9年级人教版全一册 Unit 7 Teenagers should be allowed to choose their own clothes. Section A 课件(共17张PPT)

(共17张PPT)
Teenagers should be allowed to
choose their own clothes.
Section
A
1. I don’t think sixteen-year-olds should be allowed to drive.
我认为不应该允许 16 岁的人驾驶汽车。
【要点指津】
(1)在主从复合句中，当主句的主语是第一人称，谓语动
词是 think, believe, suppose 等时，要将从句的否定词转移到主
句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定
式。
(2)sixteen-year-olds 是由复合形容词 sixteen-year-old 衍化
而来的，意为“十六岁的青少年”。“数词＋名词＋形容词”
可以构成复合形容词，其中的名词要用单数形式，且用连字符
连接。
【同步互动】
①I think students should be allowed to do homework with
friends.(改为否定句)
I _______ think students ________ be allowed to do homework
with friends.
②这棵苹果树有 6 米高，而那是一棵 10 米高的橡树。
The apple tree is ________ ________ ________, but that tree
is a _____________ oak.
don’t
should
six
meters
tall
ten-meter-tall
③Bill said they were going to have ________ holiday.
B
A. a two-weeks’
B. a two-week
C. two weeks’
D. two weeks
解析：名词holiday前应用形容词，可排除C、D项；复合
形容词中的名词应用单数，且不需要用所有格。故选B。
2. They aren’t serious enough.......