文档内容
Unit7 What’s the highest mountain in the world？
Unit 7 课时 5 Section B（3a-Self Check)
1. To learn about whales and why they need to be protected
2. To practice the use of the comparatives and superlatives of adjectives
(一)数据描述类短语
1. 550米深_____________________
2.8, 844米高_____________________
[来源:Zxxk.Com]
3. 2, 400公里长_____________________
4.960万平方公里_____________________
5. 10千克_____________________
6.300年历史_____________________
(二)含最高级的短语
1. 最长/短的河流_____________________
2. 最大/小的沙漠_____________________
3. 最重/轻的熊猫_____________________
4. 最多/少的竹子_____________________
5. 最危险的运动_____________________
6. 最普遍的问题_____________________
7. 最著名的部分_____________________
8. 最深的咸水湖_____________________
9. 最高的山脉_____________________
10. 最多的人口_____________________
(三)其他短语
1. 每两年_____________________
2. ……的重要性_____________________
3. 濒危动物_____________________
4. 就我所知_____________________
5. 水污染_____________________6. 主要的原因之一______________________
7. 长城之旅_____________________
8. 登山_____________________
9. 出生时_____________________
10. 到达(某数量、程度等)；至多有；不多于_____________________
11. 绊倒_____________________
12. 大约_____________________
答案：
一、词汇积累
(一)1. 550 meters deep 2. 8, 844 meters high 3. 2, 400 kilometers long
4. 9,600,000 square kilometers 5.10 kilos 6. 300 years of history
(二) 1. the longest/ shortest river 2. the largest/ smallest desert 3. the heaviest/ lightest panda
4. the most/ least bamboo 5. the most dangerous sport 6. the most popular question
7. the most famous part 8. the deepest salt lake 9. the highest mountain
10. the biggest population
(三)1. every two years 2. the importance of... 3. endangered animals
4. as far as I know 5. water pollution 6. one of the main reasons
7. Great Wall Tour 8. mountain climbing 9. at birth 10. up to
11. fall over 12. or so
1. 形容词和副词的比较等级
2. 单元写作
形容词和副词的比较等级
英语中的形容词和副词常用三种形式来表达事物的等级差别，分别是原级、比较级和最高级。
一、形容词和副词的比较级、最高级的构成
1.规则变化类别 构成 图解助记
一般在词尾加__-er___或__ -est _ _
以字母 e 结尾加__-r___或__-st
__
单音节词 以重读闭音节结尾，如末尾只有
和部分双 一个辅音字母(辅元辅)，则__双
音节词 写末尾辅音字母再加__-er___或
__-est___
以“辅音字母+y”结尾的词，变
__y___为__i___再加__-er___或
__-est___
多音节词
所有多音节和部分双音节词，在
和部分双
词前加__more__或__most__
音节词
2.不规则变 化 （ 补 全
表格）
原级 比较级 最高级 原级 比较级 最高级
good/well better best farther farthest
far
bad/badly/ill worse worst further furthest
many/much more most older oldest
old
little less least elder eldest
二、形容词和副词比较等级的用法
1.原级的用法和句式
两者的同级比较用“as+形容词和副词的原级+as”（否定用“not + as/so +形容词或副词的原级+ as”）
Eg.This ruler is as long as that one. 这把尺子和那把尺子一样长。
Jim is not as/so tall as Tom. 吉姆不如汤姆高。
2.比较级的句式和用法
句式和用法 示例
“A+谓语动词+比较级+ than +B”用于两者之 You are taller than your brother. 你比你弟弟高。
间的比较，表示其中一个比另一个更…… He jumped higher than you. 他比你跳得高。
“比较级+ and +比较级”表示事物本身程度 He is running faster and faster. 他跑得越来越快。The city is becoming more and more beautiful.
的逐渐变化，意为“ 越来越…… ”
这个城市变得越来越漂亮了。
“the +比较级...，the +比较级...”表示一方程度
The more you eat, the fatter you will be.
的变化随着另一方的变化而平行变化，意为
你吃得越多，就会越胖。
“ 越……，就越…… ”
“Which/Who +系动词+比较级，A or B?”表示 Which sweater is cheaper, the red one or the blue one?
两个人或事物中哪一个/谁更…… 哪件毛衣更便宜，红色的还是蓝色的？
“A+系动词+ the +比较级+ of the two（+复数 Mary is the taller of the two girls.
名词）”表示两者中比较……的 玛丽是两个女孩中较高的。
【拓展延伸】
（1）修饰形容词或副词的比较级可以用 much, a lot, a little, a bit, even, far等，但不能用very, so, too等修
饰。
【记忆口诀】两多（much, a lot）两少（a little, a bit）一甚至（even），还有一个远（far）去了。
Eg.This story is much more interesting than that one. 这个故事比那个有趣得多。
（2）在比较结构中，被比较的事物应是同等成分，常用that或those代替前面的名词。
Eg.The workers in that factory are fewer than those in our factory.那个工厂的工人比我们工厂的工人少。
3.最高级的句式和用法
句式和用法 示例
She is the youngest in our class.
“the +最高级+ in/of...”，其中in后常跟表示组
她是我们班里年龄最小的。
织、团体之类的集体名词；of后跟名词或代
She is the youngest of the students.
词与句子的主语属于同一个概念范畴
她是学生中年龄最小的。
“Which/Who +系动词+ the +最高级，A，B or Which is the biggest, the sun, the moon or the earth?
C?”表示三个人或事物中哪一个/谁最…… 太阳、月球和地球，哪一个最大？
“one of the +最高级+复数名词”表示“最…… Shanghai is one of the most beautiful cities in China.
的……之一” 上海是中国最美丽的城市之一。
【词汇积累】
◆开头句
①Welcome to China！I’m glad to be your guide today.
②Now let me tell you something about pandas.
③Have you seen tigers in zoos？I think the tiger is one of the most popular animals in the zoo.
④Now the number of them is becoming smaller and smaller.Why. Here are two main reasons.
◆中间句
①Pandas are white and black. They are very cute and friendly to people. They feed on bamboo.②They mainly live in some forests and mountains.
③People cut down so many trees that the tigers have no places to live in and can’t find enough food.
④People hunt and kill them for their beautiful fur to make clothes or other things.
◆结尾句
①People started to realize the importance of protecting the environment.
②In my opinion，we must stop people from killing animals.
③Remember saving the animals means saving the earth and ourselves.
◆谚语积累
1. When the wells dry，we know the worth of water.
井枯方知水珍贵。
2. Protect wildlife and coexist with nature.
保护野生动物，人与自然共存。
3.Protecting wildlife means protecting human beings themselves!
保护野生动物就是保护人类自己！
4. Every life deserves respect. Please love animals.
每一个生命都值得尊重。请爱护动物。
【话题范文剖析】
本周末有一批外国游客要来动物园参观大熊猫，假如你是他们的导游，请你根据下面的要点提示写一篇发
言稿，向这些游客简要地介绍一下大熊猫，要求不少于80词。要点提示：
1．大熊猫的外貌及性格特点是什么？
2．大熊猫以什么为食？它们主要生活在哪些地区？
3．大熊猫的生存现状是什么样的？中国政府为了保护大熊猫采取了哪些措施？
参考词汇：feed on以...为食；the number of...的数目
要求：
1．词数：80左右；
2．书写工整，句式规范，条理清楚，标点符号使用正确。
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________◆◆范文欣赏
Ladies and gentlemen，
Welcome to China！I'm glad to be your guide today.We will see lovely pandas soon.Now let me tell you
something about pandas.Pandas are white and black.They are very cute and friendly to people.They feed on
bamboo.They mainly live in some forests and mountains in Sichuan Province，Gansu Province and Shaanxi
Province.Now the number of pandas is less than 3，000，because people cut down many trees andthey can't find
enough food and don't have enough space to live in.So the Chinese government is thinking about ways to protect
them，such as building research bases and teaching people about the importance of saving pandas.Besides these，
the government is also planting more bamboo trees so there will be more forests for pandas to live in.
1. To learn about whales and why they need to be protected
2. To practice the use of the comparatives and superlatives of adjectives
一、单项选择
1．—What’s your idea about family education?
—________ kids learn to be independent, ________ it is for their future.
A．The early; the better B．The earlier; the earlier C．The earlier; the better
2．I think skiing is ________ than running.
A．exciting B．more exciting C．most exciting D．the most exciting
3．—Could you tell me why you learn English so well?
—It’s very easy, ________you study, ________ grades you will get.
A．Harder; better B．The harder; better C．The harder; the better.
4．—Paul, do you prefer weekdays or weekends?
—Weekdays, of course. I’m ________ on weekends.
A．busy B．much busier C．more busier D．the busier
5．—The doctor tells me not to eat too much junk food, but I find it hard.
—The doctor is right.________ junk food you eat, ________ you will be.A．The more; the healthier B．The most; the healthiest C．The less; the healthier D．
The least; the healthiest
6．As millions of students’ dream university, Xiamen University is one of ______ universities in China.
A．beautiful B．more beautiful C．the most beautiful
7．—What do you think of the crime drama The Knockour (《狂飙》)?
—Incomparable! I’ve never seen ________ one.
A．a more wonderful B．the most wonderful
C．so a wonderful D．such wonderful
8．The Yellow River is the second ________ one in China.
A．long B．longer C．longest
9．The Lotus Park is ________ place in Qingyang on weekends. Because many families go there with their young
children and lots of old people like to take walks there, too.
A．the good B．the well C．the better D．the best
10．Endless Journey is really a wonderful film. I’ve never seen __________ one like it.
A．better B．a better C．best D．the best
二、完型填空
Most polar bears (北极熊) could disappear by the end of the century because of global warming, scientists say.
According to a study in Nature Climate (气候) Change, the number of most polar bears will 11 rapidly (快
速地) by 2080. There are two reasons. One is that the sea ice is melting (融化). Polar bears catch seals (海豹) to eat
on the ice. 12 ice, they have to stay on land. But there is no 13 food on land to support so many polar
bears. The animals could die from hunger. The other reason is that mother bears may not be fat enough to 14 milk for
their babies, so some bears could stop having babies.
Polar bears are 15 land animals that eat meat on the planet. They help control other kinds of animals.
Losing them would break the balance of their living place.
The Arctic is the 16 to about 25,000 polar bears. Arctic sea ice usually melts in spring and summer, then
grows in winter. But now, the 17 is taking longer to grow back. Scientists say the Arctic is warming twice as
fast as the rest of the planet.
The study also shows 18 it is possible to slow Arctic melting. Greenhouse gases (温室气体) could lead to
climate change. In order to avoid creating greenhouse gases, the world should try to stop burning coal and riding in
cars.
Saving the bears is 19 us. Holland, one of the writers of the study, says, “I believe there is hope, but
humans need to act 20 to make that hope come true.” Let’s take action to protect our earth and save polar
bears.
11．A．develop B．fall C．rise D．improve
12．A．Through B．Across C．Without D．Except
13．A．enough B．good C．sweet D．delicious
14．A．protect B．progress C．prepare D．produce(生产)15．A．the largest B．the loveliest C．the simplest D．the luckiest
16．A．room B．family C．house D．home
17．A．sea B．ice C．plant D．animal
18．A．if B．when C．that D．whether
19．A．up to B．hard on C．good with D．thankful to
20．A．widely B．clearly C．quickly D．quietly
三、阅读理解
Many children go to the zoo on October 4 to see elephants, monkeys and tigers because that day is World Animal
Day.
Now, more children like animals and want to make friends with them. In the zoo, they learn about animal life.
They don’t need to go out to show their love of animals. They have pets (宠物) at home.
Mark is a middle school student. He has a black cat. He gives it milk to drink and meat to eat. The cat is his true
friend. Jane is also a middle school student. She has two tortoises. They are as big as her hand. Every day, she
changes (换) the water for them. She likes to watch them.
21．October 4 is ________.
A．World Water Day B．World Air Day C．World Animal Day
22．Lots of kids like to go to the zoo because they want to ________.
A．show their love of animals B．learn how to look after animals C．
learn about animal life
23．Mark’s pet is a________.
A．cat B．dog C．tortoise
24．Which of the following is NOT true?
A．More and more children like to make friends with animals these days.
B．Mark’s pet likes to drink milk.
C．Children must go to the zoo to show their love of animals.
25．How big are Jane’s pets?
A．I don’t know. B．As big as her hand. C．Very small.
四、短文填空
阅读下面短文，在空白外填入一个适当的词，或填入括号中所给的单词的正确形式。
Sperm whales live in every ocean on the planet. Their large heads make 26 (they) different from other
whales. Here are some fun facts about sperm whales.
They have 27 (big) heads of all the animals in the world. And they are the loudest animals. They
make special high sounds to send information to one another from 28 (hundred) of kilometers away.
Sperm whales sleep up straight in the water. It looks like they’re 29 (stand) in the sea. To keep warm,they need to move very often. 30 (scientist) find that they sleep for no more than two hours every day.
Before 1705, there were about 850 thousand sperm whales in the sea. 31 , the number fell to 250
thousand in the 1990s because people killed them for money. In 32 nineteenth century, a ship called Essex
was hit by a sperm whale when people tried to catch it. Herman Melville, a famous writer, heard about that and 33
(decide) to write down the story. Later, the book Moby Dick came out.
五、书面表达
34．请以“An animal in danger”为题，写一篇英语短文，介绍一种处境处于危险中的动物，内容要点如下：
●What is the animal?
●Where does it live?
●What does it feed on?
●Why is it in danger?
●How difficult is the situation?
●What can we do to save it?
要求：
1、短文须包含以上主要内容，80词左右；
2、结构完整，语句通顺正确，上下文连贯，书写认真。
An animal in danger
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
___________________________________________________________________
参考答案：
1．C
【详解】句意：——你对家庭教育有什么看法？——孩子越早学会独立，对他们的未来就越好。
考查比较级用法。earlier“更早”；better“更好”。根据“kids learn to be independent…it is for their future.”可
知是指孩子越早学会独立，对他们的未来就越好。“the+比较级，the+比较级”表示“越……，越……”，
故选C。
2．B
【详解】句意：我认为滑雪比跑步更刺激。
考查比较级。根据“than”可知此处用比较级more exciting。故选B。
3．C
【详解】句意：——你能告诉我为什么你英语学得这么好吗？ ——这很简单。你学习越努力，你的成绩
就会越好。
考查比较级句型。harder更努力地；better更好的。“the+比较级，the+比较级”表示“越……，就越……”，C选项符合。故选C。
4．B
【详解】句意：——保罗，你喜欢工作日还是周末？——当然是工作日。我周末要忙得多。
考查比较级。根据“Paul, do you prefer weekdays or weekends?”及“I’m ... on weekends.”可知，此处是将周
末与工作日进行比较，用比较级，修饰比较级用much。故选B。
5．C
【详解】句意：——医生告诉我不要吃太多的垃圾食品，但我觉得很难。——医生是对的。你吃的垃圾食
品越少，你就越健康。
考查比较级。the+比较级……，the+比较级，表示“越……，就越……”。根据“The doctor is right.”可知，
赞同不要吃太多的垃圾食品，即吃的垃圾食品越少，你就会越健康。故选C。
6．C
【详解】句意：作为数百万学生的梦想大学，厦门大学是中国最漂亮的大学之一。
考查形容词最高级。beautiful漂亮的，原级；more beautiful更漂亮的，比较级；the most beautiful最漂亮的，
最高级。根据“one of+形容词最高级+名词复数”可知，横线上是最高级。故选C。
7．A
【详解】句意：——你觉得犯罪剧《狂飙》怎么样？——无可比拟的！我从没见过比这更棒的。
考查比较级。a more wonderful一个更棒的；the most wonderful最棒的；so a wonderful表达错误，排除C；
such wonderful这样美好的。根据“I’ve never seen”可知，此处是指从未看过比《狂飙》更精彩的电视剧，
用“否定词+比较级”表达最高级的概念。故选A。
8．C
【详解】句意：黄河是中国第二长的河流。
考查形容词最高级。long长，原形；longer比较级；longest最高级。根据“the second…one in China”可知
是在中国范围内，因此需要使用最高级，故选C。
9．D
【详解】句意：在庆阳的周末，莲花公园是最好的地方。因为许多家庭带着小孩去那里，许多老人也喜欢
在那里散步。
考查形容词的最高级。the good“好的”，形容词原级；the well“好地”，副词原级；the better“更好的”；
the best“最好的”。根据“The Lotus Park is...place in Qingyang on weekends.”可知，在庆阳的周末，莲花公
园是最好的去处。空处应是形容词的最高级形式the best，作定语，修饰place。故选D。
10．B
【详解】句意：《三大队》是一部精彩的电影。我从没看过比这更好的。
考查形容词比较级。better更好的；a better一个更好的；best最好的；the best最好的，最高级前有the。根
据“never seen”可知，否定词+比较级表达最高级的含义，结合“one”，比较级前需要有冠词a，故选B。
11．B 12．C 13．A 14．D 15．A 16．D 17．B 18．C 19．A 20．C
【导语】本文介绍了北极熊所面临的危险情况，造成这种情况的原因以及解决办法。11．句意：根据《自然气候变化》上的一项研究，到2080年，大多数北极熊的数量将迅速下降。
develop培养；fall下降；rise增长，上升；improve提高。根据“Most polar bears (北极熊) could disappear
by the end of the century because of global warming, scientists say.”可知，因为全球变暖，北极熊的数量是成下
降的趋势，故选B。
12．句意：没有冰，它们必须要待在陆地上。
Through通过（从内部穿过）；Across穿过（从外部穿过）；Without没有；Except除了。根据“Polar
bears catch seals (海豹) to eat on the ice”可知，它们要在冰上捕捉海豹，没有了冰它们就要待在陆地上，故
选C。
13．句意：但陆地上没有足够的食物养活这么多熊。
enough足够的；good好的；sweet甜美的；delicious美味的。根据“The animals could die from hunger”可知，
并没有足够的食物，故选A。
14．句意：另一个原因是熊妈妈可能不够胖，无法为宝宝产奶。
protect保护；progress进步；prepare准备；produce生产。根据“mother bears may not be fat enough to …
milk for their babies”可知，熊妈妈无法为宝宝产奶，故选D。
15．句意：北极熊是地球上最大的陆地食肉动物。
the largest最大的；the loveliest最可爱的；the simplest最简单的；the luckiest最幸运的。根据“Polar bears
are … land animals”及常识，可知，北极熊是陆地上最大的食肉动物，故选A。
16．句意：北极是大约25000只北极熊的家园。
room房间；family家人；house房子；home家。固定搭配：the home to“……的家园”，故选D。
17．句意：但是现在，冰需要更长的时间才能恢复。
sea大海；ice冰；plant植物；animal动物。根据“Arctic sea ice usually melts in spring and summer, then
grows in winter”及“But now”可知，现在冰恢复的速度更慢了，故选B。
18． 句意：这项研究还表明，减缓北极融化是可能的。
if如果；when何时；that无实际意义；whether是否。此句是一个宾语从句，从句不缺任何成分，且是陈述
一件事情，用that引导宾语从句，故选C。
19．句意：拯救熊就靠我们了。
be up to取决于；be hard on严厉对待；be good with与……和睦相处；be thankful to对……表示感谢。根据
“but humans need to act … to make that hope come true”可知，是否能拯救北极熊就看人类了，故选A。
20．句意：我认为还有希望，但是人类需要迅速行动来实现这个希望。
widely广泛地；clearly清楚地；quickly快速地；quietly安静地。拯救北极熊，阻止气候变暖，这都是迫在
眉睫，所以我们要快速地行动起来，故选C。
21．C 22．C 23．A 24．C 25．B
【导语】本文讲述了孩子们去游览动物园，以及他们各自也有宠物。
21．细节理解题。根据“Many children go to the zoo on October 4 to see elephants, monkeys and tigers because
that day is World Animal Day.”可知10月4日是世界动物日。故选C。
22．细节理解题。根据“Now, more children like animals and want to make friends with them. In the zoo, theylearn about animal life.”可知是他们想了解动物的生活。故选C。
23．细节理解题。根据“Mark is a middle school student. He has a black cat.”可知他的宠物是猫，故选A。
24．推理判断题。根据“They don’t need to go out to show their love of animals.”可知他们不需要去动物园来
表达他们对动物的热爱。故选C。
25．细节理解题。根据“They are as big as her hand.”可知和她手一样大，故选B。
26．them 27．the biggest 28．hundreds 29．standing 30．Scientists 31．However
32．the 33．decided
【导语】本文主要介绍抹香鲸。
26．句意：它们的大头使它们与其他鲸鱼不同。根据句子结构可知，空处为宾语，应用人称代词宾格形式。
故填them。
27．句意：它们的头是世界上所有动物中最大的。根据空后的“of all the animals in the world”可知，此处应
用形容词最高级形式，big是单音节单词，其最高级为the biggest。故填the biggest。
28．句意：它们发出特殊的高音，从数百公里外相互发送信息。hundreds of“成百上千，好几百”，固定词
组。故填hundreds。
29．句意：看起来它们好像站在海里。根据上文“Sperm whales sleep up straight in the water.”可知，此处表
示的是看起来它们好像站在海里，句子时态为现在进行时，空处应用现在分词形式。故填standing。
30．句意：科学家发现它们每天的睡眠时间不超过两个小时。根据空后的“find”是原形可知，此处应用名
词复数形式，句首首字母大写。故填Scientists。
31．句意：然而，在20世纪90年代，这一数字下降到了25万，因为人们为了钱而杀害了它们。根据空前
的“Before 1705, there were about 850 thousand sperm whales in the sea.”和空后的“the number fell to 250
thousand in the 1990s because people killed them for money”的句意可知，此处句意发生了转折，空后有逗号
隔开，应用however“然而”，句首首字母大写。故填However。
32．句意：19世纪，一艘名为埃塞克斯的船在人们试图捕获抹香鲸时被它撞了。世纪、年代前要加定冠词
the。故填the。
33．句意：著名作家赫尔曼·梅尔维尔听说了这件事，决定写下这个故事。根据句子结构和空前的“and”可
知，空处和“heard about”作并列谓语，所以应用动词过去式形式。故填decided。
34．例文
An animal in danger
Many animals are in danger because of human’s activities. South China tigers live in the forests and mountains
of South China. It feeds on meat and other small animals. Some people are killing them in order to make money. So
the number of tigers is becoming smaller in our country. It is terrible. And too many trees have been cut down.
Villages and farms are taking away their forests. The places where tigers used to live were destroyed. Tigers are in
danger of dying out. Our government should punish the hunters. We should try our best to make our earth pleasant
and peaceful, not only for human beings but also for animals.
【详解】[总体分析]
①题材：本文是一篇材料作文；②时态：时态以“一般现在时”和“现在进行时”为主；
③提示：根据提示问题介绍一种濒危的动物，注意要点齐全，可适当增添细节，以使行文连贯。
[写作步骤]
第一步，介绍哪种动物处于危险中、它们生活在哪里及它们以什么为食；
第二步，介绍它们为什么处于危险中及它们的处境；
第三步，介绍我们应该怎么做来拯救它们。
[亮点词汇]
①feed on以……为食
②the number of……的数量
③take away拿走
④in order to为了
[高分句型]
The places where tigers used to live were destroyed. (where引导定语从句)
