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Unit 7 What’s the highest mountain in the world？单元核心知识点全方
位精练 (Section B)
【单元核心知识点全方位精练(Section B)】含以下内容：
重点单词练习：本部分设置了“根据中文或首字母提示填写单词”，“用所给词的适当形式填空”，“一
词多义”，“单项选择”等练习。
重点短语练习：本部分设置了“短语英汉互译”，“选择短语填空”和“翻译句子”等练习。
重点句型练习：本部分设置了教材原句回译，仿写句子等练习。
综合技能练习：本部分围绕单元话题与阅读技能培养设置了语篇填空，完形填空和阅读理解等练习。
【重点单词练习】
一、根据中文或首字母提示填写单词
1. As I know, the biggest blue whale weighs(重量是) about 181,000 kilos.
2. A mother tiger can give birth(出生) to 3~5 baby tigers at a time.
3. I think an adult(成年人) must keep an eye on them at all times to make sure of their safety.
4. This chair is made of bamboo(竹子). And it is made in Shanghai.
5. We should take action to protect endangered(濒危的) animals.
6. The research(研究) shows that people throw thousands of plastic bags along this street every day.
7. The zoo keeper(饲养员) doesn’t allow smoking here.
8. I hardly drink coffee. It may make me awake(醒着的) the whole night.
9. The government(政府) set up new rules to protect wild(野生的)elephants in Yunnan last month.
10. With the price of the oil(油)rising, more and more people choose to buy new energy (能源) cars.
11. Drones (无人机) are very useful in many fields, including farming, video filming, and environmental
protection(保护).
12. In recent years, China has made huge(巨大的) progress in science and technology.
二、用所给词的适当形式填空(或根据句意填写适当的词)
1. We don’t think having little for breakfast is a good way to lose weight (weigh)
2. “Really? Interesting! Or aliens?” Sarah added with excitement(excite).
3. Her left eye became almost blind and her right eye could only see things 50cm away because of a serious
illness(ill).
4. In science, researchers(research) need to think of new ideas to find out things we don’t know.5. I was so amazed to see that the fishes here were two times(time) bigger than common ones.
6. All Grade 7 students are busy preparing for their English exam at the moment.
7. Humans are likely to live up to more than 150 years in the future.
8. This program aims to help people understand the importance(important) of keeping a healthy weight.
9. Scientists believe that reading regularly is helpful, because it can protect your brain(大脑) from getting weaker as
you grow older.
10. Linlin spends much time practicing(practice) Huangmei Opera every day.
三、一词多义(写出词汇在下列句子中的中文意思)
1. weigh
(1) She weighed the stone in her hand. (v.)称重量，量体重
(2) You must weigh up the pros and cons. (v.) 认真考虑；权衡
(3) He said the words very slowly, as if weighing each one of them. (v.) 斟酌(字句)
(4) His past record weighs heavily against him. (v.) （对看法或结果）有影响；有分量
(5) Something was weighing on her mind. 加重…的思想负担；使焦虑不安；使担忧
2. die
(1) His grandpa died of/from cancer last year. 死于
(2) After a while, the wind began to die down. 逐渐减弱，逐渐平息
(3) I'm dying for a glass of water. 渴望；极想
(4) Old habits die hard. 旧习难改。
(5) Hu fears(害怕) that his art will soon die out. 灭绝，消失
四、单项选择
1. We all thought ________ necessary for you to spend as much time as you can ________ English.
A．that; improvingB．it is; to improve C．it; improve D．it was; improving
【答案】D
【详解】句意：我们都认为对你来说尽可能多地花时间提高英语水平是有必要的。
考查it句型和现在分词作宾补。think+it+形容词+for sb.+to do sth.是固定结构，表示“认为做某事对于某人
来说是……的”，其中it是形式宾语 ，这里描述过去大家的想法，也可用宾语从句，用it was，由此可排
除A和C选项；spend+时间/金钱+(in) doing sth.是固定结构，表示“花费时间/金钱做某事”，故选D。
2. The children ran to their parents with ________ at the school gate.
A．excitement B．government C．achievement D．meaning【答案】A
【详解】句意：孩子们在学校门口兴奋地跑向父母。
考查名词辨析。excitement兴奋；government政府；achievement成就；meaning意义。根据“The children
ran to their parents with…at the school gate.”可知，看到父母，孩子们应该很兴奋，excitement符合题意。故选
A。
3. Though Linda is lying on the bed with her eyes closed, she is still ________.
A．quiet B．thick C．awake D．sleepy
【答案】C
【详解】句意：虽然琳达闭着眼睛躺在床上，但她仍然醒着。
考查形容词辨析。quiet安静的；thick厚的；awake醒着的；sleepy困倦的。根据“Though Linda is lying on
the bed with her eyes closed, she is still…”的语境并结合选项可知，此处句意发生了让步，指尽管琳达闭着眼
睛，但是她是醒着的。故选C。
4. Though he is _________, he still help those _________ old people.
A．illness, ill B．sickness, sick C．ill, sick D．sick, ill
【答案】C
【详解】句意：尽管他自己身体不好，他仍然帮助那些生病的老人。
考查名词和形容词辨析。illness疾病，名词；ill生病的，形容词；sickness疾病，名词；sick生病的，形容
词。根据“Though he is...he still help those...old people.”可知第一空描述“他”身体不好，应该用ill或sick作
表语，第二空修饰“老人”应该用形容词作定语，ill不能作定语，故选C。
5. We should provide more __________ for endangered animals.
A．pressure B．achievements C．protection D．condition
【答案】C
【详解】句意：我们应该为濒危动物提供更多保护。
考查名词辨析。pressure压力；achievements成就；protection保护；condition条件，状况。根据“We should
provide more...for endangered animals.”可知，要为濒危动物提供保护。故选C。
6. The baby ________ 3.5 kilograms when he was born. But now the ________ of him is 10 kilograms.
A．weighs; weight B．weight; weighs C．weighed; weight D．weighed; weigh
【答案】C
【详解】句意：这个婴儿出生时重3.5公斤。但是现在他的体重是10公斤。
考查词语辨析。weigh称重，动词；weight重量，名词。分析句子，第一空应用动词作谓语，又根据“when
he was born”可知第一句中动作发生在过去，时态为一般过去时；定冠词the后跟名词，the weight of…“……
的重量”。故选C。【重点短语练习】
一、短语英汉互译
重5000千克 weigh 5,000 kilos
比...多很多倍 many times more than...
出生时 at birth
跑向... run over to...
走路时撞到 walk into
摔倒 fall over
照顾 take care of
对某人很特别 be special to sb.
事实上 in fact
10. 死于疾病 die from illnesses
11. 花费(时间/金钱)做某事 spend...doing...
12. 砍倒 cut down
13. 引起更过问题 cause more problems
14. 濒危野生动物 endangered wild animals
15. 派某人去...(某地) send sb. to ...
16. 救助这些动物的重要性 the importance of saving these animals
17. 做研究 do research
18. 更好地理解熊猫的习惯 better understand the habits of pandas
19. 水污染 water pollution
20. 保护...免受.... protect...from...
二、选择短语填空
at birth ；up to ；walk into ；fall over ；or so ；in fact ；cut down ；take care of
1. She takes care of her younger brother while her parents are at work.
2. She weighed only 2.5 kilograms at birth.
3. In fact , he didn't know anything about the accident, though he talked a lot about it.
4. The little boy fell over while running and scraped his knee.
5. The temperature can rise up to 40 degrees Celsius in the summer.
6. It will take 30 minutes or so to finish the homework.
7. She walked into a light post(柱子) while talking on the phone.
8. They cut down some trees in the backyard to make space for a garden.
【答案】1. takes care of
2. at birth
3. In fact
4. fell over
5. up to
6. or so
7. walked into
8. cut down
三、翻译句子
1. 世界上最大的南瓜重1226千克。
The world's largest pumpkin weighs 1226 kilograms.
2. 人类活动导致了很多了污染。
Human activities cause much pollution.
3. 政府应采取措施阻止人们捕杀鲸鱼。
The government should take action to stop people from killing whales.
4. 为了更好地理解这个话题(topic)，她决定研究互联网的历史。
To better understand the topic, she decided to do research on the history of the Internet.
【重点句型练习】
教材原句回译与练习
1. 我照顾它们，好像它们是我自己的孩子。
回译：I take care of them like they're my own babies.
解析：此句中like用作连词，表示“好像，仿佛”，like用作连词，还可以表示“像...一样”。
如：No one dance likes she did. 没有人像她那样跳舞。
2. 熊猫已经变得如此受欢迎，以至于它们现在是中国的象征。
回译：Pandas have become so popular that they are now a symbol of China.
解析：so...that...表示“如此...以至于...”，此句中引导结果状语从句。have become是“have+过去分词”结
构，表示现在完成时，可译为“已经...”。
仿写：
Dale轻声地走进房间以至于我都没有注意到他。
Dale came into the room so quietly that I didn’t notice him .3. 随着森林变小，以及其他人类活动造成更多问题，大熊猫找不到足够的食物，它们的幼崽也越来越少。
回译：As the forests get smaller and other human activities cause more problems, pandas cannot find enough to eat
and they are having fewer babies.
解析：此句中as引导时间状语从句，表示“随着...”。smaller, more, fewer都是比较级的表达形式。
仿写：
(1) 随着时间推移，他的病越来越严重了。
As time goes on, his illness gets worse and worse.
(2) 随着天气越来越凉爽，落叶越来越多。
As the weather gets cooler, there are more and more fallen leaves.
【综合技能练习】
1. 补全对话
A
A: Good morning!
B: 1
A: Eric, could you help me with my geography homework? What is the largest desert in the world? Is it the Arabian
Desert?
B: 2 The Sahara is the biggest and the Arabian Desert is the second biggest.
A: I see. 3
B: It’s about 9,600,000 square kilometers in size.
A: OK. Next question: what is the biggest salt lake in the world?
B: The Caspian Sea. It is bigger than any other salt lake.
A: Which country is the biggest in Asia?
B: 4
A: Wow, you’re really good at geography. Can you tell me something about animals in China?
B: No problem! Do you know pandas?
A: Sure! 5
B: That’s true! They live in China and mainly live on bamboo. They only weigh about 0.1 to 0.2 kg at birth.
A: That sounds fun. They must be very cute.
【答案】1．Good morning! 2．No, it isn’t./No. 3．How big is the Sahara? 4．China. 5．They
are black and white.【导语】本文是两个人关于地理知识的对话，涉及世界上最大的沙漠、最大的盐湖、亚洲最大的国家以及
中国的动物等内容。
1．根据“Good morning!”可知，此处也应该跟对方说早上好。故填Good morning!
2．根据“Is it the Arabian Desert?”和“The Sahara is the biggest and the Arabian Desert is the second biggest.”可
知，此处应给出否定回答。故填No, it isn’t./No.
3．根据“It’s about 9,600,000 square kilometers in size.”可知，此处应询问撒哈拉沙漠的面积。故填How big is
the Sahara?
4．根据“Which country is the biggest in Asia?”可知，此处应回答中国。故填China.
5．根据“Do you know pandas?”和“Sure!”以及“They live in China and mainly live on bamboo. They only
weigh about 0.1 to 0.2 kg at birth.”可知，此处可回答熊猫的外貌特征。故填They are black and white.
B
A: James, I didn’t see you yesterday. 1
B: Oh, I went to the cinema and saw a film.
A: 2
B: It’s about animals.
A: 3
B: It was wonderful. But it also made me very sad. Because there are really a number of animals that are in danger.
A: 4
B: Yes, I did. I learned a lot about the endangered animals. We can’t see most of them on the earth today.
A: Sorry to hear that.
B: I think we should do something to save them. Let’s join the Love Animal Club first.
A: 5 It’ll be helpful and fun.
A．Where did you go?
B．That’s a good idea.
C．Did you learn a lot from the film?
D．What is the film about?
E．Where have you been?
F．What do you think of the film?
【答案】1．A 2．D 3．F 4．C 5．B
【导语】本文是AB两人谈论看的电影，进而引申到保护濒危动物和加入爱动物俱乐部的对话。
1．根据下文“Oh, I went to the cinema and saw a film.”可知，空处是问对方去哪里了；选项A“你去哪里
了？”符合。故选A。2．根据下文“It’s about animals.”可知，空处是问电影关于什么；选项D“这部电影是关于什么的？”符合。
故选D。
3．根据下文“It was wonderful. But it also made me very sad.”可知，空处是对这部电影的评价；选项F“你觉
得这部电影怎么样？”符合。故选F。
4．根据下文“Yes, I did.”可知，空处为一般疑问句，且以助动词did开头；选项C“你从这部电影中学到了
很多吗？”符合。故选C。
5．根据上文“Let’s join the Love Animal Club first.”表示建议，以及空后“It’ll be helpful and fun.”可知，空处
是赞同对方的提议；选项B“那是一个好主意。”符合。故选B。
2. 语篇填空
A
The capybaras (水豚), a kind of cut animal, mainly live in South America. They are one of the 1
(popular) animals online because of the peaceful personality.
They can weigh up to about 90 kilos and grow to 1.3 2 (meter) in length. Other animals love to sit and
lie by capybaras’ sides 3 they are so gentle and friendly. They like water and usually stay in groups. They eat
plants and fruits for a living. They live such a comfortable life that nothing 4 (seem) to make them worry.
Sometimes, capybaras become“animal buses” while moving. They take small animals 5 birds, turtles and
even monkeys for a free ride.
Capybaras are so cute and have already 6 (become) popular pets in some places. However, it’s 7
(real) important to remember that they need proper care and good living conditions. When talking about protecting
capybaras, there are several things we can do. First, we need to protect 8 (they) living places. It includes
avoiding (避免) cutting down trees, pollution and other activities that can be bad for capybaras’ environment. 8
(two), we shouldn’t catch and keep them for any reason. They are an important part of the ecosystem (生态系统) and
should be left to live alone. Finally, we should tell people 10 importance of protecting them and other
endangered animals.
Capybaras are fascinating animals. We should take action and make sure that these cute animals can continue
to live in the wild.
【答案】
1．most popular 2．meters 3．because 4．seems 5．like 6．become 7．really 8．
their 9．second 10．the
【导语】本文主要讲述的是水豚这种令人着迷的动物。并呼吁我们应该采取行动，确保这些可爱的动物能够继续在野外生存。
1．句意：由于性格温和，它们是网上最受欢迎的动物之一。根据“one of+形容词最高级+名词复数”可知，
横线上是形容词最高级。故填most popular。
2．句意：它们的体重可达 90 公斤，身长可达 1.3 米。横线前是数字大于1，所以横线上是名词复数，所
以将meter变为meters。故填meters。
3．句意：其他动物喜欢坐在水豚身边或躺在它们身边，因为它们非常温顺和友好。横线后是解释原因，应
用because“因为”符合语境。故填because。
4．句意：他们过着如此舒适的生活，似乎没有什么让他们担心。此句描述事实，所以是一般现在时，由于
主语是不定代词，动词应用三单形式。故填seems。
5．句意：他们免费搭载小动物，如鸟、乌龟、甚至猴子。横线后是举例子，介词like“像”符合。故填
like。
6．句意：水豚十分可爱，在一些地方已经成为流行的宠物。此句是现在完成时have+done，所以横线上是
动词的过去分词become。故填become。
7．句意：然而，真正需要记住的是，它们需要适当的照顾和良好的生活条件。横线上应用副词修饰形容词，
所以将real变为really。故填really。
8．句意：第一，我们要保护好他们的居住场所。横线上应用限定词修饰名词place，所以将they变为
their“他们的”。故填their。
9．句意：第二，我们不应该以任何理由捕捉和留存它们。根据前文“First,”可知，横线上是序数词
second“第二”。故填second。
10．句意：最后，我们应该告诉人们保护它们和其他濒危动物的重要性。此处是结构“the+名词+of”……
的……，所以横线上是定冠词the。故填the。
B
In Grade 2, Carter Steadman learned about the monarch butterfly and he quickly became so interested in them
that his friends even called 1 (he) the Monarch Kid.
In North America, the number of monarchs is becoming smaller. Carter decided to do 2 he could to
save them. At age 9, he planned to create a way station 3 monarchs. “It’s a place where monarchs can stop
and produce eggs,” says Carter. Carter cleared 4 area in his garden in Virginia. Next, he planted flowering
plants called milkweed—monarchs’ food. 5 everything was ready, he waited for the butterflies to come.
Carter wanted to do more. In spring, he put a monarch way station at his school. With his teacher’s help,
6 (hundred) of students planted milkweed in the school garden. To teach more people about monarchs, Carter
then started a website, Butterfly Buddy, and spoke at 7 (library) as well as other public places.Carter really enjoys 8 (look) after butterflies in his garden. So far, he 9 (raise) 312
monarchs and later he will free them! Carter believes encouraging more people to join in is 10 (helpful)
way of all. “Monarchs need help. If people know more, they will care more,” he says.
【答案】
1．him 2．what 3．for 4．an 5．When/As/After 6．hundreds 7．libraries 8．
looking 9．has raised 10．the most helpful
【导语】本文介绍了卡特为了拯救帝王蝶而做的事情。
1．句意：在二年级时，卡特·斯蒂德曼了解了帝王蝶，他很快就对它们产生了兴趣，他的朋友们甚至称他为
帝王蝶孩子。空处作宾语，应用代词宾格。故填him。
2．句意：卡特决定尽他所能去救它们。空后是宾语从句，空处需要用连接词作do的宾语，what符合，故
填what。
3．句意：9岁时，他计划为帝王蝶们建造一个中转站。根据“create a way station...monarchs.”可知，他为帝
王蝶们建造一个中转站，应用介词for“为了”，故填for。
4．句意：卡特在弗吉尼亚州的花园里清理了一块空地。此处表示泛指，area以元音音素开头，应用an。故
填an。
5．句意：当一切都准备好了/一切准备就绪后，他等着蝴蝶来。分析题干可知，此处需要连接词，可以用
when或as引导时间状语从句，也可以用after引导。故填When/As/After。
6．句意：在老师的帮助下，数百名学生在学校花园里种了乳草。hundreds of“数以百计的”，为固定短语，
故填hundreds。
7．句意：为了让更多的人了解帝王蝶，卡特创办了一个名为“蝴蝶伙伴”的网站，并在图书馆和其他公共
场所发表演讲。library是可数名词，应用复数表示泛指，故填libraries。
8．句意：卡特很喜欢在他的花园里照看蝴蝶。enjoy doing sth“喜欢做某事”，故填looking。
9．句意：到目前为止，他养了312只帝王蝶，之后他将释放它们！根据“So far”可知，本句是现在完成时，
主语是三单，助动词用has。故填has raised。
10．句意：卡特认为，鼓励更多的人加入是最有帮助的方式。根据“of all”可知，三者以上的比较，应用最
高级，故填the most helpful。
3. 完形填空
When we are talking about animals in China, the most precious (珍贵的) kind of animal we would think of is
probably the panda. In fact, a kind of bird is as precious as panda, but many people don’t 1 much about it.
The bird is the crested ibis (朱鹮). It is as 2 as snow with a red face and it looks very beautiful.Crested ibises live in tall trees by small rivers or rice fields. They 3 small fish and some other small
animals for food. About one hundred years ago, a lot of crested ibises 4 in China, Russia and Japan. Later,
as they lost their homes, the 5 of them was getting smaller and smaller. Between 1965 and1980, people
didn’t see any of them living in the wild. 6 , on 23rd May, 1981, scientists found seven of them in the south
of Shaanxi Province. In order to protect crested ibises in the wild, the Chinese government is 7 up natural
parks and developing other plans. Now scientists are doing a lot of researches to help them to 8 more
babies so that there will be more and more crested ibises.
Today there are about 1, 500 crested ibises living in the wild and there are about500 crested ibises in 9
and research centers. On October 24, 2024, Japan announced the return of 16 crested ibises to China and shipped
them to Beijing on October 31. Thanks to the efforts of China, Japan and South Korea to carry out cooperative
breeding research, the 10 global population of crested ibis has reached 11, 000.
1．A．remember B．find C．believe D．know
2．A．black B．white C．yellow D．brown
3．A．look after B．look at C．look for D．look like
4．A．died B．sang C．danced D．lived
5．A．number B．age C．size D．width
6．A．Carefully B．Actually C．Luckily D．Generally
7．A．putting B．giving C．looking D．setting
8．A．hide B．produce C．teach D．touch
9．A．forests B．mountains C．zoos D．museums
10．A．latest B．earliest C．oldest D．largest
【答案】
1．D 2．B 3．C 4．D 5．A 6．C 7．D 8．B 9．C 10．A
【导语】本文主要讲述了中国的珍稀鸟类朱鹮的相关情况，包括它的外观、生活习性、数量变化以及保护
措施等。
1．句意：实际上，有一种鸟和熊猫一样珍贵，但很多人对它了解不多。
remember记得；find找到；believe相信；know知道，了解。根据“In fact, a kind of bird is as precious as
panda, but many people don’t…much about it.”可知，这里是know about，表示“了解”，符合语境，故选D。
2．句意：它像雪一样白，有一张红脸，看起来非常漂亮。
black黑色的；white白色的；yellow黄色的；brown棕色的。根据“as snow”可知，此处表示像雪一样白，
故选B。3．句意：它们寻找小鱼和一些其他的小动物作为食物。
look after照顾；look at看；look for寻找；look like看起来像。根据“small fish and some other small animals
for food”可知，此处表示寻找食物，故选C。
4．句意：大约一百年前，中国、俄罗斯和日本都有很多朱鹮生活。
died死亡；sang唱歌；danced跳舞；lived生活。根据“About one hundred years ago, a lot of crested ibises…in
China, Russia and Japan.”可知，此处表示朱鹮在这些国家生活，故选D。
5．句意：后来，随着它们失去了家园，它们的数量变得越来越少。
number数量；age年龄；size尺寸；width宽度。根据“Later, as they lost their homes, the…of them was getting
smaller and smaller.”可知，这里是the number of表示“……的数量”，符合语境，故选A。
6．句意：幸运的是，在1981年5月23日，科学家在陕西省南部发现了七只朱鹮。
Carefully仔细地；Actually实际上；Luckily幸运地；Generally通常，一般地。根据“scientists found seven of
them”可知，发现朱鹮是一件幸运的事，故选C。
7．句意：为了保护野生朱鹮，中国政府正在建立自然公园并制定其他计划。
put up张贴，搭建；give up放弃；look up查阅；set up建立。根据“natural parks”可知，此处表示建立自然
公园，故选D。
8．句意：现在科学家正在做很多研究来帮助它们繁殖更多的幼鸟，以便朱鹮的数量越来越多。
hide隐藏；produce生产，繁殖；teach教；touch触摸。根据“more babies”可知，此处表示繁殖幼鸟，故选
B。
9．句意：如今大约有 1500 只野生朱鹮，大约有 500 只朱鹮在动物园和研究中心。
forests森林；mountains山脉；zoos动物园；museums博物馆。根据“and research centers”以及朱鹮是珍稀鸟
类可知，此处表示在动物园和研究中心，故选C。
10．句意：由于中国、日本和韩国开展合作繁殖研究的努力，朱鹮的全球最新数量已达到11000只。
latest最新的；earliest最早的；oldest最老的，最旧的；largest最大的。根据“global population of crested ibis
has reached 11, 000”可知，此处表示最新的数量，故选A。
4. 阅读理解
A
About 1,101 manatees(海牛) died in Florida last year, many from hunger. So last December, government
wildlife experts (专家) came up with a plan to give food to the manatees. They decided to feed them green
vegetables like lettuce and cabbage. Ron Mezich, an expert, said, “We’ re making a difference.” So far, they have
served up more than 193,000 pounds of lettuce to hungry manatees.
Manatees are huge sea animals that only eat sea grass and other plants that live in the sea. That’s one reasonwhy they’ re sometimes called “sea cows”.
Since 1967, Florida’s manatees have been on the US government’s list of endangered animals. Most dangers
to manatees come from humans. One of the biggest problems facing the animals are boats. Thousands of manatees
were hit or killed by boats. At one point, there were only about 2,000 manatees left in Florida. With protection, the
number increased. In 2016, there were more than 6,000 manatees.
However, as sea grass began to disappear, the number of manatees keeps going down again. Warming seas
with polluted water have created huge growths of algae (藻) on the ocean’s surface. The algae blocks the sunlight
that allows the sea grass to grow. In Indian River Lagoon, where manatees often go in the winter, about 90% of the
sea grass beds there have died off. Florida will work to help restore (恢复) sea grass beds. But that will take time.
Scientists still worry that hundreds more manatees could starve this winter.
1．How has the number of manatees changed over years?
A． B．
C． D．
2．What is the meaning of the underlined word “starve”?
A．to die from hunger B．to eat up sea grass
C．to be hit by boats D．to lose swimming ability
3．Which is the best title for this passage?
A．Manatees Feeding Program B．Money Given to Save Manatees
C．Sea Grass Beds Restored for Manatees D．Reasons for Manatees’ Death Still Unclear
【答案】1．C 2．A 3．A
【导语】本文主要介绍了海牛所面临的问题是饥饿，同时介绍了政府制定了给海牛喂食的计划。
1．细节理解题。根据“Since 1967, Florida’s manatees have been on the US government’s list of endangered
animals.”和“With protection, the number increased. In 2016, there were more than 6,000 manatees.”可知，1967
年海牛的数量是比较低的，在政府的保护下，2016年数量有所增长，结合“However, as sea grass began todisappear, the number of manatees keeps going down again.”可知，现在又因为海草的问题，海牛的数量又下降
了，故选C。
2．词句猜测题。根据“Scientists still worry that hundreds more manatees could starve this winter.”及前文描述可
知，海草因为污染导致数量减少，而以海草为生的海牛可能会因为挨饿而死亡，所以starve与to die from
hunger同义。故选A。
3．最佳标题题。根据“About 1,101 manatees died in Florida last year, many from hunger. So last December,
government wildlife experts (专家) came up with a plan to give food to the manatees.”以及通读全文可知，本文主
要介绍了海牛所面临的问题是因为没有足够的海草而导致饥饿，同时介绍了政府制定了给海牛喂食的计划，
因此选项A“海牛喂养计划”为最佳标题。故选A。
B
The coldest and most difficult place in the world to live is Antarctica (南极洲). It is the land of snow and ice
near the South Pole (南极). Most people do not think there is much life in the icy waters around it. They are wrong.
Actually, there are more than one hundred different kinds of animals there. The most famous animal of Antarctica is
the penguin (企鹅). Halley Bay (哈雷湾) was the world’s second largest home for penguins.
However, penguins are now in great danger. Recently, scientists found that the number of penguins has
dropped quickly. One of the main reasons is that many storms hit Halley Bay. Thousands of baby penguins died from
the terrible weather.
Scientists feel worried about this. Halley Bay used to be a safe place for penguins but now it isn’t. Luckily,
another home of penguins has gotten much bigger. In order to keep safe, many penguins have moved there. Although
penguins may have greater chance to keep alive, they are still facing the danger of dying out. Unless we do
something, they won’t have anywhere to go one day.
1．What can we know from the passage?
A．Antarctica is the coldest place in the world.
B．There were no living things in Antarctica.
C．Penguins are now well protected by human.
2．Why are penguins now in great danger?
A．Because Halley Bay was was the world’s second largest home for penguins.
B．Because the number of penguins has dropped quickly.
C．Because many storms hit Halley Bay and made lots of baby penguins die.
3．What does the underlined word “dying out” mean in Chinese?
A．逐渐灭绝 B．逐渐变少 C．逐渐出现4．What is the passage most probably taken from?
A．A history book. B．A school report. C．A science magazine.
【答案】1．A 2．C 3．A 4．C
【导语】本文主要向我们介绍了南极洲以及企鹅现在处于极大的危险之中的情况。
1．细节理解题。根据“The coldest and most difficult place in the world to live is Antarctica (南极洲).”可知，南
极洲是世界上最冷的地方。故选A。
2．细节理解题。根据“One of the main reasons is that many storms hit Halley Bay. Thousands of baby penguins
died from the terrible weather”可知，因为许多风暴袭击了哈雷湾，导致许多小企鹅死亡。故选C。
3．词义猜测题。根据“Unless we do something, they won’t have anywhere to go one day.”可知，除非我们采取
行动，否则企鹅总有一天会无处可去。说明企鹅仍然面临着灭绝的危险。故选A。
4．推理判断题。文章主要向我们介绍了南极洲以及企鹅现在处于极大的危险之中的情况，所以可以在科学
杂志上看到。故选C。
5. 任务型阅读
Welcome to the Amazon rainforest. As the largest rainforest in the world, it plays an important role in
keeping the balanced ecosystem (生态系统) on the Earth. With an area of around 6 million square kilometers, the
Amazon rainforest is more than half the size of China. This area has a great many species (物种). Actually, one in ten
known species in the world can be found here.
Of the 390,000 plant species known to us, more than 40,000 can be found in the Amazon. There are different
levels in the forest. At the bottom is a system of roots under the ground. Above that is leaf litter on the dark forest
floor. The next level is made up of shorter plants with large leaves. Then there are the towering ancient hardwoods,
and finally the tops of the trees which are taller than any other level of trees in the forest. Each level of the forest
forms its own little world, home to different kinds of living things.
More than 1,300 species of birds and over 400 species of mammals (哺乳动物) hide among the forest’s plant
life. This jaguar is one example. While a large number of jaguars survive here, they are only one part of this forest’s
food chain (食物链). They feed on at least 87 species, including frogs. These frogs, in turn, feed on insects which eat
leaves and fruit.
The Amazon rainforest is a treasure house of species that can be used for food or medicine. What’s more, the
Amazon rainforest breathes life into the planet by producing over 20 percent of all the Earth’s oxygen (O ). So it is
2
often known as the “lungs of the planet”.1．What does the underlined word “it” refer to in the first paragraph?
2．To complete the following food chain, ___________ can be put into ▲.
A． B． C．
3．将该句“The Amazon rainforest is a treasure house of species that can be used for food or medicine.”翻译成汉
语。
4．从文中找到与该句“Ten percent of the world’s known species live in this place.”意思相同或相近的句子。
5．根据短文内容完成下列短文,每空不超过4个词。
The Amazon rainforest is the rainforest in the world, covering an area of around 6 million square
kilometers. It is home to a great many species, including , birds, and mammals. The forest has different
levels, each forming its own little world, home to different kinds of living things. The Amazon rainforest is also
known as the “ ” because it produces over 20 percent of the Earth’s oxygen. This rainforest
keeping the balanced ecosystem on Earth.
【答案】
1．The Amazon rainforest.
2．B
3．亚马孙雨林是一个可以用来做食物或药物的物种宝库。
4．Actually, one in ten known species in the world can be found here.
5． largest plants lungs of the planet plays an important role
【导语】本文是一篇说明文，主要介绍了亚马孙雨林作为全球最大热带雨林的重要性，包括其面积、物种
多样性、森林层次结构及生态功能。通过描述其“地球之肺”的称号，强调其对维持地球生态平衡的关键
作用。
1．根据“As the largest rainforest in the world, it plays an important role...”可知，“it”指代前文提到的Amazonrainforest（亚马孙雨林）。故填The Amazon rainforest.
2．根据“This jaguar is one example. While a large number of jaguars survive here, they are only one part of this
forest’s food chain (食物链). These frogs, in turn, feed on insects which eat leaves and fruit.”可知，食物链为：树
叶和果实→昆虫→青蛙→美洲虎。▲处应选昆虫的图片，故选B。
3．The Amazon rainforest“亚马孙雨林”；is“是”；a treasure house“一个宝库”；of species“物种的”；can
be used for“被用来”；food or medicine“食物或药物”。故填：亚马孙雨林是一个可以用来做食物或药物的
物种宝库。
4．“Ten percent of the world’s known species live in this place.”意为“世界上10%的已知物种都生活在这里”，
文章中“one in ten known species in the world can be found here”与这句话表示相同的意思。故填Actually, one
in ten known species in the world can be found here.
5．①句意：亚马孙雨林是世界上最大的雨林。根据“As the largest rainforest in the world”可知，亚马孙雨林
是世界上最大的雨林，故填largest。
②句意：它是许多物种的家园，包括植物、鸟类和哺乳动物。根据“Of the 390,000 plant species...more than
40,000 can be found in the Amazon”可知，植物种类丰富，此处用名词复数形式表示泛指，故填plants。
③句意：亚马孙雨林被称为“地球之肺”，因为它生产地球20%以上的氧气。根据“it is often known as the
‘lungs of the planet’”可知，它被成为“地球之肺”，故填lungs of the planet。
④句意：亚马孙雨林在维持地球的生态平衡上发挥着重要作用。根据“it plays an important role in keeping the
balanced ecosystem”可知，它发挥着重要作用，句中时态为一般现在时，主语是This rainforest，动词使用第
三人称单数形式。故填plays an important role。
