原因状语从句 PPT
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here.
区分because，as, since, for
because, 表直接原因，语气最强，放主句前后都可，常
回答why引导的问句 They went to school by bus because it was cheap.
since 表示已知的，显然的理由或原因，意思是既然，较
正式，语气比because弱 Since you don't trust him, you should not employ(雇
1. He has to get up early __C__ the bad weather.
A. because
B. so
C. because of
D. as a result
2. He didn’t study hard _D__ he failed the exam.
A. for B. as
Ⅰ. 用because或because of 填空 1. I study hard ________ I want to be a teacher in the
future. 2. ________ he is tired, he does not want to go
shopping with us. 3. You laugh loudly ________ this? 4. The match was put off __________ the heavy rain. 5. ________ _____ the storm, he didn't go there.
佣) him.
as 附带说明的双方已知的原因，语气比since弱，位置灵
活 As it is dark, you'd better not go out.
for 表示不知道的原因，语气最弱，位于主句之后，对前
面内容进行补充及解释说明 Mr. Green must be ill, for he is absent(没出席的) today.
C. because
D. so
3. They arrived __A_ the air port at 8:00 this morning?
A. at B. to
C. in
D. on
4. My classmates and I had __A__ fun in the school trip.
A. lots of B. a lot C. many
D. few
单元语法聚焦四
( A )7.—Why do you like your history teacher? —________ he is very friendly and kind to us. A．Because B．When C．But D．What ( C )8.Some of the students are nearsighted ________ they spend too much time watching TV or playing online games. A．when B．though C．because D．unless
原因状语从句
概念
表示主句动作发生原因的句子
My moyher doesn't go to work because she is ill. As (由于)we have no money, we can't buy it. Now that （既然）you are here, you'd better stay
A. because B. though
C. until D. unless
大家应该也有点累了，稍作休息
大家有疑问的，可以询问和交流
10
单元语法聚焦四
( B )3.The traffic policeman took away Jim's driver's license ________ he broke the traffic rules of drunk driving. A. though B. because C. till D. and ( )4.Rules are helpful to us，________we haAve to follow them. A. so B. but C．or D. because
单元语法聚焦四
Ⅱ. 单项选择
( D )1—I like rain ________it makes me feel
cool and relaxed.
—So do I.
A．or
B. பைடு நூலகம்o
C. but
D. because
( )2.I didn't accept his help________ I waA nted to try it myself.
注意三个问题
1， because 和 so 不能连用，二者只能出现其一 Because she is ill，my moyher doesn't go to work . She is ill，so my moyher doesn't go to work .
2, because 和 because of 的区别及转换 because+句子 becauseof +名词\代词\动词ing He can't come because the weather is bad. He can't come because of the bad weather.
( C )5. ____单__元__语h法e e聚xe焦rc四ises every day, ________ he is very healthy. A. Because; so B. Because; though C. Because; / D. Though; / ( D )6.We have to put off ________ our sports meeting ________ the bad weather. A．hold; because B．hold, because of C．holding; because D．holding; because of
区分because，as, since, for
because, 表直接原因，语气最强，放主句前后都可，常
回答why引导的问句 They went to school by bus because it was cheap.
since 表示已知的，显然的理由或原因，意思是既然，较
正式，语气比because弱 Since you don't trust him, you should not employ(雇
1. He has to get up early __C__ the bad weather.
A. because
B. so
C. because of
D. as a result
2. He didn’t study hard _D__ he failed the exam.
A. for B. as
Ⅰ. 用because或because of 填空 1. I study hard ________ I want to be a teacher in the
future. 2. ________ he is tired, he does not want to go
shopping with us. 3. You laugh loudly ________ this? 4. The match was put off __________ the heavy rain. 5. ________ _____ the storm, he didn't go there.
佣) him.
as 附带说明的双方已知的原因，语气比since弱，位置灵
活 As it is dark, you'd better not go out.
for 表示不知道的原因，语气最弱，位于主句之后，对前
面内容进行补充及解释说明 Mr. Green must be ill, for he is absent(没出席的) today.
C. because
D. so
3. They arrived __A_ the air port at 8:00 this morning?
A. at B. to
C. in
D. on
4. My classmates and I had __A__ fun in the school trip.
A. lots of B. a lot C. many
D. few
单元语法聚焦四
( A )7.—Why do you like your history teacher? —________ he is very friendly and kind to us. A．Because B．When C．But D．What ( C )8.Some of the students are nearsighted ________ they spend too much time watching TV or playing online games. A．when B．though C．because D．unless
原因状语从句
概念
表示主句动作发生原因的句子
My moyher doesn't go to work because she is ill. As (由于)we have no money, we can't buy it. Now that （既然）you are here, you'd better stay
A. because B. though
C. until D. unless
大家应该也有点累了，稍作休息
大家有疑问的，可以询问和交流
10
单元语法聚焦四
( B )3.The traffic policeman took away Jim's driver's license ________ he broke the traffic rules of drunk driving. A. though B. because C. till D. and ( )4.Rules are helpful to us，________we haAve to follow them. A. so B. but C．or D. because
单元语法聚焦四
Ⅱ. 单项选择
( D )1—I like rain ________it makes me feel
cool and relaxed.
—So do I.
A．or
B. பைடு நூலகம்o
C. but
D. because
( )2.I didn't accept his help________ I waA nted to try it myself.
注意三个问题
1， because 和 so 不能连用，二者只能出现其一 Because she is ill，my moyher doesn't go to work . She is ill，so my moyher doesn't go to work .
2, because 和 because of 的区别及转换 because+句子 becauseof +名词\代词\动词ing He can't come because the weather is bad. He can't come because of the bad weather.
( C )5. ____单__元__语h法e e聚xe焦rc四ises every day, ________ he is very healthy. A. Because; so B. Because; though C. Because; / D. Though; / ( D )6.We have to put off ________ our sports meeting ________ the bad weather. A．hold; because B．hold, because of C．holding; because D．holding; because of