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每Bssp
语法纸
Day30助动词的分类及用法
、
基本助动词
She did finish the work.
基本助动词只有三个：be,do,have,作为助动词，be,
Do come and join us.
do,have本身没有词礼意义，只在动词词组中起语法作
3.助动词have:通常用来协助主动词构成完成体或完成进
用或者说只表示语法意义。
行体
助动词
现在时
过去时
e.g.Joan has seen that movie.
be
am is/are
was were
I have been working here for 20 years.
do
do/does
did
情态助动词
have
have/has
had
情态助动词共有4个，其中包括一些过去时形式.它们是
1.助动词be:通常用来协助主动词构成进行体或被动态
can/could,may/might,will/would,shall/should,must,ought
eg.The teacher is reading this sentence.(进行体)
dare/dared,need,used to,
The students were praised by the principal.(被动态)
情态助动问表示情态意义，其过去时形式并不一定就表示
2.助动词do
过去时间。情态助动词不能重叠使用；后接动词原形。
(1)通常用来协助主动词表示否定意义或构成疑问句
e.g.The consequences could be serious.
e,g.She doesn't live here any more.(否定意义)
It may snow before nightfall.
Why did she turn down your invitation (疑问句)
Massage will help the pain.
Did she go to school yesterday
Would you let me use your pen a minute
(2)助动词do还可用来咖重语气
I used to play dominoes there.
e.g.I do love you.
关于“情态助动词“的用法，将在第Day34-36展开说明。
一一一一一一沿道线对折，上记汾法下等通
Day30语法专练
姓名：
日期：
耗时：
一、单项选择
1.My brother
his homework.His teacher
7.Nowadays,Chinese
by more and more foreigners.
very angry.
I'm really proud of it.
A.doesn't;is
B.don't do;is
A.are spoken B.is spoken C.spoke D.has spoken
C.doesn't do;is
D.doesn't do;are
8.Leo is not a good team player.He rarely shares opinions
2.-Why
you like tigers
with his teammates,
-Because they are too scary for me.
A.does he B.doesn't he C.does him D.doesn't him
A.not
B.don't
C.no
D.aren't
9.Great changes in my hometown in the past ten years.
3.Ifit
tomorrow,we will go to the Mount Wudang.
A.took place
B.have taken place
A.rains
B.won't rain C.doesn't rain D.didn't rain
C.were taking pla D.had taken place
4.The doctor says to Tom,"
stay un too late..”
10.Never
T-suoh a beautiful painting.
A.Doesn't
B.Can't
C.Don't
D.No
A.do
B.have C.did
D.has
父
playing the piano every morning
11.
be careful!The floor is still wet after cleaning.
-Yes,but now she
English.
-I will be sure to do so!I
slip(滑倒)，
A.Is she practicing;practice
A.Do;won't B.Have;won't C.Do;will D.Have;will
B.Is she practicing;is practicing
12.-Where is your father
C.Does she practice;practice
-He
to Beijing on business.He
there
D.Does she practice;is practicing
twice before.
6.
your brother have a CD player
A.went;has gone
B.has gone;has been
-Sorry,I don't think he has
C.has been;went
D.has been;has been
A.Do,it
B.Does,one
C.Do,one
D.Does,it每Dssp
语法纸
Day30语法专练【解析】
1.答案：C解析：第一句主语My brother''是第三人称单数，其否定句需借助助动词doesn't',且助动词后
动词用原形do”;第二句主语His teacher'”是第三人称单数，be动词用is”。所以选C。
2.答案：B解析：“Wydo'tyou. ”是固定句型，用于提出建议或询问原因，意为你为什么不..呢？”，
所以选B。
3.答案：C解析：在P引导的条件状语从句中，遵循“主将从现”原则，即主句用一般将来时，从句用一般
现在时。从句主语it”是第三人称单数，否定句借助助动词doesn't”,后接动词原形“rain”,所以选C。
4.答案：C解析：这是一个祈使句的否定形式，祈使句通常以动词原形开头，其否定形式是在句首加Don't”,
所以选C。
5.答案：D解析：第一句根据“every morning'可知是一般现在时，主语“she”是第三人称单数，一般疑问句
借助助动词“Docs”,后接动词原形practice'”;第二句根据“now”及选项可知该处使用现在进行时，结构
为“be+动词的现在分词”，主语“she是第三人称单数，be动词用“is”,选项A和C中practice'”是原形，
与主语she的人称和数不符。所以选D
6.答案：B解析：第一句主语“your brother'”是第三人称单数，一般疑问句借助助动词Does”;第二句用“one”
来泛指，与前面提到的“a CD player"”是同类不同物，即“某个/某一个”同类事物，“it'用于指代前文提
到的同一个具体事物，所以选B。
7.答案：B解析：“Chinese'和“speak”之间是被动关系，即汉语被说”，且“Chinese"”是不可数名词，视为单
数，根据Nowadays'”可知用一般现在时的被动语态，结构为“is/am/are+动词的过去分词”，所以选B。
8。答案：A解析：反义疑问句遵循“前否后肯，前肯后否的原则，且前后句的时态和主语要保持一致。在
题干中，陈述句部分“He rarely shares opinions with his teammates'”中“rarely'”(很少)表示否定意义，所
以简短疑问句部分要用肯定形式；陈述句的谓语动词是实义动词shares'”,为第三人称单数形式，其一
般现在时的疑问形式要借助助动词does”,且主语是he”,所以简短疑问句应该是“does he'”。所以选A。
9.答案：B解析：“in the past ten years'”表示“在过去的十年里”，这是一个与现在相关的时间段，强调从过
去持续到现在的情况，通常用于现在完成时。现在完成时的结构是have/has+动词的过去分词”。主语
s“Great changes'”是复数形式，所以助动词用have”,“take place'"的过去分词是“taken place'”,因此句子应
该用have taken place ”。所以选B。
10.答案：B解析：Never'表示否定意义的副词放在句首时，句子要用部分倒装，即助动词提前。根据语
境可知句子时态是现在完成时，结构为have/has+动词的过去分词”，主语T是第一人称，用have”,
所以选B。
11.答案：A解析：第一句是祈使句，以动词原形开头，用“D0”加强语气；第二句根据语境可知是说“我不
会滑倒，用一般将来时的否定形式“won't,所以选A。
12.答案：B解析：has gonc to”表示去了某地（还没回来）；has been to”表示去过某地（已经回来），第
句说“他去北京出差了”，说明还没回来，用has gone to'”;第二句说“他以前去过那里两次”，说明已经
回来，用has been to”,所以选B

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