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八年级下学期期末重难知识点串讲+精练
专题04 句型转换及专练
（一）变否定句
1. be动词、助动词和情态动词后加_________ 动词变为_______形。
① My sister Jane does cleaning on weekends.
My sister Jane __________ ____________ cleaning on weekends.
② The twins were happy to see their uncle.
The twins ____________ ____________ to see their uncle.
③ The doctor could help that man.
The doctor ___________ _____________ that man.
2. 如果肯定句中含有这些词，就要发生改变。
some --- _____________ and --- ________________ a lot of\lots of --- ____________
already --- ___________ too/ also --- ____________ both… and… --- ____________
everything/ everyone/ everybody --- __________/ ___________/ ___________ always --- __________
① Cindy took some photos in the mountains.
Cindy __________ take ___________ photos in the mountains.
② She could dance and sing when she was five years old.
She ___________ dance __________ sing when she was five years old.
③ I have already finished my homework.
I __________ finished my homework __________.
3. 否定转移的词有：think, ________________________
I think I can pass the exam.
I __________ think I __________ pass the exam.
4. 一些特殊结构，变否定时，在动词（或词组）后直接加________。
My mother told me to watch TV last night.
My mother told me _________ __________ watch TV last night.
这样的词还有：____________________________________________________________________________
【专练】
1．Both Lucy and Lily are independent. (改为否定句)________ Lucy nor Lily _____________ independent.
2．Will he look after his brother?（改为被动句）
_______ his brother _______ _______ _______ by him?
3．Jim works as hard as you.(改为否定句)
Jim _______ work _________ hard as you.
4．Mary has been to museum many times. (改为否定句)
Mary ________ ________ to museum many times.
5．You’d better go to see your friend now.（改为否定句）
You had ______ _____ go to se your friend now.
6．Lily put on a hat this morning.（否定句）
Lily _________ ________ on a hat this morning.
7．He has already read the book. (改为否定句)
He _______ read the book _______.
8．Both Mary and Linda have been to Paris. (改为否定句)
________ Mary ________ Linda has been to Paris.
9．He’s already finished his work. (改为否定句)
He ________ finished his work ________.
10．I think she should be allowed to drive.（改为否定句）
I ________think she ________be allowed to drive.
11．Could you please open the door? (改为否定句)
Could you please _________ _________ the door?
12．All of us have been to Mount Tai. (改为否定句)
____________ of us _____________ been to Mount Tai.
13．Sandy was talking to her friends. (改为否定句)
Sandy ________ ________ to her friends.
14．She’s returned from the USA．(改成否定句)
She ________ ________ from the USA．
（二）变一般疑问句，作肯否回答
把be动词、助动词、情态动词置于句______，动词变为______形。否定回答注意要缩写。
① I used to be afraid of dark.
____________ you ___________ to be afraid of dark?② The rock band’s already started playing.
____________ the rock band started playing ___________?
③ He was reading in the library when the rainstorm came.
____________ he ____________ in the library when the rainstorm came.
④ There will be more cars in the future.
____________ ____________ be more cars in the future?
Yes, __________ ___________.
No, ____________ _____________
【专练】
1．I was playing computer games when Father got home.（改为一般疑问句）
________ ________ ________ computer games when Father got home?
2．He had dinner at a restaurant yesterday.（改为一般疑问句）
_________he _________dinner at a restaurant yesterday?
3．The old man has realized that he had too much unhealthy food.(改为一般疑问句）
________ the old man ________ that he had too much unhealthy food?
4．I have had him for three months. (改为一般疑问句)
________ you ________ him for three months?
5．I have already cleaned the room. （改为一般疑问句）
________ you cleaned the room _______ ?
6．Tony has seen the film. (改为一般疑问句，并作否定回答)
—________ Tony ________ the film?
—No, he ________.
7．He put some yogurt in the blender.（改为一般疑问句）
_____ he put _____ yogurt in the blender?
8．The Browns were watching TV when they got the phone call last night． （ 改为一般疑问句）
_____the Browns_____TV when they got the phone call last night？
（三）就划线部分提问
1. 特殊疑问词知多少：
什么，做什么_________ 在哪里____________ 怎样______________ 为什么_____________
谁___________ 谁的_____________ 哪一个____________ 多久一次___________
多久以后_____________ 多少个（cn.）_______ 多少个 (un.) ____________ 多少钱_____________
多少岁____________ 多远______________ 多长时间、长度 ___________ 颜色
______________
何时 ___________ 几点钟 __________
2. 先写_________疑问词，在把be动词、助动词或情态动词__________，动词变为_______形。
① Little Alice is flying a kite in the park.
_________ is little Alice __________ in the park?
② I was late for school because the traffic was very busy.
_________ __________ you late for school?
③ I have piano lessons three time a week.
_________ __________ do you have piano lessons?
【专练】
1．The population of our city is 6 million. (对划线部分提问)
________ ________ the population of your city?
2．He should go to the doctor for teeth cleaning.(对划线部分提问)
_______ should he ________?
3．The old man has lived in Jinan for more than 50 years. (就画线部分提问)
_________ has the old man lived in Jinan?
4．Peter has worked as a teacher since 1998. (对划线部分提问)
________ ________ has Peter worked as a teacher?
5．We were playing football at 10 o’clock yesterday.(对画线部分提问)
_______ _______ _______ _______ at 10 o’clock yesterday?
6．They are going to take a compass to find their way in mountain areas. (对划线部分提问)
________ they going to take a compass?
7．I think The Adventures of Robinson Crusoe is exciting. （对画线部分提问）
_________ do you _________ _________ The Adventures of Robinson Crusoe?
8．I have a headache. （对画线部分提问）
_________ _________ _________ with you?
9．Kelly felt sad because she failed the P.E. test (对划线部分提问)
________ did Kelly ________ sad?
10．The bridge weighs over 100,000 tons. (对划线部分提问）________ ________ does the bridge weigh?
11．They have been friends since two years ago. (对画线部分提问)
________ ________ have they been friends?
12．Qomolangma is 8844.43 meters high.（就句子画线部分提问）
________ ________ is Qomolangma?
13．My brother read the book last week.（对画线部分提问）
_________ _________ your brother_________the book?
14．I was washing some clothes at this time yesterday. (对画线部分提问)
________ were you ________ at this time yesterday?
15．You should call the police for help when you’re in danger. （对划线部分提问）
________I do when I’m in danger?
（四）变反义疑问句
反义疑问句中，前半句为陈述句，后半句为简短的一般疑问句，改写时要注意：
1. 前肯后否，前否后肯
2. 人称、时态和数要保持一致
3. 祈使句的反义疑问句是will you？特殊：Let’s 的反义疑问句是 shall?
4. 含有 little, few, no, nothing, never, hardly ever, seldom等词时，反义疑问句要用肯定形式
① Alice is a smart girl, __________ _________?
② Mr. Green often goes for a walk after dinner, __________ ___________?
③ He seldom plays soccer, __________ _________?
④ She used to be shy, __________ _________?
⑤ Let’s play basketball, ___________ ___________?
【专练】
1．Jimmy seldom made mistakes in his English tests.(改为反意疑问句）
Jimmy seldom made mistakes in his English tests, ________ ________?
2．He didn’t suppose that they would give him a surprise. (改为反义疑问句)
He didn’t suppose that they would give him a surprise, _________ _________?
3．They hardly know each other.（改为反意疑问句）
They hardly know each other, __________ __________?
4．He failed in the English exam again. （改为反意疑问句）
He failed in the English exam again, _______ _______?5．Mike’s never seen such an amazing thing.( 改为反意疑问句 )
Mike’s never seen such an amazing thing, ________ ________?
6．Let’s discuss the problem after the meeting. (改为反意疑问句)
Let’s discuss the problem after the meeting, ________ ________?
7．There is hardly any food in the fridge. （改成反义疑问句）
There is hardly any food in the fridge, _________ ________?
8．It is not right to do exercise immediately after a full meal.（改为反意疑问句）
It is not right to do exercise immediately after a full meal, ________ ________?
9．You’re supposed to talk with your parents. (完成反意疑问句)
You’re supposed to talk with your parents, ________________ ________________?
10．Jane never goes to school by bus, ________ ________? (完成反意疑问句)
11．There is little water in the glass, ________ ________? (完成反意疑问句)
12．Robert used to wear glasses. (改为一般疑问句)
________ Robert ________ to wear glasses?
13．You haven’t seen the film yet, ______ _______? (完成下列反意疑问句)
14．Mr. Fat has few good friends. (改为反意疑问句)
Mr. Fat has few good friends, _______________ _______________?
15．He has never been abroad.（改为反意疑问句）
He has never been abroad, __________ __________ ?
（五）变同义句
1.复合句变简单句
a. 宾语从句变为特殊疑问词+________
① Jack’s grandmother doesn’t know how she can use the iPad. (2012年)
Jack’s grandmother doesn’t know how ___________ __________ the iPad.
② Could you tell me how I can get to the nearest supermarket? (2013年)
Could you tell me _________ ___________ to the nearest supermarket?
③ Can you tell me how I can get to the bank?
Can you tell me _________ _________ get to the bank?
b. 宾语从句变为 v. + sb doing
④ We noticed that he was standing at the school gate.
We noticed _________ ___________ at the school agte.c. 条件状语从句”If not….”可转化为“祈使句+ or….”或“unless…”
⑤ If you don’t read the exam questions carefully, you’ll make some mistakes.
________ the exam questions carefully, _______ you’ll make some mistakes.
You ________ make any mistakes __________ you read the exam questions carefully.
d. so… that… = too… to… = (not) … enough to…
⑥ The box is so heavy that we can’t carry it.
The box is _________ heavy for us __________ carry it.
⑦ The kid is so young that he can’t go to school.
The kid __________ __________ enough to go to school.
e. because + 句子 变为 because of + n.
⑧ We couldn’t see anything because it rained hard.
We couldn’t see anything ___________ ___________ the heavy rain.
2. 简单句变复合句
a. in order to do = so that…
④ You could save money in order to buy a gift for your friend’s birthday.
You could save money ___________ ____________ you can buy a gift for your friend’s birthday.
b. at the age of four = When he was four
⑤ Li Yundi began to learn the accordion at the age of four. (2008年)
Li Yundi began to learn the accordion ___________ he __________ four years old.
c. 变祈使句
⑥ Our math teacher Mr. Smith told us to be quiet in class.（2014年）
Our math teacher Mr. Smith said to us: “___________ ___________ in class.”
3. 变感叹句
What + a/an + adj. +cn. + （主谓）!
What + adj. + un. + （主谓）!
How + adj./ adv. + (the 主 + 谓) ！
① It’s a very interesting story.
____________ ____________ interesting story it is!
② The little boy is very clever （2012年）
__________ ___________ the little boy is!
③ The weather is fine.
____________ ____________ weather it is!4. so/ neither 的倒装
so 有肯定含义，neither 有否定含义， be动词、助动词和情态动词要置于主语的________。
① Jim wants to go boating and his cousins want to go boating, too.
Jim wants to go boating, and ________ ________ his cousins.
② Mr. Wang has been to Singapore? I’ve been there, too.
Mr. Wang has been to Singapore. __________ ___________ I.
5. 同义词组句型转换
高频考点：
(1) so…that… = too…to… = not … enough to…
(2) favorite → like… best
(3) prefer = like… better
(4) take, spend, cost, pay
(6) it 作形式主语或宾语
(7) if not… = 祈使句，or…
(8) 提建议：How/ What about doing? = Why don’t you do? = Why not do? = Would you mind doing? = Would
you like to do? = Could you please do? = Shall I/ we do? = Let’s do. = You’d better do.
(9) after… = not… until
(10) have a great time doing = have fun doing= enjoy oneself doing
(11) 比较级、最高级 （taller than any other… = the tallest）
(12) not… = without doing
(13) instead = instead of
(14) unless = if not…
(15) at the age of 4 = when he was 4
(16) nothing = not… anything
(17) 问感受、评价 How you like…? = What do you think of…? = How do you feel about…?
(18) refuse = turn down
(19) not the same as = be different from
(20) be good at = do well in
(21) thanks to = because of
(22) be similar to = look like = take after
(23) borrow … from… = lend … to…(24) make sb happy = cheer sb up
(25) in order to do = so that…
(26) alone = by oneself
(27) think up = come up with
(28) not… any longer = no longer…
(29) try/ do one’s best to do= go out of one’s way to do = make an effort to do
(30) What’s the matter? = What’s wrong?
【专练】
1．My sister teaches herself English. (改为同义句)
My sister learns English _______________.
2．They needn’t sweep the snow right now. (改为同义句)
________________ for them to sweep the snow right now.
3．He is too young to attend school. （改为同义句）
He is _______ _______ _______ _______ attend school.
4．She sings best in her class. (同义句转换）
She sings better than ________ ________ student in her class.
5．His father joined the Party two years ago.（同义句转换）
His father ________ ________ a member of the Party for two years.
6．It took Mike half an hour to work out the problem.(改为同义句)
Mike ________ half an hour ________ out the problem.
7．We have studied at this school for three years.(改为同义句)
________ three years since we ________ to study at this school.
8．They asked their teacher when they should hand in the project. （保持句意基本不变）
They asked their teacher ________ ________ hand in the project.
9．We must develop a green lifestyle. （保持句意基本不变）
________ necessary for us ________ develop a green lifestyle.
10．Nobody else is cleverer than Daniel in his class. (同义句改写)
Daniel is ________________ student in his class.
11．Tim writes most carefully in his class. (改为同义句)
Tim writes _______ _______ than any other student in his class.
12．After I finished my work, I went to bed.（保持句意不变）I ________ go to bed __________ I finished my work.
13．They arrived at the airport successfully in the end. (保持句意基本不变)
They arrived at the airport successfully ________ ________.
14．Benny is clever enough to write an English letter on his own. (保持原句意思不变）
Benny is ________ clever ________ he can write an English letter on his own.
15．His father stopped smoking last month. (改为同义句)
His father _________ ________ ___________ last month.
16．He is good at playing football.
He ______ ______ ____ playing football.
17．My friend Tony lent me some money.（改为同义句）
I ________ some money ________ my friend Tony.
18．Alan bought the dictionary two weeks ago.（改为同义句）
Alan ________ ________ the dictionary for two weeks.
19．You can ask my mother by yourself. （改为同义句）
You can ask my mother ________ ________.
20．I asked for part-time jobs in small radio stations when I was nine years old.（改为同义句）
I asked for part-time jobs in small radio stations ________ ________ ________ ________ nine.
