Unit 13 We're trying to save the earth! 单元练习（含解析）

Unit 13 We're trying to save the earth!
一、单选题（本大题共10小题，共10.0分）
You've no idea ________ to build a new airport. Let me tell you, young man. That's billions of dollars!
A. how much it will cost us B. how long it will take us
C. how much will it cost us D. how long will it take us
—How much did you ________ for the red dress
—About three hundred yuan.
A. cost B. pay C. spend D. take
They will hold a concert ________ money for children in the poor areas.
A. raise B. raising C. to raise D. raised
—I like the black car, but it's too expensive for me. I can't ________ it.
—So you have to buy the cheaper one.
A. sell B. afford C. drive D. repair
We are going to put these old clothes ________ good use. Maybe we can use them to make shopping bags.
A. with B. for C. of D. to
—Do you know what the model planes are made of
—Waste wood from old buildings that were ________. You see, waste things can be ________ to life.
A. pull down; bring back B. pulled down; brought back
C. pull down; take away D. pulled down; taken away
—Mum, it's too hot. ______ I swim in the lake with my friends
—No, you ______. That's too dangerous!
A. Could; mustn't B. Need; couldn't
C. Must; needn't D. Should; can't
The boy has learned a lot by studying with a group ________ doing more exercises. He hates to spend much time on exercises.
A. because of B. instead of C. except for D. stick to
—Where did you get these old doors
—From the old houses which were ________ by the workers.
A. taken down B. pulled down C. turned down D. put down
________ his parents ________ he likes the red car, but they can't afford it.
A. Both; and B. Not only; but also
C. Neither; nor D. Either; or
二、完形填空（本大题共10小题，共15.0分）
Can you imagine that we could build a beautiful city with rubbish Maybe you will think it is (11) . However, it can be true! Nothing is a waste if we have a creative mind. Let me show you something about (12) rubbish.
Sometimes we can see tons of rubbish in the streets, on the roads, near the buildings... here and there. Many large cities became so ugly (13) it. Nobody likes rubbish, but in fact, some rubbish can be used again. All of us want to solve the problem, we must do something to (14) rubbish. We should take action from now on. (15) , some good things will not be wasted.
Do you often throw away things you don't need any more Have you ever thought about how these things can actually be put to good use For example, when a car gets too old, it may not run any more. But we can use the metal of the car to make something else. When a bottle is empty,it (16) as waste. You don't know bottle glass can be made into sand and used to build streets. Rubbish (17) food can be changed into fertilizer to make plants grow better. It is cheap and safe. And other rubbish can also be used to make building blocks. Now, (18) machines are designed for that.
(19) , people will watch films in a beautiful cinema which is built out of rubbish. Besides buildings and roads, cities may be made from rubbish. But so far, building beautiful cities made from rubbish is only (20) .
A. important B. understanding C. unbelievable D. possible
A. returning B. reusing C. reflecting D. repeating
A. because B. because of C. instead of D. as for
A. make a living as B. make promises to
C. make up our mind to D. make use of
A. On the way B. By the way C. In this way D. Out of the way
A. will be thrown away B. will throw away
C. threw away D. was thrown away
A. from B. in C. on D. to
A. fewer and fewer B. less and less
C. more and more D. more and less
A. Some day B. The other day C. Nowadays D. In the day
A. a symbol B. a letter C. a lesson D. a dream
三、阅读理解（本大题共5小题，共10.0分）
A
Humans share Earth with many kinds of wildlife. However, many of our animal and plant friends may not be around for much longer. Every two years, the Living Planet Report, a report by WWF (the World Wildlife Fund), comes out.
According to this year's report given in May, 1 million of Earth's 8 million species(物种) are in danger. It says that populations of animals including mammals(哺乳动物), birds and fish have fallen by 50 percent since 1970.
This is mainly because of human activity, such as climate change, habitat loss(栖息地减少), pollution and hunting.
Humans should take it seriously, Vox Media said. It can make a great difference to us as well. A 2017 study said there was a 75-percent fall in populations of flying insects over 30 years. Insects help plants much, we know. The report also shows that one-fifth of the Amazon rainforest went away in just 50 years.
All over the world, people are cutting down forests, using too much water from rivers and filling oceans with rubbish. Only a quarter of the world's land is now free of human activity. "We need to find ways to meet the needs of our growing population while protecting the environment," the WWF said.
How often does the Living Planet Report come out
A. Once a month. B. Once a year.
C. Twice a year. D. Once every two years.
What is the Living Planet Report about this year
A. The populations of some animals stayed the same in 1970.
B. The populations of some animals fell too much in 1970.
C. The populations of some animals have fallen since 1970.
D. The populations of some animals increased slowly since 1970.
In the past 50 years, about ________ of the Amazon rainforest died away.
A. 10% B. 20% C. 50% D. 60%
What does the underlined sentence mean in the last paragraph
A. 现在世界上只有四分之一的土地没有人类活动。
B. 现在世界上只有四分之一的土地人类可以自由活动。
C. 人类活动目前为止已经破坏了世界上四分之一的土地。
D. 人类为这些动物们提供了世界上四分之一的土地自由活动。
What human activity makes the biggest difference to the population of birds
A. Habitat loss. B. Hunting.
C. Pollution. D. Climate change.
四、阅读判断（本大题共5小题，共10.0分）
As we know, all living things have to eat food. For a man, a tiger, a fish, a bird, or even a worm, food is necessary. Generally speaking, all living things are sure to die without food. In every part of the world, many different kinds of animals share living places and live in communities(群落) together. They are connected in the food chain.
Within the food chain, some living things are producers and some are consumers(消费者). Plants are producers because they use sunlight, soil and other things to make their own food. Animals are consumers because they have to eat other animals or plants.
There are four different kinds of consumers in the animal kingdom. A carnivore is an animal that only eats other animals. A herbivore is an animal that only eats plants. An omnivore is an animal that eats both plants and animals. A scavenger is an animal that eats dead animals.
Look at the picture. It is an example of the food chain. The food chain shows the order in which animals eat each other in a community. In the picture, you can see what animal or plant is food for another animal. A leaf is food for a grasshopper, which then becomes food for a hungry mouse. The mouse is food for a snake. The snake is eaten by an eagle. In this way, all of these animals are connected.
根据上文内容判断正（T）误（F）。
The main idea of the passage is “four kinds of consumers”.
A. T B. F
The underlined word “ scavenger” means “食腐动物” in Chinese.
A. T B. F
The food for a mouse according to the picture is a grasshopper.
A. T B. F
All kinds of animals share their living places with others.
A. T B. F
There are some living things which don't need to eat food.
A. T B. F
五、选词填空-句子（本大题共1小题，共5.0分）
从方框中选出合适的短语并用其适当形式填空
throw away, pull down, set up, look like, upside down
(1) —What does your father
—He is tall and thin.
(2) The old buildings have been . They are going to build some new buildings.
(3) If you put the glass , the water will flow out.
(4) They are going to close down their company and a new one.
(5) Don't the trash onto the ground. Please pick it up.
六、单词拼写-单句（本大题共5小题，共5.0分）
根据句意及首字母提示写单词。
It is against the l to drive after drinking.
根据汉语提示完成句子
In Ningbo, everyone knows that things in blue rubbish bins can be (回收利用).
根据句意和汉语提示写出所缺的单词
I don't think I can (承担得起) the house.
根据句意和汉语提示写出所缺的单词
The (负责人) made a short speech and showed us the development of the company.
根据句意及汉语提示写单词
Being tall gives him an (优势) over the other basketball players.
七、完成句子（本大题共5小题，共10.0分）
根据汉语意思完成句子
玛丽当众讲话时总是很自信。
Mary is always confident when she speaks .
根据汉语意思完成句子，每空一词
他住在一个自己用废弃物建造的房子里。
He lives in a house that he himself rubbish.
根据汉语意思完成句子
艺术不但可以给他人带来快乐，而且也表明，只要一点点创造力，即使是冰冷坚硬的铁也可以产生活力。
Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be with a little creativity.
根据汉语意思完成句子
每个人都应该在环保方面发挥作用。(play)
Everyone should the environmental protection.
根据汉语意思完成句子
吃很凉的食物对胃有害。
It the stomach to eat very cold food.
答案和解析
1.【答案】A
【解析】宾语从句用陈述句语序，排除C、D；由That's billions of dollars.可知谈论的是花费多少钱，用how much和动词 cost连用，表示“花费多少”。how long表示“多久；多长”。故选A。
2.【答案】B
【解析】本题考查spend、cost、pay和take的区别。根据主语you和设空后的介词for可知，所缺的词是pay。
3.【答案】C
【解析】句意：他们为了给贫困地区的孩子筹款将会举办一场音乐会。本题中要用动词不定式作目的状语，故答案为C。
4.【答案】B
【解析】根据本题语境可知，我买不起那辆黑色的汽车，所缺的词是afford，故答案为B。
5.【答案】D
【解析】根据put sth. to good use的固定搭配可知，所缺的介词是to，该短语意为“好好利用某物”。
6.【答案】B
【解析】略
7.【答案】A
【解析】句意：——妈妈，天太热了，我可以和朋友们去湖里游泳吗？——不行，太危险了！根据句意，第一空表示委婉的请求，用Could；根据That's too dangerous!可知，妈妈“不准”“我”去湖里游泳，应用mustn't。故选A。
8.【答案】B
【解析】四个选项的含义分别是：because of因为；instead of代替，而不是；except for除了；stick to坚持。根据本题语境可知，那个男孩通过和小组一起学习的方式学到了很多，“而不是”做更多练习，instead of符合题意，故答案为B。
9.【答案】B
【解析】句意：——你是从哪里弄来这些旧门的？——从工人们拆掉的那些旧房子里。表示“拆掉”应用pull down，因此答案为B。
10.【答案】B
【解析】根据本题语境可知，不仅他父母，而且他也喜欢那辆红色的汽车，故not only... but also...符合题意。若选A项，应将likes改成like。
11~20.【答案】C、B、B、D、C、A、A、C、A、D
【解析】【文章大意】本文作者想象了一个由垃圾建造的城市是什么样子的。
1.
根据设空前的“你能想象我们可能建造一个由垃圾组成的城市吗？”可推断，或许你觉得那是“难以置信的”，所缺的词是unbelievable。
2.
让我给你看一些“重复使用”垃圾方面的东西，所缺的词是reusing，故答案为B。
3.
许多大城市“因为”垃圾变得很难看，根据设空后的“rubbish”以及“因为”的含义可知答案为B。
4.
我们必须做一些事情来“利用”垃圾，make use of符合题意，故答案为D。
5.
句意：以这种方式，一些好东西不会被浪费。in this way意为“以这种方式”，故答案为C。
6.
句意：当一个瓶子空了的时候，它会被当作废物扔掉。it指代的是“bottle”，它和throw away之间是被动关系。when引导时间状语从句时，从句的时态是一般现在时，主句的时态应是一般将来时，故答案为A。
7.
句意：来自食物的垃圾可以变成肥料，使植物长得更好。此处所缺的介词是from“来自”，故答案为A。
8.
现在“越来越多”的机器就是为此而设计的。machines是可数名词复数，故more and more符合题意。
9.
“总有一天”人们会在用垃圾建造的美丽的电影院看电影，some day符合题意，故答案为A。
10.
但是到目前为止，用垃圾建造美丽的城市只是“一个梦想”，故答案为D。
21~25.【答案】D、C、B、A、A
【解析】【文章大意】本文深度解读了世界野生动物基金会发布的《地球生命报告》，特别强调的是由于人类的破坏活动，鱼类、鸟类等野生动物数量五十年来已经下降了60％。1. 细节理解题。根据第一段中“Every two years, the Living Planet Report, a report by WWF (the World Wildlife Fund), comes out.”可推知，世界野生动物基金会每两年发布一次《地球生命报告》。
2. 细节理解题。根据第二段中“It says that populations of animals including mammals(哺乳动物), birds and fish have fallen by 60 percent since 1970.”可推知，今年报告的核心内容是野生哺乳动物、鸟类和鱼类的数量自1970年以来下降了60％。C项说法与原文信息一致。
3. 细节理解题。根据第四段中“The report also shows that one-fifth of the Amazon rainforest went away in just 50 years.”可推知，报告中提到过去的50年中亚马逊雨林消失了五分之一。B项符合题意。
4. 句意理解题。联系上文中提到的人类活动对自然的破坏程度可知，该句叙述的是那些还没有被人类破坏的地方。故句意理解为“现在世界上只有四分之一的土地没有人类活动”。
5. 图表观察题。题干意为“对鸟类数量影响最大的人类活动是什么”？观察图一可知，Habitat loss(栖息地减少)占总影响力的一半。故选A。
26~30.【答案】B、A、A、B、B
【解析】1.
这篇文章主要介绍的是食物链而不是四种消费者。
2.
由第三段中的“A scavenger is an animal that eats dead animals.”可知答案。
3.
由图可知老鼠的食物为蝗虫。
4.
由第一段中的“many different kinds of animals share living places and live in communities(群落) together”可知答案。
5.
由第一段中的“all living things have to eat food”可知答案。
31.【答案】【小题1】
look like
【小题2】
pulled down
【小题3】
upside down
【小题4】
set up
【小题5】
throw away
【解析】1. 略
2. 略
3. 略
4. 略
5. 略
32.【答案】law
【解析】略
33.【答案】recycled
【解析】略
34.【答案】afford
【解析】略
35.【答案】president
【解析】略
36.【答案】advantage
【解析】略
37.【答案】in public
【解析】略
38.【答案】built
out
of
【解析】略
39.【答案】brought
back
to
life
【解析】略
40.【答案】play
a
part/role
in
【解析】略
41.【答案】is
harmful
to
【解析】略
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