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每Dssp/
语法纸》
Day51语法专练【解析】
1.D解析：“now that'”意为“既然”；“so that'”意为“以便，为了”；“as long as'”意为“只要”；“as soon as'
意为“一…就.…”，此句表达凯特一到上海就给我打电话，强调两个动作紧接着发生，用“as soon
as符合语境，所以选D。
2.C解析：“afer”表示在..之后”；“when”表示当..时候”；until表示“直到...…为止”；“since”
表示“自从”。此句意思是我们青少年在面对困难时绝不能轻易放弃，直到我们实现日标，“til符
合语义，所以选C。
3.A解析：“when写引导时间状语从句，意为“当..时候”；“where写引导地点状语从句；that引
导宾语从句等，不引导时间状语从句；“how引导方式状语从句等。此句表达当别人处于困境时帮
助他们是好的，“when符合，所以选A。
4.C解析：“whcn写引导的从句中，谓语动词可以是短暂性动词或延续性动词；“until表示“直到”；
“while写引导的从句中谓语动词必须是延续性动词，常表示两个动作同时进行；“since'表示“自从”.
此句中was doing'”和“was playing”是两个同时进行的延续性动作，用“while”合适，所以选C。
5.B解析：if表示“如果'；“until'表示“直到…为止”；“although”表示“虽然”；“because表示“因
为”。此句意思是要求乘客一直坐着直到飞机完全停下来，“uti”符合语义，所以选B。
6.A解析：“sice有“自从.以来”和因为的意思，在此处表示“自从.以来”更合适，即自从
他父母来寻求帮助以来，警察就迅速行动寻找失踪的孩子；“so”表示“所以”；“if”表示“如果”；
“because”表示“因为”，用在此处语义不太合适，所以选A。
7.C解析：“unless'表示“除非”；“though'”表示“虽然”；“as有“因为”等多种意思，在此处表示“因
为”，即因为你一直努力训练，所以会取得好结果；“before'表示在..…之前”。根据语境as”合适，
所以选C。
8.A解析：“while"和when都有当…时候”的意思，“while写引导的从句中谓语动词必须是延续
性动词，“when引导的从句中谓语动词可以是短暂性动词或延续性动词。第一句was walking”是延
续性动作，用“while”或“when都可以；第二句pointed是短暂性动作，用“when"合适，所以选A.
9.B解析：“until'表示“直到”；“while”表示“当...时候”，常连接两个同时进行的动作；“since
表示“自从”；“so”表示“所以”。此句中“was cleaning”和“was cooking”是两个同时进行的动作，用
“while”合适，所以选B。
10.A解析：“as soon as”表示“一..就.”；“as long as'表示“只要”；“as far as'表示“就.而
言”；“as easily as'”表示“和.一样容易”。此句意思是我一下飞机就去看爷爷，“as soon as"符合语
境，所以选A。每Dssp
语法纸》
Day51时间状语从句
时间状语从句的用法
!7.s引导时间状语从句，意为“正当，随着”，强调动作同时进行
l.when意为“当…时”，可以与延续性动词和非延续性动词连c.g.As I was walking home,it started to rain.正当我走在回家路上
用.
时，开始下雨了，
e,g.When I was reading,the phone rang,我正在读书时电话响了.
时间状语从句的时态
When the mceting finished,I went home.会议结束后我同家了.
l.when,while,til,until,before,after和as soon as引导时
2.while意为“当…时”，强调动作同时发生，常与延续性动词间状语从句时，如果主句是一般将来时，从句常用一般现在时表
连用，
示将来.
e,g.She was reading a novel while her brother was playing games.c.g.When he comes,,I will tell him the news.他来的时候，我会告诉
她在看小说，她弟弟在打游戏，两个动作同时进行
他这个消息。
3.ass00nas意为“一.就”。
2.when,while,.till,until,before,after和as soon as引导时
e.g.I'll tell you as soon as he arrives.
问状语从句时，如果主句是祈使句或含有情态动词，从句常用一
4.since引导时间状语从句时，意为“自.…以来”。
般现在时表示将来.
e.g.She has lived here since she got married..她白钻婚以米就住在e,g.Don't leave until he comes,直到他来了你再离开.
这里，
3.since引导的时间状语从句中，主句常用现在完成时，从句常用
5.before意为“在..之前”，after意为在.…之后”.
一般过去时.
eg.Before the meeting starts,.please tum off your mobile phones,会e.g.Great changes have taken place since you left.自从你离开后，发
议开始前，请关闭手机.
生了很大的变化.
After I finish my work,I will go out for a walk.我完成工作后会出4.before,after引导时间状语从句时，会发生连接一般过去时和
去散步.
过去完成时的两个分句的情况，此时before后紧跟一般过去时，
6./until意为“直到.”，not…untl,意为“直到.ater后紧跟过去完成时.
才”.
eg.He had finished his homework before he watched TV.他完成作
e,g.She didn't start the lesson until the pupils settled down..直到学业后才看电视，作业完成在看电视之前
生们安静下来，她才开始上课.
!After he had eaten dinner,,he went to bed.他吃完晚饭后去睡觉，
治虫戏对斯.上记活法卜统超
Day51语法专练
姓名：
日期：
耗时：
、
单项选择
1.My friend Kate made a telephone call to me
she
7.-I am neryous about the football match
arrived in Shanghai yesterday.
-Take it easy.You will get a good result
you keep
A.now that B.so that
C.as long as D.as soon as
training hard.
2.We teenagers should never give up easily in the face of
A.unless
B.though
C.as
D.before
difficulties
we achieve our goals.
8.
I was walking home from school,I saw a strange
A.after
B.when
C.until
D.since
light in the sky.
I pointed it out to my friend,it went
3.It's good to help others
they are in trouble.
away.
A.when
B.where
C.that
D.how
A.While;When
B.While;While
4.I was doing my homework
my sister was
C.When;Vhiile
D.When;Since
playing the piano.
9.My morh r was elcan'ng the housc
my father was
A.when
B.until
C.while
D.since
cooking.
5.The passengers are asked to remain seated
the
A.until
B.while
C.since
D.so
flight has come to a complete stop.
10.-When will you go to see your grandpa
A.if
B.until
C.although
D.because
I'll see him
I get off the plane.You know I miss
6.The police have acted quickly to search for the missing
him very much.
child
his parents came to ask for help.
A.as soon as
B.as long as
A.since
B.so
C.if
D.because
C.as far as
D.as easily as

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