Unit 3 Life in the future Period 3 Grammar &Writing 课时精练（人教版必修5）
时间：45分钟
Ⅰ.用所给动词的适当形式填空
1．There was a car accident. The two ________ (injure)drivers were taken to hospital right away.
2．The little boy was found ________ (seat) at the table, ________ (sleep).
3．The newly ________ (elect) American President Obama is to visit China.
4．________(see) from space, the earth, with water ________(cover) seventy percent of its surface，looks like a blue ball.
5．It is important to have a ________ (balance)diet.
6．When ________ (offer) help，one often says “Thank you.”or“It's kind of you.”
7．________ (dress)in a white uniform，he looks more like a cook than a doctor.
8．People are trying to make the once ________ (pollute) rivers clean.
答案 1.injured 2.seated；sleeping 3.elected 4.Seen；covering 5.balanced 6.offered 7.Dressed 8.polluted
Ⅱ.用动词的过去分词形式完成下列句子
1．The machine ________ ________________________________is made in Shanghai.
