Unit 6 When was it invented Section B (2a-2e)同步分层练习（含答案）

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Unit 6　When was it invented
Section B (2a-2e) 同步分层练习
【知识点过关练】
一、根据语境,用所给词的适当形式填空
1. The _______ (disable) won’t feel that lonely if everyone can do something to help them.
2.As a(n) _______ (profession) basketball player,James did what he could do to help his team to win the final.
3.There are all sorts of animals in the zoo, _______ (include) pandas,bears and kangaroos.
4.It is _______ (believe) that he has told the truth.
5.Children should be _______ (teach) to share things with others.
6.Some firefighters lost their lives in the terrible fire.They are _______ (hero) in our heart.
7.In each class, forty-eight pupils are _______ (divide) into eight groups of six.
8.Put the bananas into these five _______ (basket), kids.
二、根据语境,选择恰当的短语完成下列各句。短语中有一个为多余短语
divided into, all of a sudden, by mistake, dreams of, the number of, turn on
1. _______________ the members in this club is only ten.
2.The little boy _____________ becoming a policeman when he grows up.
3.The cake was______________ three parts by my mother just now.
4.The rain stopped _____________ and the sun came out then.
5.Sorry,I took your umbrella ________________ yesterday.
【核心素养提升练】
三、完形填空
In recent years, with more and more cars on the road, flying robots are used to deliver (递送) mails. Flying robots can 　1　 mails to people’s houses without having to deal with heavy 　2　. But they will spend too much time in returning. A research center is trying to improve its flying robots with the 　3　 of homing pigeons (信鸽).
Homing pigeons are pigeons that are　4　 trained to fly home from somewhere else. In tests, researchers 　5　 that homing pigeons were 　6　 efficient (高效的) than flying robots at returning to their home. So the research center is trying to use a flying robot, together with a 　7　, to deliver mails. After the robot finishes its tasks, it can 　8　 the pigeon back in the shortest possible time.
Although it will cost more money to　9　 pigeons, the research center says that it can 　10　 time. And the time it saves will make up for the cost.
( )1.A.invite　　B.carry　　 C.blow
( )2.A.traffic B.rain C.fire
( )3.A.help B.luck C.treat
( )4.A.poorly B.carelessly C.specially
( )5.A.promised B. found C.planned
( )6.A.less B.more C.little
( )7.A.homing pigeon 　 B.big house C.leading person
( )8.A.train B.knock C.follow
( )9.A.dress B.raise C.clean
( )10.A.expect B.show C.save
参考答案
一、根据语境,用所给词的适当形式填空
1. disabled
2. professional
3. including
4. believed
5. taught
6. heroes
7. divided
8. baskets
二、根据语境,选择恰当的短语完成下列各句。短语中有一个为多余短语
1.The number of
2. dreams of
3. divided into
4. all of a sudden
5. by mistake
三、【主旨大意】本文是一篇说明文。飞行机器人能递送邮件,但返回驻地却需要很长时间,鉴于此,研究者把飞行机器人与经过特殊训练的信鸽放在一起,让信鸽带飞行机器人返回。这样就做到了完美结合。
1.B　考查动词。从上句“deliver mails(投递邮件)”可知:飞行的机器人能把邮件运送到各家各户。
2.A　考查名词。由于这是一个飞行的机器人,因此其运送邮件时可以在天上飞而避免遭遇拥堵的交通。
3.A　 考查名词。从上句“But they will spend too much time in returning.”可知,飞行机器人递送邮件是方便,但当其返回时却需要花费很多时间。由此推知,研究者试图通过信鸽的帮助来改进这个飞行机器人。
4.C　考查副词。本句解释了什么是信鸽。信鸽就是经过特殊训练能从别的地方飞回家的鸽子。
5.B　考查动词。研究者经过研究“发现”了信鸽的作用。
6.B　 考查副词。从上下文“通过信鸽引导飞行机器人回家”的描述可知,研究者发现,信鸽比飞行机器人回家时更高效。
7.A　 考查名词短语。由于信鸽比机器人回家时更高效,因此研究者考虑把飞行机器人与信鸽放在一起去递送邮件。
8.C　 考查动词。由于飞行机器人与信鸽一起去进行投递任务,因此在飞行机器人把邮件投递结束后,就会跟随信鸽飞回家。
9.B　 考查动词。这个经过特殊训练的信鸽肯定需要花费更多的钱来饲养。
10.C　 考查动词。尽管饲养信鸽花费更多,但研究中心说,这能节省时间。节省的时间能弥补开销。
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