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Unit 5 课时跟踪检测（二）
Warming Up & Reading — Language Points
Ⅰ.单词拼写或用所给单词的正确形式填空
1．No one knows when the volcanoes will erupt (喷发)．
2．This new invention has enormous sales potential (潜能)．
3．It's a pleasure to work alongside (与……一起) such men.
4．I can't evaluate (评价) his ability without seeing his work.
5．She got a bank loan to buy some new equipment (equip) for the sports club.
6．Almost everyone thinks the books are suitable (suit) for children.
7．The TV program is absolutely (absolute) fascinating, so I can't wait to see it.
8．—Can you describe the actual condition of the country
—Well, actually I know a little about it. (actual)
9．He was appointed as manager of the company. But to everyone's surprise, he didn't accept the appointment. (appoint)
Ⅱ.选词填空
burn to the ground， in the distance， make one's way， compared with， get close to， be amazed at
1．As soon as he saw his girlfriend Helen, Jack made_his_way through the crowd to greet her.
2．His house was burnt_to_the_ground,_which made him homeless.
3．I climbed the hill and saw a faint light coming from a house in_the_distance.
4．When a car pulled up alongside us, we were_amazed_at its appearance.
5．Don't get_close_to the house whose roof is under repair.
6．Compared_with the sales on last year's Singles' Day, the sales on Alibaba almost doubled this year.
Ⅲ.完成句子
1．你最好戴上一顶帽子来保护你的脸不被强烈的阳光所伤害。
You'd better put on a cap to protect_your_face_from being burnt by the strong sunlight.
2．去年，他被任命为篮球协会的主席。
He was_appointed_as chairman of the Basketball Association last year.
3．你可以将你的大箱子放在角落里，那不挡路的。
You can stand your big suitcase in corner; it is out_of_the_way there.
4．这个三百年前建成的宫殿被入侵者全部焚烧了。
The palace built three hundred years ago was_burnt_to_the_ground by the invaders.
5．可怕的地震袭击了这个小镇，造成至少12人死亡，100多人受伤，并且对房屋、道路和桥梁造成重大损失。
The terrible earthquake hit the town, killing at least 12 people, over 100 people injured and causing_great_damage_to houses, roads and bridges.
6．好奇的孩子们决心前往洞穴看看里面是什么。
The curious children were determined to make_their_way to the cave to see what was in it.
7．即使我几年前曾经来过西藏，这次，我依旧对这美丽的风景感到惊讶。
Even if I once came to Tibet several years ago, I_am_still_amazed_at its beautiful scenery this time.
8．当打雷的时候，突然之间，整个房间像白天一样明亮。
All of a sudden, the whole room was as_bright_as_day,_when the lightning hit.
Ⅳ.阅读理解
A
Animals may sense chemical changes in groundwater that occur when an earthquake is about to strike.
This could be the cause of bizarre animal behavior. Researchers began to investigate these chemical effects after seeing a colony of toads (蟾蜍) abandon its pond in L'Aquila, Italy, in 2009 — days before a quake.
The L'Aquila toads are not the first example of strange animal behavior before a major earthquake. There have been reports throughout history of animals and fish behaving in unusual ways just before an earthquake struck. In 1975, in Haicheng, China, for example, many people spotted snakes emerging from their holes a month before the city was hit by a big earthquake. This was particularly strange, because it occurred in January, when snakes were in the middle of their annual hibernation. With temperatures well below freezing, venturing outside was suicide for the cold blooded animals.
Ms Grant, a biologist from the Open University, was monitoring the toad colony as part of her PhD project. “It went from 96 toads to almost zero over three days，” she recalled.
Scientists had been studying the chemical changes that occur when rocks are under extreme stress. They wondered if these changes were linked to the mass departure of the toads. Their tests have now revealed, not only that these changes could be connected, but that the Earth's crust (地壳) could directly affect the chemistry of the pond that the toads were living in at the time. Animals that live in or near groundwater are highly sensitive to any changes in its chemistry, so they might sense this days before the rocks finally “slip” and cause a quake.
语篇解读：研究人员发现某些动物可以感觉到地震发生前地下水发生的化学变化，从而采取一些奇怪的逃避性行为。
1．The underlined word “bizarre” in Paragraph 2 means “________”．
A．harmful B．strange
C．sick D．sensitive
解析：选B 词义猜测题。结合下文中介绍的蟾蜍离奇搬家及冬眠的蛇在寒冬里出洞可知，此处是指奇怪的动物行为，故bizarre与strange同义。
2．We can learn from the passage that the Haicheng earthquake happened ________.
A．in January 1975 B．in February 1975
C．in March 1975 D．in April 1975
解析：选B 细节理解题。根据第三段第三、四句可知，人们看到冬眠的蛇出洞是在一月份，而地震是一个月后发生的，即海城地震发生在1975年2月。
3．If a snake goes out of its hole in winter, that is ________.
A．common B．fun
C．deadly D．safe
解析：选C 细节理解题。根据第三段最后两句可知，冷血动物在寒冷的天气里冒险出洞无异于自杀，故C项正确。
4．What can we infer from the passage
A．The strange behavior of animals might help us forecast an earthquake.
B．Toads are more active than snakes in winter.
C．The L'Aquila earthquake had been actually predicted before it occurred.
D．Ms Grant used to be a geologist.
解析：选A 推理判断题。根据第一段第一句和最后一段可知，某些动物可以感觉到地震发生前地下水发生的化学变化从而采取相应的逃避性行为，所以这些动物的奇怪行为可以帮助我们预测地震，故A项正确。
B
Studying abroad is tough. Thankfully, there are several apps that make it easier to travel and communicate with family and friends across the ocean, which are helpful in relieving some of that study abroad anxiety.
Triposo：The App Store has over 142 separate Triposo apps, each one full of information about one trip destination. Each destination's front page shows the local time, up to date currency exchange rate and the top seven things to do. The “Practicalities” tab shows addresses of local public transportation stops, grocery stores and currency exchange locations. The “Travelpedia” tab gives you a quick history lesson on the city, including a list of annual festivals and suggestions of local food you have to try before you leave. And each Triposo app is available offline, so you don't need Wi Fi to plan your trip throughout the day!
Evernote：Thanks, Evernote, for being the greatest app ever. Use it to record lectures and take notes in class, make grocery lists and create to do lists for your travel destination. Save your travel routes, hotel information and address of the closest coffee shop right to your phone for easy access when you're on the go.
Viber: While WhatsApp is the more popular app for overseas communication, Viber takes it a step further in terms of functionality. This app uses Wi Fi, so you can text and even make calls while you're away. The sound quality is different from a regular phone call, but it is very clear.
Foodspotting: Hungry in a new city Check your Foodspotting app — it scans your location for photos and reviews of good food in your area. Foodspotting offers recommendations based on your location, so you can choose between lots of delicious options nearby.
Google Translate: If I had superpower, I would speak every language. But until that day comes, Google Translate is the way to go. Don't be dumb when you're in a new country. Know what you want to say when you get to the coffee shop. Don't just point and say it sheepishly in English — zero people will like you. Get out that Google Translate on your way there, figure out what you want to say, practice your pronunciation, and walk in confidently.
语篇解读：本文是一篇应用文。文章通过列举的形式，列出五款在国外旅行时有用的软件：Triposo, Evernote, Viber, Foodspotting, Google Translate。
5．What do Triposo and Evernote have in common
A．They display public transportation.
B．They introduce foods and festivals.
C．They can be used for classroom studies.
D．They can help you plan for your trip.
解析：选D 细节理解题。根据文章第二段的“each one full of information about one trip destination”和文章第三段的“create to do lists for your travel destination”可知，两个软件都可以帮助制订旅行计划，故选D。
6．If a student studying abroad wants to phone home, he can use ________.
A．Viber B．Triposo
C．Evernote D．Google Translate
解析：选A 细节理解题。根据第四段的句子“This app uses Wi Fi, so you can text and even make calls while you're away.”可知，Viber可以用来打电话，故选A。
7．While in a new country and using Google Translate, we're advised to ________.
A．teach local people to speak English
B．speak English with local people
C．talk to local people in their language
D．make ourselves understood in our language
解析：选C 推理判断题。根据最后一段的句子“Don't be dumb when you're in a new country. Know what you want to say when you get to the coffee shop. Don't just point and say it sheepishly in English — zero people will like you. Get out that Google Translate ...”可知，当你在非母语地区，用英语和本地人交流可能不会很受欢迎，利用谷歌翻译，用当地语言跟当地人交流可能会更好，故选C。
Ⅴ.阅读七选五
How Northern Europeans Beat the Winter Blues
Ask a child from Northern Europe to draw two pictures — one on a rainy day and a second in the sunshine — and this is what you will get: __1__ When a yellow sun sends out some light from the corner, the man is smiling.
__2__ They think this is true because they are so aware of how their environment affects them. Yet that link has no scientific basis. In October 2008, a group of researchers examined the influence of different daily weather factors, including temperature, wind and sunlight, on 1,200 participants. The conclusion was that good or bad weather had little effect on people's feelings. __3__ A person who is upset on dark or cold days suffers from a negative mood, and he will be likely to experience a sad winter. This is an illness called Seasonal Affective Disorder (SAD). __4__
Ani Kalayjian, professor of psychology at Fordham University, advises that we should take steps to strengthen the brain's system against weather driven mood changes. Research on SAD has been focused on the brain's response to darkness and light. When our eyes detect darkness, the brain gives off melatonin (褪黑激素), which starts sleep cycles.__5__ It takes over to help us wake up and feel better when we detect light.“We can encourage people to take charge of their feelings，” says Kalayjian. “We tell them to leave the computers and the indoor games and sun themselves. That's when people can recharge their serotonin (血清素) and get a better mood.”
A．Northern Europeans associate rain with sadness and sunshine with happiness.
B．It is seriously doubted among the people who suffer from SAD.
C．It affects about 10% of the population of Northern Europe each year.
D．Another chemical called serotonin, however, can make people happy.
E．In the first, as raindrops fall from the top of the page, the man behind the window has an unhappy expression.
F．Most studies prove that a negative feeling is associated with bad weather.
G．They determined that people actually differ in their sensitivity to weather changes.
语篇解读：天气对人的情绪有影响吗？研究表明，情绪和天气关系不大，情绪的好坏主要是由自身原因引起的，而控制好自己的情绪才最为重要。
1．选E 根据第一句中的“to draw two pictures — one on a rainy day and a second in the sunshine”可知，让孩子画两张图画：一张是雨天，一张是阳光明媚。再根据空后的句子“When a yellow sun sends out ... the man is smiling.”可知，设空处与之形成对比，应是描述雨天那张图的画面。故选E项。
2．选A 设空处为本段的主题句。根据空后的“They think this is true because they are so aware of how their environment affects them.”及“that link”可知，本段主要讲北欧人把心情与天气联系在一起。故选A项。空后的They指代该选项中的Northern Europeans。
3．选G 根据空前提到的好天气或坏天气对人的情绪影响不大，空后提到有人在黑暗或寒冷的日子心情不好可知，设空处应表示对天气变化的敏感程度因人而异。故选G项。
4．选C 设空处前两句句意：在黑暗或寒冷的日子里悲伤的人会有消极的情绪，他将有可能经历悲伤的冬季，这是一种称为季节性情感障碍的疾病。设空处衔接上文，季节性情感障碍每年影响到北欧10% 的人口。故选C项。
5．选D 空前提到当我们的眼睛察觉到黑暗，大脑就会释放褪黑激素，使人们进入睡眠状态；空后提到当我们察觉到光，就会帮助我们清醒并情绪愉悦。由此可知，这是两种情况的对比，故选D项，该选项中的Another chemical called serotonin与上文的melatonin相呼应。
Ⅵ.课时微写作(根据提示完成小作文)
1．Having_studied_volcanoes (从事火山研究) now for many years, I am still amazed at their beauty as well as 2.their_potential_to_cause_great_damage (它们潜在的巨大破坏力). When volcanoes 3.erupt (爆发), red hot lava will fountain hundreds of metres into the air. It is 4.an_absolutely_fantastic_sight (绝妙的景象). But on the other hand, they will 5.burn_to_the_ground (全部焚毁) everything in its path. Besides, ashes in the air make it impossible for flights to work. If you 6.are_about_to_fly (即将乘飞机) across the volcano area, you should 7.take_notice_of (留意) the latest news about it.PAGE
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Unit 5 课时跟踪检测（三）
Learning about Language & Using Language
Ⅰ.单词拼写或用所给单词的正确形式填空
1．I felt uncomfortable (不舒适的) in my stomach because I ate too much.
2．The whole house trembled (摇晃)when the train went by.
3．A bomb exploded in the village, causing panic (恐慌) among people.
4．Basic human rights are now guaranteed (保障) in our country.
5．She was unconscious (conscious) but her heart was still beating.
6．It helps children to develop an appreciation (appreciate) of poetry and literature.
7．He was anxious to leave and he could not hide his anxiety. (anxious)
8．When she thought back to those hard days, she would bathe (bath) her face in tears.
9．More importantly, I am a person full of passion for a variety (vary) of things.
Ⅱ.选词填空
give birth to， be home to， glance through， have a gift for， under guarantee， take ...by surprise， vary from ... to ...
1.Attracting senior citizens, Florida is_home_to the largest population of elder Americans.
2．Even though he is a little boy, he has_a_gift_for playing musical instruments.
3．I came across a piece of shocking news when I was glancing_through the newspaper.
4．The students vary_from one to another in character.
5．My colour TV set is only one year old and it is still under_guarantee.
6．It was the study of history that gave_birth_to the social sciences.
7．The heavy snowfall took us all by_surprise and we had to stay at home.
Ⅲ.完成句子
1．Is she in If_not (如果不在), could I speak to her sister
2．The little girl is_said_to_have_got (据说获得) the first in the English exam.
3．In the middle of the forest lies_a_deep_lake (有一个很深的湖)．
4．The reporter hurried to the airport, only_to_find (结果却发现) the plane had taken off.
5．The film is as_interesting_as (一样有趣) that one.
Ⅳ.完形填空
When I was 25 years old, I had a big dream in my mind and lots of things in my backpack. I wanted to travel around Africa with my __1__. So I left my hometown with great confidence and __2__ in Cape Town on a one way ticket, not really __3__ what to do next. __4__， before my trip actually started, I met a kind, old Nigerian, man. He gave me the best travel __5__ I ever received: “Be like a student on your way around the world.”
It sounds __6__， but it really changed my idea about traveling. He helped me __7__ that travel is about learning and observing different __8__. “It's far too easy to go into a(n) __9__ country for you and believe your ways are better. But if you study, ask questions, and __10__ to learn from the locals, you'll have far richer __11__，” he promised me.
On other trips __12__ I was on my tour way to Cancun, I didn't know the man so I was just a __13__. I only stayed there for a week to see the __14__ and places of interest and then left. The culture didn't __15__ me. I left the cities and towns without really __16__ anyone or anything. Those people and things really __17__ in those very places to which I had __18__ a visit.
This time, I promised to myself that I would be a __19__ student traveler. After seven months of __20__ traveling from Cape Town to Cairo, I returned home. Having a student like attitude helped me learn a lot. This trip satisfied me more than any other trip ever did to me.
语篇解读：本文主要讲述了想环游非洲的作者在遇到一位老人后改变了自己对旅行的看法。
1．A.friend B．pet
C．backpack D．family
解析：选C 根据上文“When I was 25 years old, I had a big dream in my mind and lots of things in my backpack. I wanted to travel around Africa”可知，作者想要背着自己的背包环游非洲。
2．A.continued B．stopped
C．danced D．arrived
解析：选D 根据上文“So I left my hometown with great confidence”可知，作者充满信心地离开家乡，买了一张单程票到达开普敦。
3．A.sure B．excited
C．afraid D．concerned
解析：选A 作者充满信心地离开家乡，行至开普敦，但是并不确定接下来要做什么。
4．A.Certainly B．Luckily
C．Truly D．Sadly
解析：选B 根据下文通过老人的帮助作者学到了很多可知，此处是说幸运的是，在作者真正开始自己的旅程之前，作者遇见了一位善良的老人。
5．A.knowledge B．feeling
C．advice D．reason
解析：选C 根据下文“Be like a student on your way around the world.”可知，老人给了作者旅行建议。
6．A.simple B．funny
C．boring D．foolish
解析：选A 根据下文“but it really changed my idea about traveling”可知，老人的建议听起来很简单，却改变了作者关于旅行的想法。
7．A.remember B．choose
C．improve D．realize
解析：选D 根据上文老人的建议改变了作者关于旅行的想法可知，此处是说老人帮助作者明白了旅行的意义。
8．A.cultures B．events
C．places D．backgrounds
解析：选A 根据下文“The culture”可知，老人帮助作者明白了旅行的意义在于了解和观察不同的文化。
9．A.strange B．magic
C．new D．interesting
解析：选C 根据上文作者讲述关于自己旅行的事情可知，此处是说去一个对自己来说全新的国家并且相信你自己的方式是更好的是相当容易的。
10．A.accept B．try
C．decide D．forget
解析：选B 根据上文老人说旅行的意义在于了解和观察不同的文化可知，此处是说如果你试着学习、问问题以及向当地人学习，你会拥有更加丰富多彩的经历。
11．A.task B．dream
C．achievement D．experience
解析：选D 参见上题解析。
12．A.since B．where
C．when D．before
解析：选C 根据上文“On other trips”可知，当作者去坎昆旅行的时候，作者不认识这位老人。
13．A.tourist B．student
C．reporter D．businessman
解析：选A 当作者去坎昆旅行的时候，作者还不认识这位老人，所以那次旅行作者仅仅只是个游客。
14．A.picture B．sight
C．show D．mountain
解析：选B 根据下文“and places of interest and then left”可知，作者只在坎昆停留了一周，看风景，去一些名胜，然后离开。
15．A.inspire B．change
C．help D．influence
解析：选D 根据上文作者只在坎昆停留了一周，看风景，游览名胜，然后就离开了可知，文化并没有对作者产生影响。
16．A.refusing B．encouraging
C．knowing D．teaching
解析：选C 作者匆匆离开并没有真正意义上地认识任何人、了解任何事。
17．A.existed B．disappeared
C．kept D．started
解析：选A 根据上文作者离开的时候并没有真正意义上地认识任何人、了解任何事可知，这些人和事都存在于作者参观过的地方。
18．A.wanted B．paid
C．organized D．broken
解析：选B 参见上题解析。
19．A.beautiful B．proud
C．real D．wise
解析：选C 根据上文作者对自己从前的旅行的描述可知，此处是说作者向自己承诺要成为一个真正的学生游客。
20．A.difficult B．successful
C．common D．challengeable
解析：选B 根据下文“I returned home. Having a student like attitude helped me learn a lot. This trip satisfied me more than any other trip ever did to me.”可知，在从开普敦到开罗的七个月的成功旅行后，作者回到家乡。有一个和学生一样的态度对作者来说帮助很大，这让作者感到比以往任何一次旅行都满意。
Ⅴ.阅读理解
A
Let me ask you a question: What is the tallest mountain on Earth？Most school children will say the answer is Mount Everest near the border between Nepal and Tibet.
There is something that is 304 meters taller than Mount Everest. However, it is mainly underwater. It begins at the bottom of the Pacific Ocean, and rises more than 17 kilometers from the ocean floor.
Its name is Mauna Loa. In the Hawaiian language，Mauna Loa means“Long Mountain”. Mauna Loa is more than half of the island of Hawaii, the largest of the Hawaiian Islands.
It is also the largest and most active volcano on Earth. It has produced liquid rock called lava more than thirty times since records were first kept in 1843. Today, Mauna Loa is quiet. It is not producing lava. However, volcano experts say it is only a matter of time before this happens once again.
SARAH LONG: Mauna Loa is not the only volcano on the island of Hawaii. There are four others. Three of them are no longer active. One of them still is active. It is named Kilauea.
It has produced lava more than fifty times in the last one hundred years. At this moment, red hot lava is pouring out of Kilauea.It has been doing this since 1983.
Sometimes the lava moves slowly. At other times, it pours out very fast as huge amounts of pressure force it from the volcano. During these times, it moves almost as quickly as water moving down the side of a mountain. Sometimes Kilauea produces large amounts of lava that seem like rivers of fire.
Experts say the volcanoes of the island of Hawaii are proof that the changing environment of Earth is, and will always remain, beyond human control.
语篇解读：本文介绍了美国夏威夷岛上的火山情况。
1．Generally speaking, most people think the highest mountain is________.
A．Mount Everest B．Mauna Loa
C．Kilauea D．Haleakala
解析：选A 细节理解题。根据第一段中的“Most school children will say the answer is Mount Everest near the border between Nepal and Tibet.”可知，一般而言，大多数人会认为最高的山是珠穆朗玛峰。故选A项。
2．Which of the following is TRUE about Mauna Loa
A．Mauna Loa is 340 meters taller than Mount Everest.
B．Mauna Loa begins at the bottom of the Atlantic Ocean.
C．Mauna Loa is over 17 kilometers tall in all.
D．Mauna Loa is the largest and most active volcano in the USA.
解析：选C 细节理解题。根据第二段的“... and rises more than 17 kilometers from the ocean floor.”可知，C项是正确的。
3．How many active volcanoes are there on the island of Hawaii
A．Two. B．Three.
C．Four. D．Five.
解析：选A 细节理解题。根据第四段的首句“It is also the largest and most active volcano on Earth.”可知Mauna Loa是活火山；而由第五段中的“One of them still is active.It is named Kilauea.”可知，Kilauea也是活火山。因此在夏威夷岛上有两座活火山。故选A项。
4．From the passage, we can infer that________.
A．the changing environment of the Earth depends on the volcanoes of the island of Hawaii
B．the volcanoes in Hawaii prove the environment of Earth is beyond human control
C．Mauna Loa will not erupt forever and is the largest dead volcano on Earth
D．the volcanoes of the island of Hawaii are four in total
解析：选B 推理判断题。根据最后一段的内容可知B项是正确的。
B
Giant kites could supply green energy without the need for taxpayer funded subsidies (津贴) within years. Kite Power Solutions expects to open the U．K.'s first kite power plant in March 2017 in Scotland. It hopes to roll out the technology onshore and at sea, building systems with the capacity to produce “hundreds of megawatts” of power within the decade. The company believes the technology could reduce the cost of wind energy. And it predicted that kite power would cost so little that developing countries would be more likely to use it to free themselves off polluting carbon heavy energy sources.
A spokesman Ainsworth for Kite Power Solutions said the technology could decrease the cost of offshore wind energy, meeting the need for governments' efforts to reduce carbon emissions. He said the technology was easy to fix and maintain, meaning it could be used in deep water, on floating structures far from shore. “If we do that, it opens up a global deep water offshore wind market，” he said.
The technology could control rising CO2 emissions in the developing world, where the need to save money forces people to resort to polluting technologies such as diesel. The company has tested the technology on a small scale in Essex and will move its headquarters to Glasgow to prepare for next year's launch. It has won planning permission for a 500 KW demonstration system.
The U．K.'s green energy trade body, RenewableU.K. welcomed the technology but warned it was not a_silver_bullet. The deputy chief executive Maf Smith said，“This is an ambitious project to develop wind power at extraordinary heights and it shows the level of new ideas within the renewable industry. Kite power is at an early stage of development and it will take time to see how the technology progresses. Anyway, we will need a wide range of energy sources in the future to meet our needs in an environmentally friendly way.”
语篇解读：本文主要介绍了风筝发电这项新技术的优势，即成本低、易于安装和维护等，但有人提出相反观点。所以依靠风筝发电技术解决我们的能源需求问题仍有很长的路要走。
5．What is the most important advantage of kite power
A．Its low costs. B．Its high qualities.
C．Its great usefulness. D．Its wide using areas.
解析：选A 细节理解题。根据文章第一段最后两句“The company believes the technology could reduce the cost of wind energy. And it predicted that kite power would cost so little that ...”可知，风筝发电最重要的优点是成本低。故选A项。
6．In the eyes of Ainsworth, his company's technology ________.
A．will solve the problem of air pollution
B．can be convenient and powerful to use
C．will change how people explore the ocean
D．can deal with the shortage of water worldwide
解析：选B 推理判断题。根据文章第二段中的“He said the technology was easy to fix and maintain, meaning it could be used in deep water, on floating structures far from shore. ‘If we do that, it opens up a global deep water offshore wind market，’ he said.”可知，这项技术易于安装和维护，如果真的那么做，这会开拓出一个新市场。由此可知，安斯沃思认为这项技术便于使用且效能很高。故选B项。
7．The underlined phrase “a silver bullet” probably means that using this technology to meet our needs is not ________.
A．scientific B．complicated
C．simple D．traditional
解析：选C 词义猜测题。根据文章最后一段中的“welcomed the technology”可知，英国可再生能源协会表示欢迎这项新技术，but表转折，再结合该组织的副首席执行官玛夫·史密斯所说的话“Kite power is at an early stage of development and it will take time to see how the technology progresses.”可知，风筝发电尚处于早期，看到这项技术如何进展还需很长一段时间。由此可推测，was not a silver bullet在此表示要想运用这项技术解决我们对能源的需求问题并不是一件简单的事情。故选C项。
8．What is the author's purpose in writing the text
A．To argue for cleaner energies. B．To inform a new way to get energy.
C．To advertise a great energy company. D．To compare different energy resources.
解析：选B 写作意图题。本文主要介绍了风筝发电技术的优势、发展及前景等，其意图主要是向读者介绍一种获取能源的新方式。故选B项。PAGE
第 5 页 共 5 页
Unit 5 课时跟踪检测（一）
Warming Up & Reading — Pre-reading
阅读理解
A
Treasure hunting is something that usually only appears in pirate tales; however, a complex pit (坑) on Oak Island, on the south shore of Nova Scotia, Canada, sparked a more than 200 years real life treasure hunt. Sixteen year old Daniel McGinnis took a simple fishing trip on the island in 1795. Upon exploring a wooded part of the island, he came across a tree with markings which led to him finding a thirteen feet wide depression (下陷) in the ground. Thoughts of buried pirate treasure inspired him to dig and see what was causing this. After gathering his friends John Smith and Anthony Vaughan, they dug only two feet into the ground before reaching flagstones (石板). Once these stones were removed, the boys continued to dig only to find logs at the ten and twenty five feet level. At this point they knew they could not dig any farther without more help.
Years passed as the boys likely searched for some financial assistance and digging help. In 1803, with the backing of Simeon Lynds, another excavation was attempted. This time there were various oak platforms, putty, coconut fiber mats, stones and charcoal they kept encountering every ten feet and eventually they reached a flat stone that was inscribed with strange letters and markings. This stone later was translated to read “Forty Feet Below Two Million Pounds Are Buried”， but at the time was just quickly removed only to find more wood below. After this discovery two days passed and upon returning to the pit they found it had flooded with seawater. All attempts to remove the water failed.
Many theories still exist on who created the pit and what may be at the bottom. Some say it may have been built by pirates, but to create a dry dock and not hide treasure. Many would like to claim aliens landed and created this pit for something from their world. One last theory is that it is simply a natural sinkhole and that through years of various objects sinking it could appear that there were “platforms” of trees and such.
语篇解读：本文主要介绍了加拿大橡树岛上的天坑所引发的寻宝热。
1．Why did Daniel McGinnis go to Oak Island at first
A．To go fishing.
B．To find a tree with markings.
C．To hunt treasures.
D．To make an exploration.
解析：选A 细节理解题。由文章第一段第二句“Sixteenyear old Daniel McGinnis took a simple fishing trip on the island”可知，Daniel McGinnis最初去橡树岛的目的是钓鱼。
2．What made the boys stop digging
A．The weather.
B．Lack of money and help.
C．The flagstones.
D．A feeling of despair.
解析：选B 细节理解题。由文章第二段第一句“Years passed as the boys likely searched for some financial assistance and digging help.”可知，因为他们缺少经费和帮助，所以停止了挖掘。
3．The last paragraph implies that ________.
A．no one knows exactly how the pit was created
B．the pit was a natural sinkhole
C．treasures are to be discovered in the pit
D．the pit was created to fool people
解析：选A 推理判断题。根据文章最后一段可知，人们对天坑是如何产生的众说纷纭，没有定论。
B
October 21 was a very dark day in Texas. Not only did Hurricane Hanna destroy homes, but it caused the largest business damage in Texas's history. The worst thing is Hanna's destructive force nearly wiped out most power poles and power lines. According to Center Point Energy, Hurricane Hanna affected 2.15 million customers. Currently, more than 4,000 of them are still in the dark. Crews have worked 16 hour shifts (更换) to restore power to residents.
Most of Houston seems to be returning to normal. Schools, restaurants, retail (零售) stores and gas stations are open. Smiles are back. But harder hit places, including Galveston, will take much longer to recover. Hundreds of people are still missing, and coastal towns are a mess. Some ruins from storm have drifted south to other beaches in Texas. Several public schools in Galveston are closed due to water damage. Parents are registering kids in other area schools which are scheduled to begin class on November 13. Many school supplies were destroyed.
Clara Barton Village is an emergency shelter located at Alamo Elementary School in Galveston, Texas. This is where Paula Reed and her family are staying. Believe it or not, Paula Reed and her family consider this hurricane a blessing. When Paula was a girl, she was an orphan, but was taken in by her stepmum, Antonia Flores. Reed lost contact with Flores and had been trying desperately to locate her for the past few years. Before the hurricane, Reed and her family moved away from Galveston to a San Antonio shelter. There, she reunited with Flores after 30 long years! The moment they saw each other, their lives were changed.
语篇解读：本文主要讲了在德克萨斯州发生的飓风以及飓风对当地人们生活产生的影响。
4．What's the most serious damage caused by Hurricane Hanna
A．Hundreds of people are still missing.
B．A large number of people are homeless.
C．Power facilities are severely destroyed.
D．Factories are closed and many people are jobless.
解析：选C 细节理解题。根据第一段第三句“The worst thing is Hanna's destructive force nearly wiped out most power poles and power lines.”可知飓风最大的影响是破坏了电力设施。故选C项。
5．It can be inferred that the residents in Houston ________.
A．have fully recovered from the disaster
B．were the most unlucky people in the disaster
C．need a long time to bring their life back to normal
D．suffered less from Hanna than people in Galveston
解析：选D 推理判断题。根据第二段第一句“Most of Houston seems to be returning to normal.”可知休斯敦地区基本恢复了正常；根据第四句“But harder hit places, including Galveston”可知Galveston地区的情况比休斯敦地区情况严重得多。故选D项。
6．Kids in public schools in other areas of Houston will have to stay at home for ________.
A．at least one month
B．at least three weeks
C．two weeks at most
D．nearly half a month
解析：选B 推理判断题。根据第一段第一句可知是10月21号发生的地震，根据第二段倒数第二句可知父母将孩子送到其他学校学习，这些学校11月13号开学，所以学生在家的时间差不多是三个星期。故选B项。
7．Paula Reed and her family consider the hurricane a blessing because ________.
A．they had nothing lost after Hurricane Hanna
B．they lived a happier life in San Antonio shelter
C．Paula was taken good care of in the shelter
D．Paula reunited with her stepmother after three decades
解析：选D 细节理解题。根据最后一段描述可知由于飓风Paula Reed与她的继母团聚了。故选D项。
C
Stephen Hawking Warns Humans
Must Leave Earth Soon
Professor Stephen Hawking recently came out with a serious warning for people. While at the Starmus Festival, a festival in Trondheim, Norway, celebrating science and the arts, Hawking warned people that the human race is in serious danger.
Hawking criticized President Donald Trump for denying climate change. Then the physicist warned the audience, “I am not denying the importance of fighting climate change and global warming, unlike Donald Trump, who may just have taken the most serious and wrong decision on climate change this world has seen.”
Hawking proposed that the leading countries should send astronauts to the Moon before 2020 to restart a movement of more exploration in space. The BBC reported that Hawking suggested that we “build a lunar base in 30 years' time and send people to Mars by 2025”．
According to the BBC, Professor Hawking said, “Spreading out into space will completely change the future of humanity.” He continued, “I hope it would unite competitive nations in a single goal to face the common challenge for us all.” The physicist shared more ideas to motivate the younger generation to continue exploring space. Hawking stated, “A new and ambitious space program would excite (young people), and stimulate interest in other areas, such as astrophysics (天体物理学) and cosmology (宇宙学)．”
Hawking also revealed his vision of other forms of energy that could move us to a new planet. He warned the audience, “The Earth is under threat from so many areas that it is difficult for me to be positive.” He continued, “Our natural resources are being drained at an alarming rate. We have given our planet the disastrous gifts of climate change, rising temperatures, reduction of the polar ice caps, deforestation (滥伐森林), and decimation (大批杀死) of animal species. We can be an ignorant and unthinking (考虑不周的) lot.”
The professor warned the audience that doing nothing would lead nowhere. He said, “If we succeed we will send a probe (航天探测器) to Alpha Centauri within the lifetime of some of you alive today. It is clear that we are entering a new space age. We are standing at the threshold (开端) of a new era. Human colonization and moving to other planets is no longer science fiction, and it can be science fact.” Hawking advised the audience to move to other worlds because we are running out of space.
语篇解读：文章引用了世界知名物理学及天文学家霍金的观点，阐明了人类必须离开地球在太空中找一处新家的原因。
8．According to Hawking, what is the first step for humans to spread out into space
A．To send people to Mars.
B．To build a lunar base.
C．To send astronauts to the Moon.
D．To change the future of humanity.
解析：选C 细节理解题。由文章第三段的第一句可知，人类要向太空扩展应在2020年之前把宇航员送到月球以重启太空探索，故选C项。
9．The underlined word “drained” in Paragraph 5 can be replaced by “________”．
A．speeded up B．stored
C．used up D．explored
解析：选C 词义猜测题。由该词前面的“natural resources”和后面的“at an alarming rate”可以推断出，drain在这里是“用完，耗尽”的意思，故选C项。
10．What is Hawking's attitude towards the Earth's future
A．Pessimistic. B．Confused.
C．Positive. D．Indifferent.
解析：选A 观点态度题。由文章中反复出现的“warned”以及第五段的内容可以推断出，霍金对地球的未来持悲观的态度，这也是他提出人类要离开地球的原因，故选A项。
