Unit 7 What's the highest mountain in the world? 知识点归纳及练习汇总（19页 含答案）

人教新目标八年级英语下册Unit7知识点归纳及练习汇总
谈论地理和大自然
—What is the highest mountain in the world?
—Qomolangma.
The Sahara is about 9,600,000 square kilometers in size.
重点
单词：population, tour, protect, include, succeed, illness, remain
短语：take in, in the face of, at birth, fall over
句型：
（1）The Yangtze River is about 6,300 kilometers long and the Yellow River is 5,464 kilometers long.
（2）Scientists say there are now fewer than 2,000 pandas living in the remaining forests.
难点
形容词和副词的比较级、最高级的回顾
一、单词领读
square n. 平方；正方形 meter n. 米；公尺
deep adj. 深的；纵深的 desert n. 沙漠
population n. 人口；人口数量 Asia n. 亚洲
wall n. 墙 tour n. 旅行
tourist n. 旅行者；观光者 ancient adj. 古代的；古老的
protect v. 保护；防护 wide adj. 宽的；宽阔的
paragraph n. 段；段落 thick adj. 厚的；浓的
include v. 包括；包含 condition n. 条件；状况
succeed v. 实现目标；成功 Japan n. 日本
achieve v. 达到；完成；成功 force n. 力量
nature n. 自然界；大自然 ocean n. 大海；海洋
weigh v. 有……重；重 bamboo n. 竹子
research n. 研究 awake adj. 醒着的
excitement n. 激动；兴奋 illness n. 疾病；病
adult adj. 成年的；成人的 remain v. 遗留；剩余
wild adj. 野生 government n. 政府；内阁
oil n. 油；食用油；石油 huge adj. 大的；极大的
二、重点单词
【单词学习】
1. population n. 人口；人口数量
它是一个集合名词，没有复数形式。当它作主语表示整体概念时，其后的谓语动词要用单数。如果指一个整体人口中有多少人是干什么的，则强调的是一个群体，是复数概念，这时谓语动词用复数。
The population of the village is about 4,000. 这个村庄大约有4,000人。
80% of the population of China are farmers. 中国百分之八十的人口是农民。
1. 表示人口“多”、“少”时要用large/ big和small来修饰population。
2. 提问有“多少人口”时用what或how large，而不用how many或how much。
The city has a large population. 这个城市人口很多。
What/ How large is the population of Beijing? 北京有多少人口？
The population of China is ___________ than _________ in Canada.
A. more; the one B. smaller; that C. larger; that D. more; that
答案：C
思路分析：表示人口“多”、“少”用large/ big, small 来修饰population；而中国人口在世界上名列首位，故本题中用larger。that代替the population，以避免重复。
2. tour n. 旅行；旅游
tour v. 在……旅行；观光；参观
tourist n. 观光者；旅行者；游客
They are planning on a foreign tour. 他们计划去国外旅游。
They toured Europe last year. 他们去年去欧洲观光了。
Last week a foreign tourist came to our village. 上周一名外国游客来到了我们村。
My family want __________ Qingdao this summer.
A. tour B. toured B. tours D. to tour
答案：D
思路分析：want 后接动词不定式作宾语，故选D项。句意为“我的家人这个夏天想去青岛旅行。”
3. protect v. 保护；防护
常用结构为：
protect…from保护……不受……侵害，from后常跟对公众或社会整体影响不太大的普通词语。
protect…against保护……不受……侵害，against后常接较大的事件或较重要的东西，如战争、灾害、骚扰、税款等。
protection n. 保护；防护
I want to put on more clothes to protect myself from cold. 我想多穿点衣服，以防受凉。
The government has done much to protect the dam against the possible flood.
政府花费了很大精力以防大坝受可能洪水的袭击。
Parents provide protection for their children. 父母给孩子们提供保护。
1. 苹果汁可以预防心脏病。
Apple juice can __________ __________ heart disease.
2. 我们应该制定关于动物保护的规则。
We should make rules on _________ _________.
答案：1. protect from 2. animal protection
4. include v. 包括；包含
常作及物动词，指整体中包含明确说出的某些部分，有时不一定举出所包含的全部内容。
including prep. 包含；包括
included adj. 包括在内的，常用于名词之后作后置定语。
The price includes both apple and pear. 价格包含苹果和梨在内。
There are 45 students in our class, including 20 girls.
在我们班里有45名学生，包括20名女生。
Everybody laughed, mom included. 所有的人，包括妈妈在内，都笑了。
用including, include, included填空
The tour __________ a visit to the Science Museum.
答案：includes
5. succeed v. 实现目标；成功
其后常接in sth./doing sth.，意为“在某方面/做某事成功”。
success n. 成功；成就，不可数名词；成功的人（或事物），可数名词。
successful adj. 成功的，作定语或表语。
I hope you will succeed in your studies. 我希望你在学习上成功。
The policeman has finally succeeded （in） solving the problem.
警察最后成功地解决了这个问题。
He has had great success. 他已取得很大成功。
His new book was a great success. 他的新书是一个巨大的成功。
I’m sure you’ll be successful. 我确信你会成功的。
He succeeded _________ the English exam.
A. pass B. to pass C. in passing D. of passing
答案：C
思路分析：succeed in doing sth.意为“做某事成功”。句意为“他成功地通过了英语考试”。
6. illness n. 疾病
形容词ill+ness后缀构成。
What’s his illness? 他有什么病？
ill adj. 生病的；不健康的，仅用作表语，不能作定语。
sick adj. 患病的，既可作表语（美式英语中），又可作定语（英式英语中）。
She was very ill in bed yesterday. 她昨天重病卧床。
Lucy’s mother is sick/ill in hospital. She’ll visit her sick mother after school.
露西的妈妈生病住院了。放学后她要去看望生病的妈妈。
The boy can’t come to school because of his __________.
A. ill B. sick C. illness D. illing
答案：C
思路分析：because of是介词短语，故后接名词；句意为“这男孩不能来上学是因为他的疾病”，故用illness，C项符合句意。A, B两项都是形容词；D项错误。
7. remain v. 遗留；剩余
作连系动词，后接形容词、名词、分词或介词短语。
还可作不及物动词，相当于stay，“停留；留下”。
A few apples remained on the trees. 树上还有几个苹果。
They all wished me to remain. 他们都希望我留下来。
系动词除be外，还有：
六“变化”：get, turn, become, grow, go, come
六“感觉”：look, seem, sound, feel, taste, smell
三“保持”：keep, stay, remain
我将留在这里。
I _____ _____here.
答案：will remain
【即学即练】
1. __________ the population of Guangdong Province?
A. What’s B. What number is C. How much is D. How many are
2. We should try our best _________ children from danger．
A. protect B. to protect C. provide D. to provide
3. The band played many songs, ________ some of my favorites.
A. include B. included C. including D. to include
4. Miss Zhou is very popular in our school. She is a __________ teacher.
A. succeed B. success C. successful D. succeeded
5. The death of the emperor Kangxi ________ a mystery.
A. gives B. remains C. lives D. continues
6. The child is ________（illness）, you should take him to the hospital.
7. Some _________（tour） come to our town to enjoy the winter dates.
答案：1-5 ABCCB 6. ill 7. tourists
思路分析：
1. 本题考查population的用法。当询问人口数量时用what或how large，浏览各选项可知A项正确。句意为“广东省的人口是多少？”。
2. try one’s best意为“尽某人最大努力”，后接动词不定式，故排除A, C两项；protect意为“保护；防护”；provide意为“提供；供给”；根据句意“我们应当尽力保护孩子，使他们免受伤害。”可知选B项。
3. 本句有谓语动词played，故排除A项和D项；included作形容词，放在名词后，排除B项。句意为“这个乐队演奏了许多歌曲，包括几首我最喜爱的”。
4. teacher是名词，故用形容词修饰；A，D两项是动词；B项是名词。句意为“周老师在我们学校里很受欢迎。她是一名成功的教师。”
5. A项意为“给”；B项意为“留下”；C项意为“生活；居住”；D项意为“继续”；
句意为“康熙皇帝的死留下一个谜”。A, C, D三项与句意不符，故选B项。
三、重点短语
【短语学习】
1. take in吸入；吞入（体内）
后接名词、名词短语作宾语。
Fish take in oxygen through their gills. 鱼通过腮吸入氧气。
take up 学着做；开始做
take care of 照顾；照料
take risks 冒险
When did you take up this hobby? 你什么时候开始有这种爱好的？
The little girl can take care of herself. 这个小女孩能自己照顾自己。
We’re brave enough to take risks. 我们足够勇敢去冒险。
On weekends they usually drive to the countryside and ________ the fresh air.
A. take in B. take up C. take care of D. take risks
答案：A
思路分析：根据句意“周末他们通常开车去农村呼吸新鲜空气。”可知选A项。A项意为“吸入；吞入（体内）; B项意为 “开始做”；C项意为“照顾；照料”；D项意为“冒险”。
2. in the face of面对（困难、问题等）
在此短语中，face是名词。还可构成短语：
face to face 面对面
make a face/ faces 做鬼脸
face还可作动词，表示“面对，面向”。构成短语：be faced with 面临
He never shows any fear in the face of danger. 在危险面前他从不畏惧。
They sat face to face and said nothing. 他们面对面坐着，不说话。
The children made faces at one another. 孩子们互相做鬼脸。
They are all faced with the same problem. 他们都面临着同样的问题。
What could they do _________ difficulties?
A. are faced with B. face to face C. in the face of D. make a face
答案：C
思路分析：A项意为“面临”；B项意为“面对面”；C项意为“面对（困难、问题等）”；D项意为“做鬼脸”；根据句意“在面对困难时，他们能做什么呢？”可知B，D不正确；又因句中已有谓语动词，故可排除A项，所以选C。
3. at birth出生时
相当于when sb. was born。
Man’s nature at birth is good. 人之初，性本善。
His son was very lovely at birth. = His son was very lovely when he was born.
他儿子出生时很可爱。
熊猫出生时多重？
How heavy does a panda weigh ________ _________?
答案：at birth
4. fall over摔倒
强调向前摔倒。
She fell over and broke her leg. 她摔伤了腿。
fall down 摔倒，强调滑倒、倒下；
fall off 从……上掉下来
fall asleep 睡着；进入梦乡
fall in love with 爱上……
If people run across the road，they may fall down.
如果人们跑着过马路的话，他们可能会摔倒。
Soon the boy fell asleep. 很快这男孩睡着了。
He fell in love with the small village. 他爱上了这个小村庄。
If you ride your bike on the snow ground too fast, you will _________.
A. fall over B. fall asleep C. fell over D. fell asleep
答案：A
思路分析：will后接动词原形，故排除C，D两项；A项意为“摔倒”；B项意为“睡着”；根据句意“如果你在雪地上骑车太快的话，你将会摔倒”可知A项合适。
【即学即练】
根据汉语意思完成句子
1. 在面对困难时不要害怕。
Don’t be afraid _______ the _________ _________the difficulties.
2. 老人们喜欢早起去呼吸新鲜空气。
The old men like getting up early to ________ ________fresh air.
3. 他出生时没哭。
He didn’t cry ________ _________.
4. 这小男孩常常摔倒，然后大哭。
The little boy often ________ ________ and cries loudly.
答案：1. in; face of 2. take in 3. at birth 4. falls over
四、重点句型
【句型学习】
1. The Yangtze River is about 6,300 kilometers long and the Yellow River is 5,464 kilometers long. 长江大约6300公里长，黄河5464公里长。
（1）and连接的并列句的分句中都使用了结构：“基数词+量词（单位名词）+形容词”，在句中作表语。
The classroom is 15 meters long. 这教室15米长。
英语中长、宽、高的表达方式可用“数字+量词（复数）+long/wide/high”结构，可作表语，也可作后置定语。长、宽、高还可用复合形容词，即“数字-量词（单数）-long/wide/high”结构，中间为连字符，常用作前置定语。
This building is 20 meters high. 这座建筑物20米高。
This is a building 20 meters high. 这是一座20米高的建筑物。
This is a 20-meter-high building. 这是一座20米高的建筑物。
（2）6300，5464是多位数，多位数的读法：多位数在此指的是千位数以上的基数词，从个位数起，向前数，每三位数加一个逗号。第一个逗号前的数字加thousand千；第二个逗号前的数字加million百万；第三个逗号前的数字加billion十亿。逗号中间按三位数读。
例如：14，300，356，200读作：
fourteen billion, three hundred million, three hundred and fifty-six thousand, two hundred.
1. This is a _________river and that river is _________.
A. 200-meter-long; 300 meter long B. 200-meter-long; 300 meters long
C. 200-meters-long; 300 meters long D. 200 meters long; 300-meter-long
答案：B
思路分析：浏览题干可知第一空作前置定语，故用“数字+量词（单数）+long/wide/high”结构，中间用连字符连接，排除C，D两项；后一空在句中作表语，用“数字+量词（复数）+long/wide/high”结构，排除A项。句意为 “这是一条200米长的河流，那条河流300米长”。
2. 832,154,968 is read as __________.
A. eight hundred and thirty-two million, one hundred and fifty-four thousand, nine hundred and sixty-eight
B. eight hundred and thirty two million, one hundred and fifty four thousand, nine hundred and sixty-eight
C. eight hundred and thirty-two million, one hundred and fifty-four thousand, nine hundred sixty-eight
答案：A
思路分析：要读的数中间有两个逗号，第一个逗号前的数字加thousand；第二个加million；各逗号间的三位数中，十位数和个位数间的“-”不能省，故排除C项；D项中最后的百位数和十位数之间少了and。
2. Scientists say there are now fewer than 2,000 pandas living in the remaining forests.
科学家说在现存的森林当中熊猫的数量少于2000只。
本句是复合句，say后是省略了引导词that的宾语从句。fewer是比较级。用于两者间作比较。
特别注意其特殊用法：
1. “比较级+and+比较级”表示“越来越（怎么样）”；多音节比较级用“more and more +原级”表达。
2. “The+比较级+句子，the+比较级+句子”表示“越（怎么样）就越（怎么样）”。
3. “the+比较级+of the two”表示“两个中比较……的”。
4. 倍数表达：
①倍数+as +原级+as +…，前者是后者的多少倍。
②倍数+比较级+than+…，前者比后者……几倍。
When autumn comes, the weather is getting cooler and cooler.
当秋天来临，天气变得越来越凉爽了。
Our school is becoming more and more beautiful. 我们的学校变得越来越美丽了。
The harder you work, the cleverer you will be. 你越努力学习，你就越聪明。
Lucy is the taller of the two girls. 露西是两个女孩中较高的一个。
Your garden is three times as big as ours. 你们的花园是我们的三倍大。
His house is three times bigger than mine. 他的房子比我的大三倍。
His father is ________ as he.
A. twice as old B. as twice old C. twice as older D. as twice older
答案：A
思路分析：浏览题干和选项可知句意为“他爸爸的年纪是他的两倍大”，用“倍数+as +原级+as +…”表达，故选A项。
【即学即练】
1. 老师让我们写一篇300词的作文。
The teacher asked us to write a _________ composition.
2. 这男孩九岁了。
The boy is _______ ________ ________.
3. 我们的英语老师在我们学校越来越受欢迎了。
Our English teacher is ________ and _______ ________ in our school.
4. 你们的教室比我们的大两倍。
Your classroom is _________ ________ than ours.
答案：1. three-hundred-word 2. nine years old 3. more; more popular 4. twice bigger
【课文朗读】
Section B 2b
It is 8:30 a.m. at the Chengdu Research Base. Lin Wei and the other panda keepers are preparing the milk for the baby pandas’ breakfast. At 9:00 a.m., they find that most of the babies are already awake and hungry. When the babies see the keepers, they run over with excitement and some of them even walk into their friends and fall over!
“They’re so cute and lovely. I take care of them like they’re my own babies. I wash, feed and play with them every day. They’re very special to me.”
Lin Wei loves her job, but it is a difficult one.
Pandas do not have many babies, maybe one every two years. The babies often die from illnesses and do not live very long. Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo. Many years ago, there were a lot more bamboo forests and pandas in China than there are now. But then humans started to cut down the forests, and there was less bamboo for the pandas. Scientists say there are now fewer than 2,000 pandas living in the remaining forests. Another 200 or so live in zoos or research centers in China and other countries.
An education problem in Chengdu teaches children in cities about pandas and other endangered animals. They send people to schools to tell children about the importance of saving these animals. The children sing songs or make artwork about pandas and other wild animals. Teaching children is one way to help save pandas. The Chinese government is also planting more bamboo trees so there will be more forests for pandas to live in. We all hope that in the future there will be a lot more pandas than now.
Units 6-7 语法归纳
1. 学习从属连词unless, as soon as, so…that的用法；
2. 学习多位数的读法；
3. 学习形容词和副词的比较等级；
思考问题一：so …that和such …that有什么异同？
思考问题二：你如何用英语读数字689, 645, 329, 120？
思考问题三：形容词和副词的比较级和最高级的变化中，many/much, good/well, bad/ill/badly, little, old, far的比较级和最高级是什么？
（答题时间：40分钟）
下册Unit 7 What’s the highest mountain in the world? 重点单词
Ⅰ. 英汉互译。
1. 1,025 meters deep ________ 2. 最古老的国家之一 ________
3. ancient emperors ________ 4. 正如你所看到的___________
5. as far as I know _________ 6. 吸入；吞入（身体）________
7. give up trying _________ 8. 面对（问题、困难）_________
Ⅱ. 根据句意和首字母提示完成单词。
1. The baby panda w________ only 0.2 kilos.
2. I was still a _____ when it was 12:00 last night.
3. The boys shouted with e______ when they won the basketball match.
4. Our g_______ often thinks about doing something good to people.
5. Now the price of the o______ is rising.
Ⅲ. 单项选择。
1. One third of the population here _______ workers.
A. is B. are C. was D. be
2. I heard two _______ got lost in their _______.
A. tours; tour B. tourists; tour C. tourist; tourist D. tours; tourist
3. Put on your sunglasses. They can ______ your eyes from the sunlight.
A. protect B. compare C. throw D. push
4. His dream of becoming a football player _______last year. Now he is the best player on the team.
A. succeeded B. achieved C. came true D. came back
5. At last, our classmates succeeded ________ over the fence.
A. at jumping B. to jump C. in jumping D. jumped
6. The town was badly destroyed in the war, but the library ________.
A. stood B. lay C. kept D. remained
7. —Is the baby still ________?
—Yes. He is playing with his fingers.
A. wake B. awake C. sleep D. asleep
下册Unit 7 What’s the highest mountain in the world? 重点短语
Ⅰ. 根据汉语意思完成句子。
1. 你想减肥，就得少吃。
If you want to ______ ______, you have to eat less.
2. 放学了，只有几个学生留在教室里。
After school, only several students _______ in the classroom.
3. 医生，我女儿的病严重吗？
Doctor, is my daughter’s ______ ______?
4. 慢点跑！小心别摔倒！
Run slowly! Be careful not to ______ _______.
5. 面对这道难题你该怎么做？
What should you do ______ _______ _______ _______this problem?
Ⅱ. 句型转换。
1. When a baby panda was born, it couldn’t see.（改为同义句）
______ ______, a baby panda couldn’t see.
2. Lily is 1.76 meters tall. Maria is 1.73 meters tall.（合并为一句）
Lily is ______ _______ of the two girls.（改为同义句）
3. If you eat more, you will be fatter.（改为同义句）
The _____ you eat, the _____ you will be.
4. I think my brother will achieve his dream.（改为同义句）
I think my brother’s dream will ______ ______.
5. They all laughed, including my mother.（改为同义句）
They all laughed, my mother _______.
Ⅲ.完形填空。
Near the North Pole（北极） there are two seasons, winter and 1 . The winter nights are 2 . For more than two months, you can’t see 3 , even at noon. The summer 4 are long. For more than two months, the sun 5 sets, and there is no night.
The Eskimos（爱斯基摩人）live near the North Pole. They have 6 clothing. They make most of it themselves. They make it from the skins of animals. From skins, they make coats and hats and shoes. In this cold climate, trees can’t 7 . The Eskimos have to build their house from skins, earth, stones or snow. When they go hunting, they live in tents of skin. When they move, they 8 their tents with them. When they are out in a storm and can’t 9 , they build houses of snow. They leave these snow houses when the storm 10 .
1. A. spring B. summer C. autumn D. winter
2. A. long B. short C. hot D. cold
3. A. the star B. the stars C. the sun D. the moon
4. A. day B. days C. night D. nights
5. A. always B. often C. usually D. never
6. A. hot B. warm C. cold D. cool
7. A. to grow B. grows C. grow D. growing
8. A. bring B. take C. put D. carry
9. A. get back home B. get to home C. get to back home D. get back to home
10. A. was over B. is over C. were over D. would be over
下册Unit 7 What’s the highest mountain in the world? 重点句型
Ⅰ. 单项选择。
1. A _____girl named Dong Xinyi looked after her disabled father.
A. three-year-old B. three-years-old C. three years old D. three year old
2. —How amazing the noodle is!
—Yes, it is ______ and breaks the Guinness World Record as the longest handmade noodle.
A. 1704-meter-long B. 1704-meters-long
C. 1704 meter long D. 1704 meters long
3. An adult panda ______ more than a baby panda.
A. weight much time B. weighs many time
C. weights many times D. weighs many times
4. —_____ is the new square?
—It is 550 meters long and 350 meters wide.
A. How long B. How much C. How big D. How many
5. — The doctor told me not to eat too much, but I find it difficult.
—The doctor is right. ______ you eat, _______ you will be.
A. The less; the healthier B. The less; the more healthier
C. The more; the healthier D. The more; the more healthier
Ⅱ. 根据汉语意思完成下列句子。
1. 正如你们所看到的，古代的国王建了这座城墙。
______ you can see, the ancient emperor ______ the wall.
2. 在面对困难时，要保持冷静。
Keep calm ______ the _____ of difficulties.
3. 看到妈妈进来，小女孩兴奋地跳起来。
The little girl jumped ______ _______ when she saw her mother come in.
4. 请随便问关于考试的情况。
_______ free ______ ask anything about the exam.
5. 那个陌生人约莫有30来岁。
That stranger is thirty years old ______ _______.
Ⅲ. 阅读理解
Rivers are one of our most important natural resources（自然资源）. Many of the world’s great cities are located on rivers, and almost every country has at least one river flowing through it that plays an important part in the lives of its people.
Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India, the Ganges is great, but it is also important for transportation; ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeast Asia. The greatest of all for navigation（航海）, however, is the Amazon in Brail. It is so wide and so deep that large ships can go about two thousand miles upon it.
Besides transportation, rivers give food, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks. In order to increase the supply of water for crops, engineers sometimes build a dam across a river and let a lake form behind the dam. Then people can use the water not only to irrigate（灌溉） their fields but also to make electricity for their homes and industries.
However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits（利益） of this natural resource.
1. The greatest river for navigation is _________.
A. the Amazon B. the Nile C. the Mekong D. the Mississippi
2. Which is Wrong?
A. The Nile is in India.
B. Almost every country has at least one important river.
C. Many cities are located on rivers.
D. Rivers play an important part in the lives of people.
3. From a dam, people can use the water for________.
A. keeping the rivers clean
B. only making electricity
C. washing clothes
D. irrigation and making electricity
4. The water in the river is polluted because of _______.
A. people’s drinking water too much
B. people’s swimming in the river too much
C. chemicals and other materials
D. people’s building a dam across a river
5. The best title of the passage is _________.
A. Rivers in Cities B. The Importance of Rivers
C. Transportation D. Natural Resources
Ⅳ. 书面表达
根据下列提示写一篇文章，在此基础上可自由发挥。
1. 濒危动物正在加剧。
2. 为了动物的皮、毛，人们猎杀动物。
3. 大熊猫是濒危动物的代表。
4. 保护动物，人人有责。
下册Unit 7 Which is the highest mountain in the world? 重点单词
Ⅰ. 1. 1025米深 2. one of the oldest countries 3. 古代的皇帝 4. as you can see
5. 据我所知 6. take in 7. 放弃尝试 8. in the face of
Ⅱ. 1. weighs 2. awake 3.excitement 4. government 5. oil
Ⅲ. 1. B 解析：指一个整体人口中有多少人是干什么的，则强调的是一个群体，是复数概念，这时谓语动词用复数。
2. B 解析：two后接名词复数，排除C项；tour意为“旅行”；tourist意为“旅行者；游客”；根据句意“我听说两名游客在旅行途中迷路了”可知B项正确。
3. A 解析：A项意为“保护；防护”；B项意为“比较”；C项意为“扔；掷”；D项意为“推动；移动”；放在句中，只有A项合适。句意为“戴上你的太阳镜。它们可以保护你的眼睛不受阳光伤害”。
4.C 解析：题干中的主语是“梦想”，故排除A, B两项，它们的主语是人；D项意为“回来”，不合题意。只有C项意为“实现”，主语是梦想等。
5. C 解析：succeed 意为“成功；达到；完成”，后接（in） doing sth.，故选C项。句意为“最后，我们的同班同学成功地跳过了栅栏”。
6. D 解析：A项意为“矗立”；B项意为“躺”；C项意为“保存”；D项意为“留下”；句意为“这座城镇在战争中被严重地破坏了，但是图书馆留了下来”，故选D项。
7. B 解析：根据答语“是的。他在玩他的手指呢”可知“婴儿醒着”，排除C，D两项；根据is可知后用形容词awake，意为“醒着的”。
下册Unit 7 Which is the highest mountain in the world? 重点短语
Ⅰ. 1. lose weight 2. remained 3. illness serious 4. fall over 5. in the face of
Ⅱ. 1. At birth 2. the taller 3. more; fatter 4. come true 5. included
Ⅲ.
1. B 解析：在北极附近有两个季节，即：冬季和夏季。故选B项。
2. A 解析：根据下句“两个多月，你不能看见阳光，甚至是在中午”可知“冬天的夜很长”。
3. C 解析：根据“甚至在中午”可知是“太阳”。
4. B 解析：相对于“冬天的夜晚”自然是“夏季的白天”；根据are可知选C项。
5. D 解析：sets意为“落下”；根据后半句“没有夜晚”可知“太阳从不落下”。
6. B 解析：根据北极附近的天气寒冷可知“他们有暖和的衣服”。
7. C 解析：can’t是情态动词，故后接动词原形；句意为“在这种寒冷的气候中，树不能生长”。
8. B 解析：take sth. with sb. 意为“随身带着某物”；句意为“当他们离开时，他们带着帐篷”。
9. A 解析：get back意为“回来”；home是副词，其前不加介词to；get back home意为“回到家”。
10. B 解析：主句用的是一般现在时，故从句也用一般现在时，故选B项。
下册Unit 7 Which is the highest mountain in the world? 重点句型
Ⅰ. 1. A 解析：空处在句中作定语，修饰girl，故选A项。句意为“一个名叫董心怡的三岁女孩照顾着她残疾的爸爸”。
2. D 解析：根据系动词is可知空处在句中作表语，故用“数字+量词（复数）+形容词”结构，选项D符合。句意为“这面条太令人惊讶了！是的，它1704米长，作为最长的手工面条打破了吉尼斯世界记录”。
3. D 解析：句中缺少谓语动词，故用weigh的正确形式；weight是名词，意为“重量”；many后接可数名词复数，此处times意为“次数”，故选D项。句意为“一只成年熊猫比一只熊猫宝宝重许多倍”。
4. C 解析：根据答语“550米长和350米宽”可知问句询问“多大”。
5. A 解析：the +比较级…，the+比较级…，意为“越……就越……”；根据上句“医生告诉我不要吃太多”可知“你吃得越少就越健康”，排除C, D两项；healthy的比较级是healthier，故选A项。
Ⅱ. 1. As; built 2. in; face 3. in excitement 4. Feel; to 5. or so
Ⅲ. 1. A 解析：根据句子The greatest of all for navigation, however, is the Amazon in Brail.可知。
2. A 解析：尼罗河在埃及，不在印度。
3. D 解析：根据句子Then people can use the water not only to irrigate their fields but also to make electricity for their homes and industries. 可知。
4. C 解析：根据句子the water in the rivers becomes polluted with chemicals and other materials.可知。
5. B 解析：通读全文，可知本文讲述了河流的重要性。
Ⅳ.
There are more and more endangered animals at present, so how to protect them has been our most important task. It’s wrong for people to hunt animals for their meat and fur, for they are our good friends. We should protect them instead of killing them. The pandas, which are one of the endangered animals, live in the forests and live on bamboo leaves. They can just live safely in the natural protection zones. We should stop killing animals and protect them. It’s everyone’s duty to protect animals.