摘要：答案：B。“be made from” 用于成品看不出原材料的情况，酒由葡萄制成看不出葡萄，所以选 B 。

Unit 5 What are the shirts made of?

重点短语

be made of：由…… 制成（看得出原材料）

be made from：由…… 制成（看不出原材料）

be made in：在…… 制造

be known for：以…… 闻名

be known as：作为…… 而出名

no matter：无论

find out：查明；找出

go on a vacation：去度假

hand in：上交

例题

单项选择：The wine ____ grapes. You can't see the original material at all.

A. is made of

B. is made from

C. is made in

D. is made by

答案：B。“be made from” 用于成品看不出原材料的情况，酒由葡萄制成看不出葡萄，所以选 B 。

Unit 6 When was it invented?

重点短语

be invented by：由…… 发明

by accident：偶然；意外地

fall into：落入；陷入

take place：发生

without doubt：毫无疑问

at a low price：以低价

translate…into…：把…… 翻译成……

spread to：传播到

all of a sudden：突然；猛地

by mistake：错误地

例题

单项选择：I met my old friend ____ in the supermarket yesterday. What a coincidence!

A. on purpose

B. by accident

C. in time

D. at once

答案：B。“by accident” 意思是 “偶然；意外地”，符合在超市偶遇老朋友的语境 。

Unit 7 Teenagers should be allowed to choose their own clothes.

重点短语

be allowed to do sth.：被允许做某事

get their ears pierced：打耳洞

worry about：担心

be strict with sb.：对某人严格

be strict in sth.：在某事上严格

grow up：长大

end up as：最终成为

make sure：确保

keep away from：远离

get in the way of：妨碍

例题

单项选择：In our school, students ____ use mobile phones in class.

A. are allowed to

B. are not allowed to

C. allow to

D. don't allow to

答案：B。根据常识，学生在课堂上通常不被允许使用手机，“be allowed to do sth.” 是 “被允许做某事”，这里要用否定形式 。

Unit 8 It must be Carla's.

重点短语

belong to：属于

pick up：捡起；拾起；（开车）接某人

run away：逃跑

put down：放下；记下

at the same time：同时

communicate with：与…… 交流

point out：指出

in a certain way：以某种方式

prevent…from…：阻止…… 做某事

add…to…：把…… 加到……

例题

单项选择：This book ____ me. Look, my name is on it.

A. belongs to

B. is belonged to

C. belong to

D. is belonging to

答案：A。“belong to” 表示 “属于”，没有被动语态和进行时态，主语是第三人称单数，动词用第三人称单数形式 。

来源：佳佳课堂