内容正文:
Unit 6 When was it invented?
Section B 3a-Self Check 同步练习
Part 1 基础巩固
I.短语翻译。
1.很难决定__________________________________
2.突然__________________________________
3.给出信息__________________________________
4.提出,想出__________________________________
II.完成译句。
1.这台冰箱被低价出售。
The bridge was sold ____ _____ _____ _______.
2. 同时,他们需要阻止竞争对手将球投进他们自己的篮筐
____ ______ ______ ____,they need to ____ the competing team ______ _____ the ball into the basket.
3.这就是为什么书或者网上提得更多。
This is _________ books or ___________ usually mention more.
4.一些发明也可能突然带来其他发明。
Some inventions can also ________ ________ other inventions_________ _________ _____ _____.
5.这个发明者提出了一些想法。
The inventor _______ __________ ________ some ideas.
III.句型转换。(改为被动句)
1. They found the lost boy under a bridge last night.
The lost boy _____ ______ _____ _____ ______ last night by them.
2.Did she wash the clothes yesterday?
______ the clothes _______ yesterday by her?
3. I bought my son a toy for his birthday.
My son _____ ______ _____ ______ for his birthday by me.
A toy _____ ______ _____ my son for his birthday by me.
IV.单项选择。
( )1.—Sorry, I took your umbrella ____.
—It doesn't matter.
A.by hand B.by accident C.by the way D.by mistake
( )2.The thief ____ stole an old man's money on the bus ________ by a policeman a minute ago.
A.that; were caught B.that; is caught
C.who; has been caught D.who; was caught
( )3.I think ____ the children playing computer games in the computer room is about 35.
A.a number of B.the number of C.a lot of D.a few
( )4.It's nice ____ Kim ________ the fire on time.Or it may cause a big fire.
A.for; to put out B.for; putting out
C.of; to put out D.of; putting out
( )5.—Do you know to our school?
—Next term.
A.when the exchange students came B.when did the exchange students come
C.when the exchange students will come D.when will the exchange students come
V.根据句意及首字母或汉语提示完成单词。
1. It is believed that the