Unit 8 Save Our World
课时分层训练(四十七)
[Lesson 47]
Ⅰ.用适当的介词或副词填空
1．Lucy is connected ________ Lily. She is Lily's cousin.
2．Some birds live________ fish.
3．The chickens are sick. I am afraid that they will die ________．
4．The girl started ________ at 5：00 in the morning.
5．People shouldn't cut ________ trees in the forest.
Ⅱ.根据句意及首字母或汉语提示完成句子
1．His grandpa has been d________ for several years.
2．The d________ is the symbol of peace.
3．In society, we should r________ the old.
4．My pet dog d________ a week ago. Its death made me very sad.
5．There are many kinds of ________ (蚂蚁) in America.
Ⅰ.单项填空
( )1.The tiger lives ________ meat.
A. at B．in C．off D．for
( )2.Life is like riding a bicycle. To keep your ________， you must keep moving.
A. promise B．position
C．balance D．ability
( )3.There are no ________ things on the moon.
A. alive B．living C．lived D．lively
( )4.The little boy started out ________ how to protect the environment.
A. learning B．to learn
C．learned D．learns
( )5.2018·黄冈—Your new watch is so nice! When did you buy it?
—In April.I ________ it for two months.
A. have had B．had
C．have bought D．bought
Ⅱ.根据汉语意思完成句子
1．你是什么时候开始写这部小说的？
When did you ________ ________ ________ ________ the novel?
2．食品安全和我们的健康息息相关。
Food safety is closely ________ ________ our health.
3．树木砍倒后，土壤会被雨水冲走或被风刮走。
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When the trees________ ________ ________， the soil is washed away by the rain or blown away by the wind.
4．孩子们需要学会依靠他们自己。
The children need to learn to ________ ________ themselves.
5．由于禽流感，农场的鸡相继死去。
The chickens on the farm ________ ________ because of bird flu.
Ⅲ.阅读理解
Imagine a world where air pollution is no longer a problem. Clean air is all around us. People don't have to worry about polluting the air every time they drive their cars. They no longer need to face the problem of not having enough fuel either.
Although scientists have been trying for many years to develop a new kind of car that does not need gasoline(汽油), they have been unsuccessful. Recently, however, car engineers have succeeded in creating a new kind of car that runs on gasoline and electricity. This is the famous “hybrid car”. This car gets its name from the fact that it has a gasoline engine(引擎) and an electric motor inside. Hybrid cars do not pollute the environment as much as the cars that are commonly used today. They also cost drivers less money because they need less fuel than ordinary cars.
Hybrid cars are becoming widely popular in the United States. They are soon expected to become widely used around the world. If scientists and engineers continue to work on car development, perhaps the world with clean air that we imagined earlier just might become real in the future.
( )1.The underlined word “they” in Paragraph 2 means ________．
A. cars B．drivers
C．engines D．scientists
( )2.Hybrid cars ________．
A. increase air pollution
B．run only on electricity
C．have no engines inside
D．need less fuel than ordinary cars
( )3.The passage tells us that with the development of cars, we may ________．
A. like electric cars
B．drive cars easily
C．live in the world with clean air
D．understand how hybrid cars work
( )4.The best title for the passage would be ________．
A. The Car of the Future
B．The Meaning of Hybrid
C．The Use of Hybrid Cars
D．The Invention of the Car
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详解详析
课内基础自测
Ⅰ.1.with 2.on/off 3.off
4．out 5.down
Ⅱ.1.dead 2.dove 3.respect
4．died 5.ants
课后巩固提升
Ⅰ.1.C 句意：老虎以食肉为生。live off为固定搭配，意为“以……为食”，故选C。
2．C 考查名词辨析。promise意为“诺言”；position意为“位置，方位”； balance意为“平衡”； ability 意为“能力，才能”。根据句意可知选C。
3．B living放在名词前作定语，表示“活着的，有生命的”。
4．B start out后接动词时，要接动词不定式。
5．A 考查动词的时态。句意：“你的新手表很好看，你什么时候买的？”“四月份。我已经买了两个月了。”由句意推断该句应使用现在完成时，buy是非延续性动词，与时间段连用时，需将buy改为have。故选A。
Ⅱ.1.start out to write 2.connected to
3．are cut down 4.depend on
5．died off
Ⅲ.1—4 DDCA
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