源最齐全的２１世纪教育网www.21cnjy.com
Unit 3 Under the sea
课时作业(五) Warming Up & Reading
Ⅰ.单词拼写
1．His ________(一年的)income has been raised to 100 thousand yuan.
2．________(配合，协作)is very important in playing basketball.
3．What's the________(深度)of the lake
4．Why not________(暂停)to have a short rest
5．They decided to________(抛弃)the burning car and walked on.
6．There is a________(关系)between the moon and the tides.
7．The retired old ( http: / / www.21cnjy.com ) man devoted all his spare time to the wildlife________(保护)．
8．I've read lots of________(轶闻)of many great persons.
9．Guo Jingjing has a talent for________(跳水)．
10．We________(拖)the fallen trees out of the road.
Ⅱ.单项填空
1．They are having th ( http: / / www.21cnjy.com )eir________celebration of the beginning of a brand new year.
A．annual B．normal
C．common D．ordinary
2．They ________ the broken boat to the shore.
A．dragged B．drew
C．drafted D．drifted
3．The crowd let ( http: / / www.21cnjy.com )out a ________ of excitement when the popular star appeared on the stage.
A．smile B．yell
C．cough D．mock
4．(2013·遵义高二检测)—The earthquake last night was really terrible.
—Luckily，no people were injured or killed，and they________in time.
A．fled B．escaped
C．run D．run away
5．—Recent years have ________ rapid changes of my hometown.
—Yes，I could hardly recognize it when I arrived yesterday.
A．watched B．contributed
C．made D．witnessed
6．If you want to st ( http: / / www.21cnjy.com )op for a moment，just press the‘______’button on your tape recorder.
A．play B．thumb
C．violin D．pause
7．She tried calming ( http: / / www.21cnjy.com )him down but it seemed to be having the ________ effect.That's to say，he lost his temper.
A．cautious B．awful
C．vivid D．opposite
8．(2013·酒泉高二检测 ( http: / / www.21cnjy.com ))The lost car of Mr.Jones which was found________in the woods off the highway was still in good condition.
A．vanished B．abandoned
C．scattered D．rejected
9．—How can I use this washing machine
—Well，________the instructions first.
A．point to B．refer to
C．stick to D．lead to
10．On hearin ( http: / / www.21cnjy.com )g the earthquake，the teacher stayed calm in front of the blackboard，________all students to rush out of the classroom as quickly as possible.
A．encouraging B．hoping
C．demanding D．urging
11．Seeing a little g ( http: / / www.21cnjy.com )irl crying in the street，the policeman went up to ________.
A．help out B．pick out
C．send out D．try out
12．(2013·商丘高二月考)It ( http: / / www.21cnjy.com )________ years of practice to gain skill of an expert(专家)．21世纪教育网版权所有
A．costs B．spends
C．takes D．wastes
13．The Expo was hel ( http: / / www.21cnjy.com )d at a time ________ the world was looking for a new kind of balance between nature and cities.
A．which B．where
C．when D．that
14．The conference will begin in an hour.________，let's have a rest.
A．On the meantime B．In meantime
C．In the meantime D．In meanwhile
15．In some cases ( http: / / www.21cnjy.com )，different approaches ________ the same scientific problem lead to conflicting theories.21·世纪*教育网
A．to B．in
C．of D．for
Ⅲ.完形填空
(2013·江西高考)Di ( http: / / www.21cnjy.com )ane Ray was completely self centred and very spoilt. Her parents gave her__1__she wanted, knowing that she would throw a temper tantrum(耍小孩脾气) if they did not. She would scream and kick and__2__on the floor drumming her heels. Her parents always__3__.【版权所有：21教育】
That was why she ( http: / / www.21cnjy.com )was alone on the__4__， wearing an expensive swimsuit. It had taken a massive tantrum to__5__her parents to buy it. They were back at the beach house，__6__from the tantrum she had thrown when they told her that it was too dangerous to go diving__7__. “Dangerous？” she had said. “You just don't want me to have__8__. I'm going and if you try to stop me，I'll scream.”
“What are you ( http: / / www.21cnjy.com )doing？”a voice asked. Diane jumped. She did not know that the man was there__9__he spoke.21cnjy.com
“I'm going diving，”she answered.
“You shouldn't swim ( http: / / www.21cnjy.com ) today，”the man__10__. “There is a storm coming up.”
“You should mind your ( http: / / www.21cnjy.com ) own__11__！”Diane replied and walked into the gentle waves.www-2-1-cnjy-com
“If you go o ( http: / / www.21cnjy.com )ut there you'll be__12__，”the man called after her. She did not bother to reply.
Diane slipped into the ( http: / / www.21cnjy.com ) water and dived__13__until white caps began rolling in and it became harder to__14__against the current(水流). Saltwater hit against her face, making it__15__to breathe. Oh，why had she not listened to advice
Panicking, she ( http: / / www.21cnjy.com )began to__16__. Then, just as it seemed as if she would slip beneath the surface, she heard a__17__voice. “Hold on! I'm coming.” With__18__，she saw the old man rowing an ancient looking boat towards her. “I hope you've learned a lesson. You put us both in__19__，”he shouted angrily, as he dragged her over the side of the__20__. Gratefully, Diane thanked him and ran towards the beach house.
1．A.either B．neither
C．nothing D．everything
2．A.jump B．lie
C．spin D．sleep
3．A.set out B．set in
C．gave in D．gave out
4．A.beach B．bed
C．floor D．ship
5．A.allow B．warn
C．get D．prefer
6．A.changing B．recovering
C．appearing D．traveling
7．A.alone B．away
C．again D．aside
8．A.time B．money
C．food D．fun
9．A.when B．until
C．after D．once
10．A.decided B．intended
C．advised D．repeated
11．A.business B．swimsuit
C．friends D．parents
12．A.angry B．sorry
C．confused D．excited
13．A.nervously B．sadly
C．shyly D．happily
14．A.rise B．swim
C．stop D．row
15．A.difficult B．easy
C．comfortable D．suitable
16．A.speak B．sing
C．sniff D．scream
17．A.calm B．frightening
C．beautiful D．disgusting
18．A.regret B．relief
C．interest D．ease
19．A.power B．safety
C．danger D．thought
20．A.house B．wave
C．beach D．boat
Ⅳ.阅读理解
Dozens of dolphins s ( http: / / www.21cnjy.com )wam out of the polluted waters of Haifa harbor on Tuesday.This was the first time that dolphins had visited this crowded Mediterranean port，and researchers were surprised and delighted by the unexpected event.
Between 40 and 5 ( http: / / www.21cnjy.com )0 of the dolphins appeared in the busy port on Tuesday morning，obviously drawn by the fish rich waters of Haifa Bay.
However, the ( http: / / www.21cnjy.com )bay is also full of harmful chemicals.Aviad Sheinin，professor of Haifa University's Maritime Studies Department, said he didn't think the dolphins were harmed by the pollution, but that he hoped they would swim back to sea soon.“It seems that they are quite relaxed.They don't seem to be stressed，”he said.
Haifa Bay is lined ( http: / / www.21cnjy.com ) by chemical companies that have been pouring poisonous waste into the water for decades.While pollution levels have dropped in recent years, the water is still considered a health hazard(隐患)．21教育网
“There are lot ( http: / / www.21cnjy.com )s of fish in Haifa port.Unfortunately we couldn't tell the dolphins that the fish are not healthy，and I don't know what the result will be，”he told Israel Army Radio.www.21-cn-jy.com
Hundreds of Haifa res ( http: / / www.21cnjy.com )idents gathered around Haifa Bay to see the interesting sight，and researchers said this provided a rare chance to film and study the rough toothed dolphins.In addition to the dozens of dolphins which swam into the port on Tuesday，a similar number stayed outside the breakwater (防波堤)．Later Tuesday the dolphins left the port but remained near the entrance and Israel's coast guard was patrolling (巡逻) the area to try to make sure the dolphins didn't re enter the poisonous waters.2-1-c-n-j-y
Relatively lit ( http: / / www.21cnjy.com )tle is known about rough toothed dolphins, which are usually found in deep and warm tropical waters.【出处：21教育名师】
1．Haifa Bay is ( http: / / www.21cnjy.com )full of harmful chemicals which are caused by ________.
A．unhealthy fish B．ships
C．chemical companies D．residents living nearby
2．Aviad Sheinin's words suggest ________.
A．he was curious about the dolphins
B．the dolphins might affect the existence of fish in Haifa port
C．he would research on the dolphins
D．he would be uncertain about what will happen to the dolphins
3．When learning th ( http: / / www.21cnjy.com )e dolphins entered Haifa port，hundreds of Haifa residents ________.21*cnjy*com
A．were curious
B．felt upset
C．went to drive them away
D．were shocked
4．This passage mainly tells us that ________.
A．dolphins are well protected in Israel
B．Haifa Bay is full of harmful chemicals
C．dolphins made a surprise visit to the polluted harbor
D．people love dolphins
Ⅴ.翻译句子
1．他们承诺当我遇到困难时帮我脱离困境。(help)
______________________________________________________________
2．船员们纵情饮酒。(abandon)
______________________________________________________________
3．我们就要停业时，银行为我们救了急。(close)
______________________________________________________________
4．完成这项工作花费了他三年的时间。(finish)
______________________________________________________________
5．警铃响起，顾客们纷纷从银行逃离。(flee)
______________________________________________________________
课时作业(五)
Ⅰ.1.annual 2.Tea ( http: / / www.21cnjy.com )mwork 3.depth 4.pause 5.abandon 6.relationship 7.conservation【来源：21·世纪·教育·网】
8．anecdotes 9.diving 10.dragged
Ⅱ.1.A 句意：他们正在对崭新的一年的开始进行一年一度的庆祝。annual“每年的，一年一度的”，符合句意。 21*cnjy*com
2．A 句意：他们把那艘坏了的船拖向岸边。“拖拉重物”应用drag。draw表示拖拉较轻的物体。
3．B 句意：当这个受欢迎的明星出现在舞台上时，人群中发出激动的喊叫声。yell喊叫，符合句意。
4．B 句意：——昨晚上的地震太可怕了。— ( http: / / www.21cnjy.com )—幸运的是，没有人员伤亡，他们都及时地逃了出来。flee强调逃跑行为本身，含有“逃走，消散”的意思。escape强调逃跑的结果，即成功地跑掉了。run away多用于口语，有“不辞而别”的意思。21·cn·jy·com
5．D 句意：——近几年已见证了我 ( http: / / www.21cnjy.com )家乡的巨大变化。——是的，当我昨天到达的时候我几乎认不出来了。contribute捐献，贡献；witness目击，见证。由句意可知选D。21教育名师原创作品
6．D 句意：如果你想停一会儿，就按一 ( http: / / www.21cnjy.com )下你录音机上的暂停键。play演奏，放；thumb拇指；violin小提琴；pause暂停。结合句意可知选D。
7．D 句意：她尝试使他平静下来 ( http: / / www.21cnjy.com )，但看上去却起到了相反的结果，也就是说，他发脾气了。cautious小心的；awful可怕的；vivid形象生动的；opposite相反的。根据句意可知选D。
8．B 句意：琼斯先生丢失的汽车被人 ( http: / / www.21cnjy.com )发现了，它被丢弃在公路旁边的树林中，状况良好。abandon“丢弃”，符合句意；scatter“分散”；reject“拒绝”；vanish“消失”均不合句意。【来源：21cnj*y.co*m】
9．B 考查短语辨析。re ( http: / / www.21cnjy.com )fer to意为“参考，查阅”。point to 意为“指向”；stick to意为“坚持”；lead to意为“导致”。句意：——我该如何使用这台洗衣机？——首先看说明书吧。
10．D 句意：听到地震来了，老师镇定地站在 ( http: / / www.21cnjy.com )黑板的前面，催促所有的学生尽快地冲出教室。encourage“鼓舞，鼓励”；hope和demand没有紧跟sb.to do的形式；urge sb.to do sth.“催促/怂恿某人做某事”，符合句意。
11．A 句意：看见一个小女孩在街道上 ( http: / / www.21cnjy.com )哭，那位警察走上前帮助她。help out帮助解决难题；pick out挑出，辨别；send out发送；try out试验。根据句意可知“警察走上前帮助”，因此选A。
12．C it takes some time to do sth.为固定句型。
13．C 句意：世博会是在世界正在寻找城市 ( http: / / www.21cnjy.com )与自然之间的一种新的平衡时举行的。when引导定语从句修饰time，从句中缺少时间状语，故用when引导。
14．C 句意：会议还有一个小时才开始，在此期间我们休息一会吧。in the meantime与此同时，在此期间。2·1·c·n·j·y
15．A 句意：在有些情况下，对同一个科学问题的不同方法会导致相冲突的理论。approach to...的方法，途径。
Ⅲ.【语篇解读】 本文主要介绍了一个任性的女 ( http: / / www.21cnjy.com )孩，她总是喜欢一意孤行。在一个有暴风雨的日子她不听老人的劝告，执意要去潜水，结果遭遇了危险，好在有老人相救，女孩最终脱离了危险。
1．D 由第一句可知Diane Ray非常自私且被宠坏了，因此可推断她的父母应该是给她“一切”她想要的东西。
2．B 设空所在句的句意为“她就会尖叫、踢打并躺在地上蹬腿跺脚”。故选B项，其余三项不合题意。
3．C 设空所在句的句意为“她的父母总是屈服”。由前文可知她总是发脾气，因此她父母只好屈服。give in意为“屈服”，符合语境。
4．A 设空所在句的句意为“那就是为什么她穿着昂贵的游泳衣，独自在沙滩上”。此题关键在于对该空后面的对应词swimsuit的理解。
5．C 设空所在句的句意为“她耍了一个 ( http: / / www.21cnjy.com )大脾气让父母去买它(游泳衣)”。allow允许；warn警告；get使得；prefer更喜欢。故C项符合语境。
6．B 设空所在句的句意 ( http: / / www.21cnjy.com )为“他们(父母)回到海滩房，从她耍脾气中恢复好情绪时，他们告诉她……”。与上下文联系起来可知，父母“恢复”好情绪才能劝说她。故选B。
7．A 设空所在句的句意为“……独自去潜水太危险了”。由本段第一句中“...why she was alone...”可知答案为A。
8．D 设空所在句的句意为“你们只是不想让我玩得高兴”。have fun意为“玩得高兴”，故选D。
9．B 设空所在句的句意为“直到他说话 ( http: / / www.21cnjy.com )，她才知道有个人在那儿”。由句意可知选B，not...until...意为“直到……才……”，符合语境。
10．C 老人所说的“你今天 ( http: / / www.21cnjy.com )不应该游泳”是建议，从倒数第二段最后一句话“Oh，why had she not listened to advice？”也可得出正确答案。
11．A 由前文所讲的她的性格可知，她应该是说“你少管闲事”。mind one's own business意为“少管闲事”，符合语境。
12．B 设空所在句的句意为“‘如果你去那儿，你会后悔的’，那个人在她后面喊”。sorry意为“后悔的”，符合语境。
13．D 设空所在句的句意为“Diane滑进水里，开心地潜水……”。happily意为“开心地”，符合语境。
14．B 由上文中“白浪开始卷入”可知“逆着水流游泳已经变得比较困难了”。
15．A 设空所在句的句意为“海水打在她的脸上，让她难以呼吸”。根据常识可知正确答案是A项。
16．D 设空所在句的句意为“惊慌中，她开始尖叫”。由前后文可知，她遭遇了危险，应该会大声尖叫。
17．A 设空所在句的句 ( http: / / www.21cnjy.com )意为“……她听到一个平静的声音”。由前文可知，老人知道她去游泳了，从后文可知他准备好了船来救她，并且他说希望她已经得到一个教训了，因此老人是有备而来，此刻的声音应该是平静的。
18．B 有人来相救，应该是感到宽慰。relief意为“宽慰，轻松”，符合语境。注意ease意为“轻松，舒适”，不符合语境。
19．C 在有风暴的日子来到海上，应该是危险的。
20．D 由前文提到的老人划船来救她可知，此处应该是把她拖到船的一边。
Ⅳ.1.C 细节理解题。由第四段第一句可知这些有害的化学物质是化工厂排放到水中去的。
2．D 推理判断题。由第三段第二句“...he didn't think...but that he hoped...”可推知。
3．A 细节理解题。由倒 ( http: / / www.21cnjy.com )数第二段首句“Hundreds of Haifa residents gathered around Haifa Bay to see...”可知当地的居民们很好奇，都跑去观看。
4．C 主旨大意题。本文第一段为事件的总述，由此段可知本文主要说一群海豚出乎意料地游到了被污染的水域，然后又游了出来。
Ⅴ.1.They promised to h ( http: / / www.21cnjy.com )elp me out when I was in trouble. 2.The sailors abandoned themselves to drinking. 3.When we were about to close down the business，the bank came to our rescue. 4.It took him three years to finish the work. 5.The customers fled from the bank when the alarm sounded.
21世纪教育网 -- 中国最大型、最专业的中小学教育资源门户网站。 版权所有@21世纪教育网本资料来自于资源最齐全的２１世纪教育网www.21cnjy.com
课时作业(六) Using Language
Ⅰ.单词拼写
1．He looked at the trees ________(反射)in the lake.
2．We were not ________(认识到的)that it was getting dark.
3．I was almost ________(害怕)to death when he told me there was a snake in my sleeping bag.
4．The wolf stared at me with its ________(锐利的)bright eyes.
5．She wanted to reverse the ________(潮流)of Socialism.
6．Design requ ( http: / / www.21cnjy.com )ires a ________(目标)－the audience upon whom the design is focused.
7．There is a ________(狭窄的)winding street between the houses.
8．What I am saying is ________(单纯地)my own point of view.
9．The novel paints a ________(栩栩如生的)picture of life in the city.
10．A ________(分界线)is a line that marks a limit between two countries.
Ⅱ.单项填空
1．They gazed at the stars ________ in the lake.
A．reflect B．reflecting
C．reflected D．reflects
2．(2013·盐池高二质检) ( http: / / www.21cnjy.com )With no one ________ him，the cook slipped out of the kitchen.【版权所有：21教育】
A．is noticing B．noticing
C．noticed D．being noticed
3．He is quit ( http: / / www.21cnjy.com )e ________ of the risk，but he has no choice but to go ahead.
A．sure B．ashamed
C．fond D．aware
4．The fans gave a(n)________description of the first match of the World Cup as if they were footballers.【来源：21cnj*y.co*m】
A．creative B．fantastic
C．imaginative D．vivid
5．Don't hold the bottle________to keep the water from dripping.
A．upright B．upside down
C．inside out D．upward
6．(2013·天水高二检测)Y ( http: / / www.21cnjy.com )ou should make it a rule to leave things ________ you can find them again.
A．when B．where
C．then D．which
7．It is very ________ of you to notice that detail straight away.
A．sharp B．sharply
C．nervous D．quick
8．The sun ________，they continued their way.
A．has risen B．having risen
C．have raised D．having raised
9．Seeing the ________ flood，she was ________ to take the boat.
A．scary；scary B．scaring；scared
C．scary；scared D．scared；scary
10．(2013·许昌高二检测)___ ( http: / / www.21cnjy.com )_____ seems to have been a strong competition in China for school leavers to enter college or university.21世纪教育网版权所有
A．There B．That
C．It D．Here
Ⅲ.阅读理解
A
There are eight ( http: / / www.21cnjy.com )species of dolphins in Hawaii.The bottle nosed dolphin is the most common type of dolphin.This name came from its longer upper and lower jaws.This dolphin is a very loving and friendly animal.There are cases of dolphins that rescue injured divers in the ocean.21cnjy.com
In Hawaii，you can ( http: / / www.21cnjy.com ) experience swimming with dolphins.There are several companies on Oahu and the Big Island that offer a swim with these animals in the wild.These kinds of tours usually are combined with water sports such as snorkel(水下呼吸管)or scuba diving.www.21-cn-jy.com
Dolphins are protec ( http: / / www.21cnjy.com )ted by the Marine Mammal Protection Act and it is against the law to become closer than 50 yards(45 m)to them.But these friendly animals can approach to check you out.You have to consider that if dolphins prefer to keep away，you should not try to swim close to them.If dolphins come close while you are swimming in the ocean，don't attempt to touch them and don't make aggressive or sudden movements.21·世纪*教育网
At the Sea Life Pa ( http: / / www.21cnjy.com )rk on Oahu，they have special dolphin programs that allow you to swim and hug dolphins；besides，you'll learn about these mammals' habits.The Dolphin Quest program will explain to you why dolphins are considered one of the most intelligent creatures.2-1-c-n-j-y
Swimming with d ( http: / / www.21cnjy.com )olphins is one of the most attractive activities if you come to Hawaii.But Hawaii's underwater world is amazing and has many other species to watch：Humpback whales，Green sea turtles，Monk seals and so on.While you get in touch with this underworld，always have in mind the main rule of the ocean respect：Look but don't touch.
1．What's the main idea of Paragraph 1
A．Dolphins in Hawaii have long bottle noses.
B．Dolphins in Hawaii love friends.
C．Dolphins in Hawaii always save the divers.
D．Dolphins in Hawaii are explained in brief.
2．According to ( http: / / www.21cnjy.com ) the Marine Mammal Protection Act，when you swim in the ocean you ________. 21*cnjy*com
A．have to follow the dolphins
B．must stay close to the dolphins
C．should keep a distance from the dolphins
D．can't move with the dolphins
3．If you want to know something about dolphins' life，you can________.
A．travel to the Big Island now and then
B．obey the Marine Mammal Protection Act
C．turn to the dolphin programs at the Sea Life Park21教育名师原创作品
D．live with the dolphins for a long time on Oahu
4．When traveling arou ( http: / / www.21cnjy.com )nd Hawaii's underwater world，you can do all of the following EXCEPT________.
A．swim with dolphins
B．have a hug with dolphins
C．watch other animals besides dolphins
D．touch every animal
B
The water cycle sound ( http: / / www.21cnjy.com )s like describing how water move above, on, and through the earth.But in fact, much more water is“in storage”for long periods of time than is actually moving through the cycle.The storehouses for the vast majority of all water on the earth are the oceans, and the oceans supply about 90 percent of the evaporated (蒸发的) water that goes into the water cycle.21·cn·jy·com
Of course, nothing ( http: / / www.21cnjy.com ) involving the water cycle is really permanent，even the amount of water in the oceans.Over the“short term”of hundreds of years, the oceans' volumes (总量) don't change much.But the amount of water in the oceans does change over the long term.For instance, just 1,000 years ago when William of Normandy invaded England，he landed near Hastings, which, though a few miles inland today, was then a coastal town.And a few thousand years ago humans crossed to North America from Asia at the (now underwater) Bering Strait.
During colder ( http: / / www.21cnjy.com )climatic periods, more ice caps and glaciers (冰川) form and enough of the global water supply gathers as ice to reduce the amounts in other parts of the water cycle.The reverse (相反的情况) happens during warm periods.During the last ice age, glaciers covered almost one third of the earth's land mass, with the result that the ocean levels were about 400 feet lower than today.
Of course th ( http: / / www.21cnjy.com )e oceans are always in movement.The moon influences daily tides, which make the beach a more interesting place to visit.If you have ever been seasick, then you know how the ocean is never still.You might think that the water in the oceans moves around because of waves，which are driven by winds.But, actually, there are currents and“rivers”in the oceans that move massive amounts of water around the world.
5．Most of the water on the earth is stored in ________.
A．the ice caps and glaciers
B．the oceans
C．the groundwater
D．the atmosphere
6．The author mentions William of Normandy to show ________.
A．the permanent water cycle
B．the difference of Hastings' location
C．the changes in the amount of water in the oceans
D．the influence the oceans have on water cycle
7．According to Paragraph 3，what happens in warm periods
A．The ocean levels are lower than those during colder seasons.
B．One third of the earth is covered by glaciers.
C．The global water supply is not enough.
D．More water joins the water cycle.
8．The water in the oceans moves mainly because of ________.
A．waves driven by winds
B．the influence of the moon
C．currents and“rivers”in the oceans
D．the water cycle of the earth
Ⅳ.翻译句子
1．那孩子似乎被狂风暴雨吓得要命。(It seems)
______________________________________________________________
2．他低着头走进教室。(独立主格)
______________________________________________________________
3．托尼似乎非常肤浅，他根本没有意识到这些潜在危险。(become aware of)
______________________________________________________________
4．在你刚经过的地方有一幅画被挂颠倒了。(upside down)
______________________________________________________________
5．那位女士被这恐怖的声音吓得要死。(scare)
______________________________________________________________
课时作业(六)
Ⅰ.1.reflected 2.aware 3.scared 4.sharp 5.tide
6．target 7.narrow 8.purely 9.vivid
10．boundary
Ⅱ.1.C 句意：他们注视着倒映在湖水中的星星。star和reflect之间是被动关系，故用过去分词。reflect“映出；反射”。21教育网
2．B 考查with的复合结构。句意：没有人注意到那个厨师溜出了厨房。no one和notice为主谓关系，故用动词 ing形式。2·1·c·n·j·y
3．D 句意：他完全意识 ( http: / / www.21cnjy.com )到了危险，但他别无选择只能前进。be sure of确信；be ashamed of对……感到羞愧；be fond of喜欢；be aware of意识到。根据句意应选D。【来源：21·世纪·教育·网】
4．D 句意：球迷生动描述了世界杯的揭幕战 ( http: / / www.21cnjy.com )，他们好像就是其中的队员。creative创造性的；fantastic极好的，奇异的；imaginative想象力丰富的；vivid形象的，生动的。只有D项符合句意。【出处：21教育名师】
5．B 句意：不要把瓶子弄倒了，以确保水不漏掉。upside down“上下翻转，颠倒”，符合句意。21*cnjy*com
6．B 句意：你应该养成习惯，把东西放在你还能找到的地方。where引导地点状语从句。
7．A sharp“灵敏的，敏锐的”；nervous“紧张不安的”；quick“迅速的，快的”。
8．B 句意：太阳升起来了，他们继续赶路。 ( http: / / www.21cnjy.com )分析句子结构可知“The sun ________”为独立主格结构，应用非谓语动词，故A、C两项错误，rise为不及物动词，raise为及物动词，the sun与rise之间为主谓关系，故选B。
9．B 句意：一看见令人害怕的洪水，她就吓得不敢乘船。scaring令人害怕的；scared感到害怕的。
10．A 句意：在中国，高中毕业生上大学好像一直有很强的竞争。There seems to...好像有……，为固定句式，故选A。www-2-1-cnjy-com
Ⅲ.1.D 主旨大意题。第一段简单地介绍了夏威夷海域里海豚的情况。
2．C 细节理解题。由第三段第一句可知，人们要与海豚保持一定的距离，否则就触犯了法律。
3．C 细节理解题。由第四段可知，从这些节目中可以了解海豚的生活习性。
4．D 推理判断题。由文章最后一句可知，在夏威夷海底世界有些动物不能触摸。
【语篇解读】 地球被称之为“水球”，因为地球极大部分地区被海洋覆盖着。你了解海洋与全球水循环的关系吗？
5．B 细节理解题。根据文章第一 ( http: / / www.21cnjy.com )段中The storehouses for the vast majority of all water on the earth are the oceans可知B项正确。
6．C 细节理解题。根据文章第二段中．.. ( http: / / www.21cnjy.com )the amount of water in the oceans does change over the long term可知，作者拿William of Normandy来举例就是为了说明这一点。
7．D 推理判断题。根据文章第三段中Th ( http: / / www.21cnjy.com )e reverse happens during warm periods可推断出，天气变暖后，冰雪融化，就有更多的水加入全球水循环。
8．C 细节理解题。根据文章第四段中． ( http: / / www.21cnjy.com )..there are currents and“rivers”in the oceans that move massive amounts of water around the world可知C项正确。
Ⅳ.1.It seemed that th ( http: / / www.21cnjy.com )e child was frightened to death by the violent thunderstorm. 2.He walked into the classroom，his head lowered. 3.Tony seemed very shallow and he didn't become aware of the potential dangers. 4.A painting was hung upside down where you just passed by. 5.The woman was scared to death by the horrible sound.
21世纪教育网 -- 中国最大型、最专业的中小学教育资源门户网站。 版权所有@21世纪教育网本资料来自于资源最齐全的２１世纪教育网www.21cnjy.com
综合检测(三)
Unit 3 Under the sea
(时间：100分钟；满分：120分)
Ⅰ.单项填空(共15小题；每小题1分，满分15分)
1．(2013·商丘高二检测)Usual ( http: / / www.21cnjy.com )ly a child's behavior is a________of his family environment.
A．recognition B．reflection
C．return D．record
2．The living room is ( http: / / www.21cnjy.com )clean and tidy，with a dining table already________for a meal to be cooked.
A．laid B．laying
C．to lay D．being laid
3．(2013·凯里高二月考)They u ( http: / / www.21cnjy.com )rged that the library________during the vacation.
A．would be kept opening B．be kept open
C．to be kept opened D．was kept open
4．(2013·敦煌高二质 ( http: / / www.21cnjy.com )检)She was scared ________ on the horse when she was young.
A．to ride B．riding
C．of being ridden D．rode
5．Playing with a ce ( http: / / www.21cnjy.com )llphone，he suddenly ________ the teacher staring at him.
A．knew of B．became aware of
C．reflected D．aware for
6．My nephew is so ( http: / / www.21cnjy.com ) naughty that he often hangs from the little tree ________ and swings back and forth.
A．up to
B．the upsides and downsides
C．upside down
D．down and out
7．I wish you'd do ______ talking and some more work.
Thus things will become better.
A．a bit less B．any less
C．much more D．a little more
8．More than $10 m ( http: / / www.21cnjy.com )illion in research costs has been lost on a(n)________nuclear safety program. 21*cnjy*com
A．abandoned B．removed
C．consumed D．polished
9．Opening the window，w ( http: / / www.21cnjy.com )e saw a high mountain____us going up into the sky，just like a skyscraper.
A．across B．against
C．opposite D．through
10．Most of us ( http: / / www.21cnjy.com )________our manned spaceship floating in space on TV，which inspired us greatly.
A．sought B．witnessed
C．undertook D．glanced
11．His fatal ( http: / / www.21cnjy.com ) mistake has become the________，for which his team lost the chance to reach the last 16 in the World Cup.
A．example B．handle
C．face D．target
12．The ________CCTV ( http: / / www.21cnjy.com ) Spring Festival Gala not only gives us much pleasure，but also brings about some superstars，like Xiao Shenyang.2-1-c-n-j-y
A．every B．each
C．one D．annual
13．It's not good ma ( http: / / www.21cnjy.com )nners for a woman to speak almost without________for breath；it's necessary to listen to others' opinion.
A．pausing B．standing
C．predicting D．opposing
14．He ________ that country for political reasons；however，the plane crashed on the way.
A．escaped B．fled
C．ran away D．flee from
15．He，out of breath， ( http: / / www.21cnjy.com )________ himself along the street.Perhaps he was badly ill.
A．drew B．pulled
C．dragged D．pushed
Ⅱ.完形填空(共20小题；每小题1.5分，满分30分)
We had the opportu ( http: / / www.21cnjy.com )nity to come to London again this year.I was coming for a __16__ and Jenny was coming to enjoy some sightseeing.My conference was during the week，so we had the weekend __17__.We decided this year to rent a car and __18__ out of London.This was probably one of our best __19__ yet，inspired in no small part by Jenny's cousin Rebecca，who recently __20__ to the United States after spending almost a year in the UK.
On Saturday，we set ( http: / / www.21cnjy.com )out as soon as we could hire the car __21__ the south of Wales.We were heading towards Raglan Castle and Tintern Abbey.Jenny and I studied the __22__ we were headed for.We fully planned to use the main motorways only to __23__ time，and to get onto the more local roads __24__ we could spend some time looking at the villages and towns along the way.
We decided to h ( http: / / www.21cnjy.com )ead __25__ for Tintern Abbey.We got a little lost when trying to find one of the more local roads.We __26__ heading south a little more west than we had __27__.Following the map，Jenny identified a different __28__ that would take us to the abbey.We __29__ there around 15∶30.It was a spectacular view and we were there until closing time at 17∶00.
At that __30__ we r ( http: / / www.21cnjy.com )ealized that we had not __31__ anything all day.We were having too much of a good time，and had __32__ about food.Earlier in the day，when we were buying the map，we bought a diet coke to drink in the car.That's __33__ we had had all day.Realizing this，and that we were getting a bit __34__，we stopped for food.Then we started our journey __35__ to London and finally returned safely to our hotel.
16．A.party B．meeting
C．discussion D．report
17．A.free B．busy
C．interesting D．boring
18．A.escape B．walk
C．drive D．draw
19．A.holidays B．jobs
C．suggestions D．ideas
20．A.belonged B．returned
C．hurried D．sent
21．A.for B．along
C．in D．around
22．A.ocean B．country
C．school D．area
23．A.take B．change
C．save D．kill
24．A.despite B．so that
C．unless D．even if
25．A.actually B．suddenly
C．firstly D．immediately
26．A.kept on B．thought of
C．stuck in D．ended up
27．A.found B．intended
C．expected D．learnt
28．A.path B．voice
C．situation D．sight
29．A.gathered B．left
C．found D．arrived
30．A.cost B．rate
C．point D．sight
31．A.eaten B．enjoyed
C．cooked D．prepared
32．A.worried B．complained
C．forgotten D．talked
33．A.when B．where
C．why D．what
34．A.excited B．curious
C．tired D．angry
35．A.back B．forward
C．up D．down
Ⅲ.阅读理解(共15小题；每小题2分，满分30分)
A
Ears are for hearin ( http: / / www.21cnjy.com )g－everyone knows that.But for a creature called the Cuvier's beaked whale, hearing starts in the throat, a new study found.
The observatio ( http: / / www.21cnjy.com )n might help explain how all whales hear.The work might also help scientists understand how animals are affected by underwater sonar (声呐)．This sonar，used by some ships，sends out sound waves to locate underwater objects.
The Cuvier's beaked ( http: / / www.21cnjy.com ) whale is a so called toothed whale.Toothed whales dive deep into the ocean in search of food.As the whales hunt, they produce sounds that reach objects and then return to the whales.This allows the animals to“see”the shape, size, and location of objects，even when they're 1,000 meters under the sea, where it is totally dark.21世纪教育网版权所有
To better underst ( http: / / www.21cnjy.com )and how the whale hears，researchers from San Diego State University in California took X rays of two Cuvier's beaked whales.The whales had died and washed up on the beach.
The Cranford and his ( http: / / www.21cnjy.com ) colleagues used the images to make a computer model of a Cuvier's beaked whale's head.Then, they modeled the process of sound traveling through the head.
The researchers knew t ( http: / / www.21cnjy.com )hat some sounds get to the ears of a toothed whale through a structure called“the window for sound”．Found on the lower jaw, this structure is very thin on the outside and has a large pad(垫) of fat on the inside.
When the researche ( http: / / www.21cnjy.com )rs and their computer model to work out how sound waves travel in the whale's head, they were surprised to find that sounds coming from right in front of the whale actually travel under the animal's jaw.From there, sound waves move through the throat，into a hole in the back of the jaw, and finally to the pad of fat near the animal's ears.
36．Toothed whales _ ( http: / / www.21cnjy.com )_______ to search for what they will eat under the sea.
A．measure the shape and size of their objects
B．watch deep into the sea
C．ask other whales to work together
D．give out signals and wait for them to return
37．Which of the foll ( http: / / www.21cnjy.com )owing describes the way taken by sound waves through a Cuvier's beaked whale
A．A hole in the back of the jaw→the ears→the jaw→the throat.
B．The jaw→the throat→a hole in the back of the jaw→the ears.
C．The throat→the jaw→the ears→a hole in the back of the jaw.
D．The ears→the throat→a hole in the back of the jaw→the jaw.
38．According to the passage we know that ________.
A．the throat is important to the Cuvier's beaked whale's hearing
B．ships send out sound waves like a Cuvier's beaked whale
C．the ears are actually useless to the Cuvier's beaked whale
D．the researchers haven't found how the whales hear
B
(2013·天津高考改编)Last ( http: / / www.21cnjy.com ) night's meteor (流星) shower left many people in the community dissatisfied and demanding answers.According to Gabe Rothschild，Emerald Valley's mayor，people gathered in the suburbs of the city，carrying heavy telescopes，expecting to watch the brightly burning meteors passing through the sky.What they found instead was a sky so brightened by the city's lights that it darkened the light of the meteors passing overhead.
“My family was so ( http: / / www.21cnjy.com )frustrated，”admitted town resident Duane Cosby.“We wanted to make this an unforgettable family outing，but it turned out to be a huge disappointment.”
Astronomers—scienti ( http: / / www.21cnjy.com )sts who study stars and planets—have been complaining about this problem for decades.They say that light pollution prevents them from seeing objects in the sky that they could see quite easily in the past.They call on people and the government to take measures to fight against it.
There is yet a ( http: / / www.21cnjy.com ) population besides professional and amateur star observers that suffers even more from light pollution.This population consists of birds，bats，frogs，snakes，etc.For example，outdoor lighting severely affects migrating (迁徙的) birds.According to the International Dark Sky Association ，“100 million birds a year throughout North America die in crashes with lighted buildings and towers.”
Countless mor ( http: / / www.21cnjy.com )e animal casualties (伤亡) result from the use of artificial lighting.Clearly，people enjoy the benefits of lighting their evenings，but some scientists think it can be harmful for humans，too.They worry that exposure to light while sleeping can increase a person's chances of getting cancer.
Emerald Valley is onl ( http: / / www.21cnjy.com )y one community that is becoming aware of the negative effects of light pollution.For years，Flagstaff，Arizona，has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory.Similar efforts have been made worldwide，and a movement is underway to remind us to turn off lights when we are not using them，so that other creatures can share the night.
39．It happened last night that ________.
A．the city's lights affected the meteor watching
B．the meteors flew past before being noticed
C．the city light show attracted many people
D．the meteor watching ended up a social outing
40．What do the astronomers complain about
A．Meteor showers occur less often than before.
B．Their observation equipment is in poor repair.
C．Light pollution has remained unsolved for years.【来源：21·世纪·教育·网】
D．Their eyesight is failing due to artificial lighting.【出处：21教育名师】
41．What is the author concerned about according to Paragraph 4
A．Birds may take other migration paths.
B．Animals' living habits may change suddenly.
C．Varieties of animals will become sharply reduced.21·cn·jy·com
D．Animals' survival is threatened by outdoor lighting.
42．What message does the author most want to give us
A．Saving wildlife is saving ourselves.
B．Great efforts should be made to save energy.
C．Human activities should be environmentally friendly.www-2-1-cnjy-com
D．New equipment should be introduced for space study.
C
“The noise made by boa ( http: / / www.21cnjy.com )ts of whale watching tourists may be causing communication problems for the animals，”British researchers said last week.
Whale watching is a po ( http: / / www.21cnjy.com )pular tourist activity in places where groups of killer whales(虎鲸)live.Every day，dozens of boats filled with tourists go to watch the beautiful animals.Unfortunately，the engines of the boats make a lot of noise，and that may be causing problems for the whales，according to a report in the US science magazine Nature.
The whales ( http: / / www.21cnjy.com ) travel in groups, and communicate with each other through sonic (声波的) calls that some scientists refer to as singing.The sounds of the boat engines may be creating too much background noise for the whales to be able to hear each other.
The researchers ( http: / / www.21cnjy.com )listened to recordings of whale calls made between 15 and 25 years ago，before whale watching became popular.These were compared to more recent recordings.
They found that the a ( http: / / www.21cnjy.com )nimals have started to sing for longer than they used to, like a person shouting to a friend across a noisy room.
It is believed that ( http: / / www.21cnjy.com ) the whales are trying to communicate hunting or breeding information.Scientists said that, if this is prevented, the future of the world's whale population could be in danger.21教育网
“Animals become s ( http: / / www.21cnjy.com )low in mind and repeat themselves in noisy areas，”said Volker Deecke，a Canadian biologist.“They have to say things twice or three times in order to be understood.”
The killer whale ( http: / / www.21cnjy.com )s studied were living off the coast of northwestern America.The number of killer whales in this area has been falling for several years, but scientists are not sure why.21cnjy.com
43．The passage mainly tells us ________.
A．the problems of whale watching
B．how killer whales communicate with each other
C．the reduced population of killer whales caused by whale watching
D．hearing problems of the killer whales caused by whale watching
44．Now in a noisy background, the killer whales have to ________.
A．sing in a louder voice
B．sing longer
C．travel in smaller groups
D．get nearer to each other
45．Scientists believe that killer whales sing to ________.www.21-cn-jy.com
A．warn each other of dangers
B．keep in the same group
C．send useful information
D．enjoy themselves
46．From the passage，we can feel that the author is ________.
A．angry B．hopeful
C．worried D．disappointed
D
Sharks have been sw ( http: / / www.21cnjy.com )imming in the ocean for millions of years.They were on Earth even before dinosaurs! At the top of the world's ocean's food chain, sharks help keep the population of other ocean animals in balance.A large drop in the number of sharks can cause serious problems for all ocean animals.Saving sharks makes sense!
Many people are a ( http: / / www.21cnjy.com )fraid of sharks.But most sharks are harmless.Only a small percentage of sharks are known to attack humans.It adapts (适应)well to new habitats and eats whatever is available.However, today, sharks are in trouble.Nearly one third of the 400 shark species are in danger of extinction, largely due to overfishing.Each year，tens of millions of sharks are caught and killed just for their fins(鳍)．The fins are used to make shark fin soup.2·1·c·n·j·y
Humane Society Int ( http: / / www.21cnjy.com )ernational(HSI)joined with the Jane Goodall Institute's Roots and Shoots program and Beijing Zoo to protect sharks.An exhibit at the zoo，“The Price Behind the Taste－Protect Sharks.Don't Eat Shark Fins”，was designed to tell people that shark finning is cruel and unnecessary.It's hoped that the activity will help put an end to the_practice.
Shark fin soup is a ( http: / / www.21cnjy.com )lso eaten in the United States.In fact，the numbers of some shark species in US waters have dropped 90 percent in the last 30 years.To_slow_the_fall，laws_against_the_sale_of_shark_fins_have_been_passed_in_several_states，including Hawaii，Oregon，Washington，and California.
It's hoped t ( http: / / www.21cnjy.com )hat with our help，sharks will continue to swim in the ocean for many more millions of years.
47．What does the first paragraph mainly tell us
A．Ocean animals are at the top of the food chain.
B．Sharks play an important role in the ocean.
C．Sharks are an old species in the ocean.
D．Sharks are being caught and killed.
48．According to Paragraph 2，sharks are in trouble because ________.
A．they often attack humans
B．their food is being polluted
C．they are being caught for food
D．their habitat is being destroyed
49．The underlined ( http: / / www.21cnjy.com ) part“the practice”in Paragraph 3 refers to ________.
A．shark finning
B．shark protection
C．the program of HSI
D．the exhibit at Beijing Zoo
50．What do we know from the text
A．There are 400 shark species in the United States.
B．It's illegal to eat shark fin soup in the United States.
C．Most sharks are not interested in a human for dinner.
D．Sharks are very particular about their habitats and food.
Ⅳ.阅读填句(共5小题；每小题2分，满分10分)
The legal ag ( http: / / www.21cnjy.com )e for drinking alcohol in the United States is 21.51.________ Here we look at alcohol policies at American colleges and universities.
52．________ But m ( http: / / www.21cnjy.com )any schools have been moving to strengthen their rules.
The United State ( http: / / www.21cnjy.com )s has more than 17 million students in higher education.Each year, 1,700 of them aged 18 to 24 die from alcohol－related road accidents and other injuries.
6,000,000 more ar ( http: / / www.21cnjy.com )e injured while under the influence of alcohol, and almost 7,00,000 are attacked by another student who has been drinking.
One behaviour ( http: / / www.21cnjy.com ) that college officials are trying to prevent is binge(狂欢) drinking，having 4 or 5 drinks or more in a short period of time.Some researchers have found that students who think binge drinking is normal often overestimate(高估)how much other students really drink.53.________
At the Universi ( http: / / www.21cnjy.com )ty of Oklahoma，new policies went into effect after a 19 year old student died.He had been drinking heavily at a party.21·世纪*教育网
Now alcohol is not all ( http: / / www.21cnjy.com )owed in all fraternity(兄弟会) and sorority(女生联谊会) houses and university housing.Student organizations can serve alcohol at events but only on Friday and Saturday nights, and they must provide transportation to and from off campus parties.54.________
The policies gover ( http: / / www.21cnjy.com )n behaviour on campus and off.With a first violation(违反), students pay 75 dollars and their parents are told.55.________ For a second“strike”， they have to pay 150 dollars.A third strike means they will be removed from school for at least one term.
A．Underage d ( http: / / www.21cnjy.com )rinking is a crime but also a common part of college social life.
B．People under 21 will not be allowed to drink.
C．These policies differ from school to school.
D．A person can die of alcohol poisoning.
E．When they are drinking, they always forget it.
F．Other new ( http: / / www.21cnjy.com )requirements include an alcohol education programme that first year students take online.
G．They must also take an alcohol education class.
Ⅴ.短文改错(共10小题；每小题1分，满分10分)
Time fly like an a ( http: / / www.21cnjy.com )rrow.I'm already in the second half of Senior Grade 3 before I realized it.It is only a little more than three months before I graduate middle school.At the present，I'm busy review my lessons in order to take the College Entrance Examination.I hope to go to Beijing University，that is one of the best universities not only in China but also in the world.I'll try my best turn my dream to reality.Most of my classmates are also studying very hard to realize our wishes.I do believe everyone will be able to enter a very good university and college.21教育名师原创作品
Ⅵ.书面表达(满分25分)
假定你是李华，你的美国笔友Bill发来电子邮件，询问你是如何过星期天的。请你根据下面四幅图的提示给他回一封电子邮件，介绍你在星期天的活动。
注意：1.词数：100个左右；
2．可适当增加细节，以使行文连贯；
3．开头已给出，但不计入总词数。
Hi Bill，
Thank you for your ( http: / / www.21cnjy.com )e mail.Let me tell you what I did last Sunday.______________________________________________________________
______________________________________________________________
______________________________________________________________
Yours，
Li Hua
综合检测(三)
1．B 句意：通常孩子的行为举止是其家庭 ( http: / / www.21cnjy.com )环境的反映。reflection反映，符合句意。recognition识别，承认；return归还；record记录，均不合句意。
2．A 考查with复合结构。lay( ( http: / / www.21cnjy.com )布置，摆放)是及物动词，与dining table是动宾关系，且lay发生在不定式所表示的动作之前，故此处用过去分词作宾补，表示被动和完成。【来源：21cnj*y.co*m】
3．B 句意：他们呼吁图书馆在假日期间照常开 ( http: / / www.21cnjy.com )放。urge后是that引导的宾语从句，从句的谓语要用“should＋动词原形”，should可省略。故选B项。
4．A 句意：她小时候害怕骑马。be scared to do sth.害怕做某事；be scared of sth.害怕某物。【版权所有：21教育】
5．B 句意：他正在玩手机，突 ( http: / / www.21cnjy.com )然意识到老师在盯着他。become aware of sth.“意识到某事”。know of意为“了解”；reflect意为“反射，思考”；D项搭配错误。
6．C 句意：我的侄子非常顽皮，他 ( http: / / www.21cnjy.com )经常倒挂在小树上来来回回摇摆。upside down“上下翻转”；up to“直到”；the upsides and downsides“优势和缺点”；down and out“被打倒在地”。
7．A 句意：我希望你少说多 ( http: / / www.21cnjy.com )做。这样事情才能变好。根据句意可知说话人希望对方“少”说话，多工作。any修饰比较级时一般用于否定句或疑问句，因此B项不正确。此空白处需要“较少”之意，排除C和D两项。
8．A 考查过去分词的用法。此处abandoned意为：被放弃的。句意：一千多万美金的研究费用损失在废弃的核安全项目上。
9．C 句意：打开窗户，我们对面就是一座大山，高耸入云，像摩天大楼。opposite在……对面；against与我们背对，相反方向。
10．B 句意：大多数人通过电视目睹了我们的 ( http: / / www.21cnjy.com )载人飞船在太空中翱翔，这一事件极大地激励着我们。witness当场见到，目击，符合句意。seek寻找，探索，寻求；undertake从事；glance看一下，扫视。
11．D 句意：他致命的错误成了被攻击的目标，因为这个错误丧失了进军世界杯16强的机会。target目标，靶，受批评的对象，符合句意。
12．D 句意：每年的春节晚会不仅仅给我们 ( http: / / www.21cnjy.com )带来许多快乐，还造就了许多超级明星，如小沈阳。annual每年的，按年度计算的，符合句意。空格前有the，故排除A、B、C三项。
13．A 句意：一位女士说话像放连珠炮似的是 ( http: / / www.21cnjy.com )不礼貌的，听听别人的意见也很有必要。pause暂停，中止，符合句意。stand for代表，象征，表示；predict预言，预告，预测；oppose反对，反抗，与(某人)较量。
14．B 考查动词词义。flee既可作及物动词，又可作不及物动词；D项的时态不对；A、C项缺少介词from。
15．C drag oneself表示“蹒跚着前进”。句意：他气喘吁吁地在大街上蹒跚前进，可能病得不轻。
【语篇解读】 作者利用开会之余 ( http: / / www.21cnjy.com )的周末时间，进行自驾旅游观光活动。尽管他们在寻找道路方面遇到一些麻烦，但是欣赏了野外美丽的风景，心情十分愉悦。
16．B 根据下文My conference可知，作者来伦敦的主要目的是参加会议。
17．A 根据句中during the week可得出答案。
18．C 根据句中rent a car可得出答案。
19．D 作者打算利用周末时间，开车出去观光，这是一种想法。
20．B 根据句中after spendin ( http: / / www.21cnjy.com )g almost a year in the UK可知，Rebecca在英国待了将近一年后回到了美国。
21．A 结合整个句子可知，这里是set out for(a place)这一搭配。
22．D 这里用area指代前面提到的the south of Wales。
23．C 文中提到the ( http: / / www.21cnjy.com )main motorways和the more local roads两种交通道路，两者相比，the main motorways节省时间。
24．B 他们选择the more local roads是为了欣赏路两边的风光，故用so that。
25．C 结合下文可知，这里说明行动的顺序，发生在行动之初，用firstly。
26．D 根据前句We g ( http: / / www.21cnjy.com )ot a little lost可知，由于迷路，他们最终走得稍远了一些。end up doing sth.表示结果。
27．B 根据语境可知，他们预先打算好了路线。
28．A 根据句中that would take us to the abbey可知，这里指路线。
29．D 根据后句It was a spectacular view可知，这里指他们到达那里的时间。
30．C 根据句中we realized that可推断，这里指“在那个时刻”。
31．A 根据后句中about food可得出答案。
32．C 根据语境可知，他们一直在观看景色，因此把吃饭的事情忘记了。
33．D 根据句中had all day和语境可推断，他们一整天就喝了点可乐，用what。
34．C 忙了一整天，又没有吃饭，这个时候的感觉除了饿以外，当然是累了。
35．A 根据后句中returned safely to our hotel可知，他们返回了伦敦。
36．D 细节理解题。由第三段第三句可知柯氏喙鲸是通过发出信号，并等待信号返回来寻找食物。
37．B 细节理解题。根据最后一段可知柯氏喙鲸听力的过程为B项。
38．A 推理判断题。根据第一段第二句可推断喉咙对柯氏喙鲸听力很重要，故选A项。
【语篇解读】 本文是说明文。全文说明 ( http: / / www.21cnjy.com )了光污染带来的一系列问题。因为城市的灯光，人们没有看清昨天晚上的流星雨。由此光污染这个话题成为人们的谈论中心。光污染不仅仅影响人类，也伤害了其他动物。
39．A 细节理解题。由第一段中的“Wh ( http: / / www.21cnjy.com )at they found instead was a sky so brightened by the city's lights that it darkened the light of the meteors passing overhead.”可知，城市的灯光影响到人们观看流星雨。
40．C 细节理解题。由文章第三段 ( http: / / www.21cnjy.com )第一句“Astronomers...have been complaining about this problem for decades.”可知，这个问题几十年来悬而未决。
41．D 细节理解题。由第四段最后 ( http: / / www.21cnjy.com )一句“...100 million birds a year throughout North America die in crashes with lighted buildings and towers.”可知，光污染已经给动物的生存带来了极大的威胁。
42．C 推理判断题。作者通过讲述光污染对观测天象的影响和对动物生存的威胁告诉我们，人类的行为要有利于环境。
43．D 主旨大意题。文章讲述了观鲸船的噪音给虎鲸的信息交流造成了麻烦。
44．B 细节理解题。由第五段可知，因为受噪音干扰，现在虎鲸“唱”的时间比原来长。
45．C 细节理解题。由倒数第三段可知，虎鲸“唱歌”是为了交流捕食或繁殖信息。
46．C 推理判断题。文章介绍观鲸船的噪音给虎鲸的交流造成了困难，而且虎鲸数量在下降，科学家也不明白其中原因，显然作者对此感到“担忧”。
【语篇解读】 本文是说明文。由于人类过度捕杀，鲨鱼数量锐减，部分种类甚至濒临灭绝。让我们一起行动起来，保护鲨鱼。21*cnjy*com
47．B 段落大意题。根据第 ( http: / / www.21cnjy.com )一段中的sharks help keep the population of other ocean animals in balance.A large drop in the number of sharks can cause serious problems for all ocean animals可知B项正确。
48．C 细节理解题。根据第二段 ( http: / / www.21cnjy.com )中的tens of millions of sharks are caught and killed just for their fins.The fins are used to make shark fin soup可知C项正确。
49．A 篇章结构题。根据上文中的s ( http: / / www.21cnjy.com )hark finning is cruel and unnecessary可知，作者认为食用鱼翅既残忍且没有必要，号召大家停止食用鱼翅，所以应选A项。
50．C 细节理解题。根据第二段中的 ( http: / / www.21cnjy.com )But most sharks are harmless.Only a small percentage of sharks are known to attack humans可知C项正确。
51－55 ACDFG
短文改错
第一句：fly→flies；第二句 ( http: / / www.21cnjy.com )：realized→realize；第三句：graduate后加from；第四句：去掉第一个the；review→reviewing；第五句：that→which；第六句：best后加to；to→into；第七句：our→their；第八句：and→or
【参考范文】
Hi_Bill，
Thank_you_for_your_e mail.Let_me_tell_you_what_I_did_last_Sunday.
In the morning, I ( http: / / www.21cnjy.com )did my homework with the help of my tutor.After lunch I surfed the Internet for the latest news and then I chatted with my friends online.In the afternoon, my parents and I went to visit my grandparents, who live on the other side of the city.We hadn't seen each other for long, so they were delighted to see us and we had dinner together in the evening.Since my family love singing very much, we took turns to sing songs after dinner.I sang a few popular songs.My grandparents sang some classic old songs.My mother and father especially enjoy singing together.I really had a great time that day.
Can you tell me something about your life
Yours，
Li_Hua
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