内容正文:
英语/Module5 Museums
语法专项训练
要点聚焦
二、表示否定禁止
提示别人不要做某事主要有以下几种表达方式:
一、if引导的条件状语从句(I)
1.No十名词或u.ing形式。例:
1.含义:在句子中作条件状语的从句是条件状
No photos!禁止拍照!
语从句。它表示假如有从句动作的发生,就
No parking!禁止停车!
会有主句动作的发生。
2.f从句的构成:f后面要接一个完整的句子作
2.Don't+动词原形。例:
从句。它既可以表示肯定意义,也可以表示
Don't go upstairs!
否定意义。例:
不要去楼上!
If it snows tomorrow,stay at home.
3.Never+动词原形。例:
如果明天下雪,就待在家里。
Never do that again!
If the light doesn't turn green,wait for
不要再那样做了!
thirty seconds.
4.情态动词mustn't,can't等十动词原形。例:
如果绿灯没亮,就等待30秒。
You mustn't play football on the road.It's
3.f从句的位置:f从句位置灵活,可直接放在
dangerous!
主句后面,也可放在句首。放在句首时,从句
禁止在马路上踢足球。那很危险!
后面要加逗号,和主句隔开。例:
In most of the museums,you can't make any
Give him this letter if you see him.
noise!
=If you see him,give him this letter.
在大多数博物馆里,不许吵闹!
如果你看到他的话,把这封信交给他。
昼语法练习
4.f从句的用法:本模块主要学习“f从句十祈
使句”结构来表达建议,相当于“如果…
I.用所给单词或短语的适当形式填空
就…”。需要注意的是:当主句是祈使句
1.If he
need)the instructions in
时,此时祈使句表示将来要发生的动作,f引
English,go to our website.
导的条件状语从句要用一般现在时表示将
2.If the computer
(not work),repair
来,而不能用一般将来时。例:
it please.
Study harder if you want to catch up with
3.If you want to send a text message,
your classmates.
(use)your mobile phone.
如果你想赶上你的同学,就要更加努力学习。
4.No
(swim)here.
40
Module5 Museums英语
5
not make)so much noise.The
2.Please sit next to Nancy..(改为否定句)
students are taking an exam.
next to Nancy.
6.Never
copy your classmates
3.Don't fish by the lake.(改为同义句)
homework.
by the lake.
7
(look)out!A car is coming.
4.You mustn't talk in class.(改为同义句)
8.If you want to go with me,
(get)up
in class.
earlier.
5.Don't wash your hands!(改为肯定句)
9.You can't
(smoke)in the hospital.
your hands!
10.If he
break)the traffic rules,
N,单项选择
punish him at once.
1.-Would you like to go shopping with me,
Carmen?
11.You mustn't
shout)in the
-I'd love to,
you don't want to go
classroom.
alone.
Ⅱ.完成句子
A.until
B.before
1.不要在草地上走。
C.if
D.but
2.-Jim,
read books while you are
on the grass,
walking in the street.It's very dangerous.
2.如果你不想乘公交车,请骑你的自行车吧。
OK.thank you.
If you
want to
the bus.
A.don't
B.doesn't
your bike,p