Units7-8单元语法归纳练习课件+2022-2023学年人教版九年级英语全册

BAA
8.-Where's Li Tao? I can't find him anywhere.
-He ____ be in the library. He's always reading there when
he's free
A. must B. need C. can't D.can
9. -Are the glasses Tim's?
一.含有情态动词的被动语态 1.含有情态动词的被动语态结构 情态动词(should/can/must/may/could等)+be+及物动词 的过去分词
Many trees should be planted on the mountains. 应该在山上种许多树。 Tables can be made of stone. 桌子可用石头做成。
It is said that one Greater Bay Area university in
Guangdong in the future.
A. will be built
B. build
C. will build
D. is built
解析: 我们可用“语法分析法”解答本题。结合选项可知，主语 one Greater Bay Area university(一所大湾区大学)与谓语动词 build(建设)是被动关系,应用被动语态;由时间状语 in the future 可知,要用一般将来时的被动语态,其构成为“will + be +及物动词 的过去分词”,故选 A。句意:据说将来会在广东建一所(粤港澳) 大湾区大学。答案:A
7.-Have you decided where to go for your summer vacation?
-Not yet. We ___ go to Qingdao. It’s a good place for
vacation. A. may B. need C. must D.could
was given
were
进行时态
am is are was
were
being given being given
完成时态
has been given
have bad been given
将来
含有情态 动词
shall be will given
can/must/...be given
(2019·广东) 中考·链接
三.情态动词表推测 1.情态动词表推测时,不同的形式表示不同的时态。
结构形式
用法
例句
情态动词+动词 原形
情态动词+be+ 动词的-ing形式
情态动词+have +动词的过去分 词
表示对现在的事情 的推测
表示对正在发生的 事情的推测
表示对过去或已经 完成的事情的推测
Something must be wrong with my bike. 我的自行车一定是出了毛病。
2. The dictionary may
for three weeks.
A. keep
B. be kept C.borrow D. be borrowed
3.-What’s the meaning of the activity“Let's save”? -Paper
shouldn't
in everyday life.
3.含有情态动词的主动句与被动句之间的转换
含有情态动词的主动句变为被动句时,要把主动句中的
宾语变为被动句中的主语;主动句中的谓语变为“情态
动词+be+及物动词的过去分词”;主动句中的主语变为
介词by的宾语(如果不强调动作的执行者,by短语常可省
略)。
主动句：She must clean her room every day.
主语 谓语
宾语
被动句：Her room must be cleaned (by her)every day. 她必须每天打扫她的房间。
(2019·四川遂宁) 中考·链接 Some people think trees on Tree Plant- ing Day only. A. should plant B. should be planted C. should be plant D. should be planting
单项选择
1.(2019·四川自贡)-Tom is always careless with his schoolwork.
Could you help him? -No problem! I think he
ABC
to think twice before starting.
A. should be told B. shouldn't be told C. should tell
注意 ① could 用于否定句时,语气较 can’t缓和 意为“不可能”
The news couldn't be true 那个消息不可能是真的。
② may/might用于否定句时，表示不太有把握的否 定推测，意为“可能不”。 There may not be enough money to pay for the car. 可能没有足够的钱来买小汽车。 The news might not be true. 那个消息可能不是真的。
He might be having break-fast at home. 他可能正在家里吃早饭。
I must have put my keys somewhere in the bed-romm.我一定是把钥匙放在卧 室的某个地方了。
2.情态动词表推测的意义和用法
句式
情态动词
用法
意义
肯定句 否定句
②否定句式:主语+情态动词+not+be+及物动词的过去分词 +其他. Waste paper should not be thrown here. 废纸不应该被扔在这里。 ③一般疑问句式:情态动词+主语+be+及物动词的过去分词 +其他? -Should it be done by Li Ming? 这件事应该由李明做吗? -Yes , it should. /No, it shouldn't. 是的,应该。/不,不应该。
C.can learn
D. can learned
5.(2019·安 徽)The villagers expect that the build- ing of the
bridge_________ before the rainy seasoncomes.
A. is completed
B. was completed
(2)(2019·成都)中考·链接
-Is that Tom over there?
-It
be him. He is on the plane to Chengdu now.
A. can't B. might not
C. must
解析: 我们可用“逻辑推理法”解答本题。 can't“不可能;不 能”，可表示把握性很大的否定推测或没有能力;might not“也许不”,表示把握性不大的否定推测;must“必须;一 定”，可表示肯定推测或必要性。由答语第二句“He is on the plane to Chengdu now(他现在在去成都的飞机上)”可推知, 那(人)“不可能”是他(汤姆)，表示把握性很大的否定推测， 应用can't. 答案:A
must
表示有把握的肯定推测
一定；肯定
could/may/mig 其肯定程度逐渐减弱，表示 可能
ht
把握性不大的推测
can’t
表示有把握的否定推测
不可能
疑问 must be very tired after a long journey 长途旅行后,他一定很累。 It might rain this afternoon. 今天下午可能会下雨。 She can't be at school. It's Sunday today 她不可能在学校里。今天是星期天。 Can he still be alive after so many years? 过了这么多年,他可能还活着吗?
解析:我们可用“语法分析法”解答本题。主语 trees 与动词 plant 存在被动关系,故应用被动语态; 含有情态动词的被动语态的结构为“情态动词+be+ 及物动词的过去分词”,故选 B。 答案:B
二 被动语态结构小结 各种时态的被动语态形式归纳(以动词give为例):
现在 过去
一般时态
am is given are
-No,they_____ be his. He doesn’t wear glasses.
A. must B.can C. mustn't D. can't
10. -Whose book is this?
-It _____ our geography teacher's. You see, his name is
2.含有情态动词的被动语态的基本句式 ①肯定句式:主语+情态动词+be+及物动词的过去分 词+其他. Children should be allowed to go to the movies with
friends on Friday nights. 孩子们应当被允许星期五晚上和朋友们一起去看 电影。
(1)(2019·江苏南京). 中考·链接
This black bag be Lisa's. Her favorite color is blue.
A. can
B. may
C. must
D. might
解析: 我们可用“逻辑推理法”解答本题。can“能,会”,表 示能力;may“可能，可以”，表示把握性不大的推测或允 许; must“一定,必须”,表示把握性很大的推测或必 要;might“可能，可以”，表示把握性不大的推测或请求允 许。由“Her favorite color is blue.”可推知此处表示把握性 很大的推测,应用 must。句意:这个蓝包一定是缇娜的。她最 喜欢的颜色是蓝色。答案:C
on it.
A. can't be
B. can be
DD
C. mustn't be D. must be
C. will be completed D. has been completed
6.-Excuse me, is this the right way to the Children's Palace?
- Sorry, I'm not sure. But it _____ be.
A. mustn't B. might C. can't D. must
A. waste
B. wasted C. be wasted D. is wasted
4.Thanks to the Internet, different kinds of information
______in a short time.
A. can be learned B. can been learned AC