中考英語語法知識祈使句

1. 總結英語祈使句的結構及句式

祈使句表示請求、命令、勸說、號召、警告等。表示委婉的祈使語氣，可在句首或句末加上please，若在句末加please，之前要用逗號隔開。祈使句有肯定祈使句與否定祈使句兩種。

1. 肯定祈使句的常見句型結構：

① Do型：動詞原形+賓語+其他. 如：Open the door, please.

② Be型：Be+表語. 如：Be a good boy!

③ Let型：Let+賓語+動詞原形+其他. (或：Let』s+動詞原形+其他.) 如：Let me help you. 又如：Let』s play tennis.

2. 否定祈使句的常見句型結構：

① Do型和Be型的否定式：Don』t+動詞原形 / be+其他. 如：Don』t forget me.

又如：Don』t be late.

② Let型的否定式：Don』t+let+賓語+動詞原形+其他. (或：Let』s+not+動詞原形+其他)

如：Don』t let him go back. 又如：Let』s not go swimming.

③ 警示語：No+名詞 / 動詞-ing形式. 如：No talking.

(1)中考英語語法知識祈使句擴展閱讀

用於表達命令、請求、勸告、警告、禁止等的句子叫做祈使句.祈使句的作用是要求、請求或命令、勸告、建議別人做或不做一件事。祈使句的句末一般用感嘆號，但是有些祈使句的語氣較弱，可以用句號結尾。

祈使句因對象（即主語）是第二人稱，所以通常都省略。

祈使句的動詞都為一般現在時，例：Go and wash your hands.例如：保持肅靜！Be kind to our sister. Watch your steps. 表示禁止的句式有：不準、不要、別、No parking.

2. 有關英語中祈使句的知識

肯定就是以動詞原形開頭
Open
the
door.
否定以Don't
開頭
Don't
open
the
door.
都固定了,沒變化

3. 祈使句英語語法

一篇文章拿下全部英語祈使句句型和祈使句知識

1] 以動詞原形開頭的句子常常是「祈使句」， 意思是：「請你……」，「你要……」

否定式：在動詞前加don』t

2] 祈使句還可以加上

[1] please，意思是「請你……」，比用動詞原形有禮貌。

否定式：在動詞前加don』t

[2] shall I, shall we, 意思是：我做某事好嗎？我們做某事好嗎？

will you, would you意思是：你做某事好嗎？你們做某事好嗎？

[3] let』s意思是：讓我們一起做某事吧；意思是let us 請你讓我們做某事吧。

[4] 加重語氣用do+動詞原形， 絕不用never+動詞原形

[5]緩和語氣用please， Could you please

[6]商量語氣用

Can you /Could you 你能……嗎/好嗎，

Will you/Would you 你願意嗎/好嗎？

will you 你做某事好嗎？

shall we 我們做某事好嗎

1

下面可能是上學時媽媽要交待的話

1] Turn off the light and the fans [你要]關燈和扇子

2] Take your key with you [你要]把鑰匙帶上。

3] Remember to take your schoolbag [你要]記得拿你的書包。

4] Don』t forget to put on more clothes [你]不要忘記穿多一點衣服。

5] Don』t leave your umbrella at school [你]不要把雨傘忘在學校。

6] Look at the traffic lights [你要]看紅綠燈。

7]Never run across the road [你]絕對不要跑過馬路。

8] Be careful on the road [你]在路上要小心。

9] Be quiet and serious in the classroom [你]在教室要安靜而嚴肅。

10] Be polite to your teachers and classmates [你要]對你的老師和同學要有禮貌。

11] Don』t be naughty [你]不要頑皮。

12] Never go to netbars. [你]絕對不去網吧。

13] Don』t be late. [你]不要遲到。

14] Do come back home on time [你]一定要按時回家。 do[does did]＋動詞：一定。

15] Please clean the house, will you? [請你]打掃房子,好嗎？

16] Could you please cook something for yourself? 你自己煮些東西吃好嗎？

17] Would you please wash the bowls 你洗碗好嗎？

18] Let』s say goodbye here, shall we? 我們在此說再見，好嗎？

4. 中考英語語法

語法：
a.主謂賓：I
love
you
；
b.
主謂：bird
fiys
;
c.
主謂賓+賓補：
l
love
you
money。
d.
主謂直賓+間賓：I
can
give
my
heart
to
you
,其中，my
heart，直賓；you，
e.
it
says
that
…，其中，it
是形式主
語；it
is
the
time
for
somebody
to
do，
其中，
間賓；主語是「somebody」
，it
代指
時間，作狀語。
f.
定語：
N+
who、whom、whose、which、that+句子。
虛擬語氣：a.{公式：ⅰ.對過去的虛擬：主句是「一般過去時」；從句是「過去完
成時(had
have
done)」。ⅱ.對過去的虛擬：主句是」一般過去時（would/could+do）
從句是」過去將來時(would/could/have
done)「}
。
b.其他形式：這些都包括：命令、要求、願望等心理性的活動（公式：
should/could/would+do+had
have
done/would
have
done/could
have
done
）。
g.形式賓語：
主語+心理性動詞（如愛、恨、後悔等）+it
+句子（解釋it的）
f.形式主語：
it
says、reads等動詞
+that
從句
；
it
is
+形容詞/動詞的被動式/(of+名詞=adj).
h.祈使句：動詞原形引導的，可以看做是省略主語的含有命令、希望、督促等作用的短句
！
i.省略句：a.就是主語一致時可以省略從句的主語；
b.還有就是類似於
祈使句的；c.還有就是可以省略動詞後面的解釋性質的句子或其他......
j.倒裝句：主謂倒裝：如，
Comes
a
bus
here!
全倒裝：
就是作為狀語的詞或句子等前置+主謂倒裝
！

5. 英語祈使句的三種方法是什麼

1、祈使句(Imperative Sentence)是英語中的一個句式，也是用於表達命令、請求、勸告、警告、禁止等的句子。祈使句最常用於表達命令，因此在學校文法中也常稱為命令句。

2、祈使句(Imperative Sentence)用於表達命令、請求、勸告、警告、禁止等的句子叫做祈使句，祈使句最常用於表達命令，因此在學校文法中也常稱為命令句。

3、祈使句因對象(即主語)是第二人稱，所以通常都省略。祈使句的動詞都為一般現在時，句末則使用感嘆號來表示結束。

4、祈使句的肯定句式常見的有三種形式：

1)Do型（以行為動詞原形開頭），例如：Sit down 坐下！ Stand up 起立！

2)Be型（以be開頭），例如：Be quiet 安靜！

3)Let型 （以let開頭），含有let的祈使句可分為兩種類型: 一種是「Let＋名詞／代詞＋動詞原形」結構。 Let me help you. 讓我來幫助你。 另一種是以let's開頭的，它是一種特殊形式的祈使句，它並不是「命令，請 求」對方做某事，而是說話者要與對方一起去做某事，常譯為「咱們……」。 Let's go to the park．咱們一起去公園吧。

6. 英語語法，祈使句

祈使句代表一種來感情色彩，源不僅僅是用於表示請求或命令，還有很多，比如請願，希望等等，有很多很多，make
the
change，根據說話人的語境看他是帶有什麼色彩。
你不要拘泥於「表示請求或命令」這些祈使句的用法小方面，一般你用不帶主語的動詞開始一句話都是可以的，都是可以理解為其中之一的感情色彩，你不用去管他到底是命令或請求什麼的，反而這會讓你頭疼糾結。

7. 求取：初三英語全部語法知識

. 一般現在時的用法

1) 經常性或習慣性的動作，常與表示頻腮度的時間狀語連用。
時間狀語： every…, sometimes, at…, on Sunday
I leave home for school at 7 every morning.

2) 客觀真理，客觀存在，科學事實。
The earth moves around the sun.
Shanghai lies in the east of China.
3) 表示格言或警句中。
Pride goes before a fall. 驕者必敗。

注意：此用法如果出現在賓語從句中，即使主句是過去時，從句謂語也要用一般現在時。
例：Columbus proved that the earth is round..

4) 現在時刻的狀態、能力、性格、個性。
I don』t want so much.
Ann Wang writes good English but does not speak well.
比較：Now I put the sugar in the cup.
I am doing my homework now.
第一句用一般現在時，用於操作演示或指導說明的示範性動作，表示言行的瞬間動作。再如：Now watch me, I switch on the current and stand back. 第二句中的now是進行時的標志，表示正在進行的動作的客觀狀況，所以後句用一般現在時。
2. 一般過去時的用法

1）在確定的過去時間里所發生的動作或存在的狀態。
時間狀語有：yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?

2）表示在過去一段時間內，經常性或習慣性的動作。
When I was a child, I often played football in the street.
Whenever the Browns went ring their visit, they were given a warm welcome.

3）句型：
It is time for sb. to do sth "到……時間了" "該……了"
It is time sb. did sth. "時間已遲了" "早該……了"
It is time for you to go to bed. 你該睡覺了。
It is time you went to bed. 你早該睡覺了。
would (had) rather sb. did sth. 表示』寧願某人做某事』
I』d rather you came tomorrow.

4) wish, wonder, think, hope 等用過去時，作試探性的詢問、請求、建議等。
I thought you might have some. 我以為你想要一些。

比較：
一般過去時表示的動作或狀態都已成為過去，現已不復存在。
Christine was an invalid all her life.
(含義：她已不在人間。)
Christine has been an invalid all her life.
(含義：她現在還活著)
Mrs. Darby lived in Kentucky for seven years.
(含義：達比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含義：現在還住在肯塔基州，有可能指剛離去)

注意： 用過去時表示現在，表示委婉語氣。
1）動詞want, hope, wonder, think, intend 等。
Did you want anything else?
I wondered if you could help me.
2）情態動詞 could, would.
Could you lend me your bike?
3. used to / be used to

used to + do："過去常常"表示過去習慣性的動作或狀態，但如今已不存在。
Mother used not to be so forgetful.
Scarf used to take a walk. (過去常常散步)

be used to + doing： 對……已感到習慣，或"習慣於"，to是介詞，後需加名詞或動名詞。
He is used to a vegetarian diet.
Scarf is used to taking a walk.(現在習慣於散步)

典型例題
---- Your phone number again? I ___ quite catch it.
---- It』s 69568442.
A. didn』t B. couldn』t C. don』t D. can』t
答案A. 本句雖沒有明確的時間狀語，但從語意上看 出，在聽的時候沒有聽懂這個動作發生在過去，因此應用過去時。
4. 一般將來時

1) shall用於第一人稱，常被will 所代替。
will 在陳述句中用於各人稱，在爭求意見時常用於第二人稱。
Which paragraph shall I read first.
Will you be at home at seven this evening?

2) be going to +不定式，表示將來。
a. 主語的意圖，即將做某事。
What are you going to do tomorrow?
b. 計劃，安排要發生的事。
The play is going to be proced next month。
c. 有跡象要發生的事
Look at the dark clouds, there is going to be a storm.

3) be +不定式表將來，按計劃或正式安排將發生的事。
We are to discuss the report next Saturday.

4) be about to +不定式，意為馬上做某事。
He is about to leave for Beijing.
注意：be about to 不能與tomorrow, next week 等表示明確將來時的時間狀語連用。
5. be going to / will

用於條件句時， be going to 表將來
will 表意願
If you are going to make a journey, you』d better get ready for it a s soon as possible.
Now if you will take off your clothes, we will fit the new clothes on you in front of the mirror.
6. be to和be going to

be to 表示客觀安排或受人指示而做某事。
be going to 表示主觀的打算或計劃。
I am to play football tomorrow afternoon. (客觀安排)
I』m going to play football tomorrow afternoon. (主觀安排)
7. 一般現在時表將來

1）下列動詞：come, go, arrive, leave, start, begin, return的一般現在時表將來。這主要用來表示在時間上已確定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.

2）倒裝句，表示動作正在進行，如：
Here comes the bus. = The bus is coming.
There goes the bell. = The bell is ringing.

3）在時間或條件句中。
When Bill comes (不是will come), ask him to wait for me.
I』ll write to you as soon as I arrive there.

4）在動詞hope, take care that, make sure that等後。
I hope they have a nice time next week.
Make sure that the windows are closed before you leave the room.
11. 用於現在完成時的句型

1）It is the first / second time…. that…結構中的從句部分，用現在完成時。
It is the first time that I have visited the city.
It was the third time that the boy had been late.

2）This is the… that…結構，that 從句要用現在完成時.
This is the best film that I』ve (ever) seen.
這是我看過的最好的電影。
This is the first time (that) I』ve heard him sing. 這是我第一次聽他唱歌。

典型例題
(1) ---Do you know our town at all?
---No, this is the first time I ___ here.
A. was B. have been C. came D. am coming
答案B. This is the first time 後面所加從句應為現在完成時，故選B。

(2) ---Have you ____ been to our town before?
---No, it』s the first time I ___ here.
A. even, come B. even, have come C. ever, come D. ever, have come
答案D. ever意為曾經或無論何時，反意詞為never，此兩詞常用於完成時。 This is the largest fish I have ever seen. It is / was the first time +that-clause 的句型中，從句要用完成時。
注意：非延續性動詞的否定形式可以與表示延續時間的狀語連用。即動作不發生的狀態是可以持續的。
（錯）I have received his letter for a month.
（對）I haven』t received his letter for almost a month.
12. 比較since和for

Since 用來說明動作起始時間，for用來說明動作延續時間長度。
I have lived here for more than twenty years.
I have lived here since I was born..
My aunt has worked in a clinic since 1949.
Some new oilfields have been opened up since 1976.
I have known Xiao Li since she was a little girl.
My brother has been in the Youth League for two years.
I have not heard from my uncle for a long time.

注意：並非有for 作為時間狀語的句子都用現在完成時。
I worked here for more than twenty years.
(我現在已不在這里工作。)
I have worked here for many years.
(現在我仍在這里工作。)

小竅門： 當現在完成時+一段時間，這一結構中，我們用下面的公式轉化，很容易就能排除非延續動詞在完成時中的誤使。
1) (對) Tom has studied Russian for three years.
= Tom began to study Russian three years ago, and is still studying it now.
2) (錯) Harry has got married for six years.
= Harry began to get married six years ago, and is still getting married now.
顯然，第二句不對，它應改為 Harry got married six years ago. 或 Harry has been married for six years.
13. since的四種用法

1) since +過去一個時間點 (如具體的年、月、日期、鍾點、1980, last month, half past six)。
I have been here since 1989.

2) since +一段時間+ ago
I have been here since five months ago.

3) since +從句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.

4) It is +一段時間+ since從句
It is two years since I became a postgraate student.
被動語態的幾種類型
1）主語句中有一個賓語的被動語態，如：
He saw her in the shop yesterday.
She was seen in the shop yesterday.
2) 主語有兩個賓語的被動語態
Li Lei gave me a chemistry book.
I was given a chemistry book by Li Lei.
A chemistry book was given to me by Li Lei.
3）主動句中含賓語補足語的句子的被動語態
若賓語補足語是不帶to 的不定式，變為被動語態時，該不定式前要加"to"。此類動詞為
感官動詞：feel, hear, help, listen to, look at, make, observe, see, notice, watch
The teacher made me go out of the classroom.
--> I was made to go out of the classroom (by the teacher).
We saw him play football on the playground.
--> He was seen to play football on the playground.
若賓語補足語是帶to的不定式，那麼被動語態仍保留to:
Mother told me not to be late
I was told not to be late by mother.
5）情態動詞+ be +過去分詞，構成被動語態。
Coal can be used to proce electricity for agriculture and instry.
6）表示"據說"或"相信" 的片語
 believe, consider, declare, expect, feel , report, say, see, suppose, think, understand
It is said that… 據說
It is reported that… 據報道
It is believed that… 大家相信
It is hoped that… 大家希望
It is well known that… 眾所周知
It is thought that… 大家認為
It is suggested that… 據建議
It is taken granted that… 被視為當然
It has been decided that… 大家決定
It must be remember that…務必記住的是
It is said that she will leave for Wuhan on Tuesday.
14. 延續動詞與瞬間動詞

1) 用於完成時的區別
延續動詞表示經驗、經歷； 瞬間動詞表示行為的結 果，不能與表示段的時間狀語連用。
He has completed the work. 他已完成了那項工作。 (表結果)
I』ve known him since then. 我從那時起就認識他了。(表經歷)

2) 用於till / until從句的差異
延續動詞用於肯定句，表示"做……直到……" 瞬間動詞用於否定句，表示"到……，才……"
He didn』t come back until ten o』clock.
他到10 點才回來。
He slept until ten o』clock.
他一直睡到10點。

典型例題
1. You don』t need to describe her. I ___ her several times.
A. had met B. have met C. met D. meet
答案B. 首先本題後句強調對現在的影響，我知道她的模樣，你不用描述。再次，several times告知為反復發生的動作，因此用現在完成時。

2.---I』m sorry to keep you waiting.
---Oh, not at all. I ___ here only a few minutes.
A. have been B. had been C. was D. will be
答案A. 等待的動作由過去開始，持續到現在，應用現
. 不定式作賓語

1) 動詞+ 不定式
afford aim appear agree arrange ask be decide bother care choose come dare demand desire determine expect elect endeavor hope fail happen help hesitate learn long mean manage offer ought plan prepare pretend promise refuse seem tend wait wish undertake
舉例：
The driver failed to see the other car in time.
司機沒能及時看見另一輛車。
I happen to know the answer to your question.
我碰巧知道你那道問題的答案。

2）動詞+不定式 ； 動詞+賓語+不定式
ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish…
I like to keep everything tidy. 我喜歡每件東西都保持整潔。
I like you to keep everything tidy. 我喜歡你年使每件東西都保持整潔。
I want to speak to Tom. 我想和湯姆談話。
I want you to speak to Tom. 我想讓你和湯姆談話。

3） 動詞+疑問詞+ to
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 請演示給我們如何去做。
There are so many kinds of tape-recorders on sale that I can』t make up my mind which to buy.有這么多的錄音機，我都拿不定主意買哪一種。

注意:疑問詞帶不定式在句中作成分時，謂語動詞用單數。
The question is how to put it into practice.
問題是怎樣把它付諸實施。
2. 不定式作補語

1) 動詞+賓語+不定式(to do)
advise allow appoint believe cause challenge command compel consider declare drive enable encourage find forbid force guess hire imagine impel ince inform instruct invite judge know like order permit persuade remind report request require select send state suppose tell think train trust understand urge warn

例句：
a. Father will not allow us to play on the street.
父親不讓我們在街上玩耍。
b. We believe him to be guilty.
我們相信他是有罪的。

Find 的特殊用法：
Find 後可用分詞做賓補，或先加形式賓語，再加形容詞，最後加帶to 的動詞不定式。find後也可帶一個從句。此類動詞還有get，have。
I found him lying on the ground.
I found it important to learn.
I found that to learn English is important.
典型例題:
The next morning she found the man ___ in bed，dead.
A. lying B. lie C. lay D. laying
答案：A.find的賓語後面，用分詞或分詞短語，起賓語補足語作用。現在分詞表達主動，也表達正在進行，過去分詞表達被動。

2) to + be 的不定式結構，作補語的動詞。
Acknowledge, believe, consider, think, declare(聲稱), discover, fancy(設想), feel find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以為), understand
We consider Tom to be one of the best students in our class.
我們認為湯姆是班上最好的學生之一。

典型例題
Charles Babbage is generally considered ___ the first computer.
A. to invent B. inventing C. to have invented D. having invented
答案：A. 由consider to do sth. 排除B、D。. 此句只說明發明這一個事實，不定式後用原形即可。而C為現在完成時，發明為點動詞一般不用完成時，且此處也不強調對現在的影響，因此不選C。

3) to be +形容詞
Seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean…
The book is believed to be uninteresting.
人們認為這本書沒什麼意思。

4) there be+不定式
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
We didn』t expect there to be so many people there.我們沒料到會有那麼多人在哪裡。
注意 ： 有些動詞需用as 短語做補語，如regard, think believe, take, consider.
We regard Tom as our best teacher. 我們認為湯姆是我們最好的老師。
Mary took him as her father . 瑪麗把他當作自己的父親。
. 不定式作主語

1） It』s easy (for me) to do that.我做這事太容易了

easy, difficult, hard, important, possible, impossible, comfortable, necessary, better;
the first, the next, the last, the best, too much, too little, not enough
It』s so nice to hear your voice.
聽到你的聲音真高興。
It』s necessary for you to lock the car when you do not use it.
當你不用車的時候，鎖車是有必要的。

2) It』s very kind of you to help us. 他幫助我們，他真好。
Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考慮周到的), silly, selfish(自私的)
例句:
It was silly of us to believe him. 我們真愚蠢，竟然相信了他。
It seemed selfish of him not to give them anything. 他不給他們任何東西，這顯得太自私了。

注意：1) 其他系動詞如，look，appear等也可用於此句型
2) 不定式作為句子成分時，動詞用單數形式。
3) 當不定式作主語的句子中又有一個不定式作表語時，不能用It is… to…的句型
(對)To see is to believe. 百聞不如一見。
(錯)It is to believe to see.
4. It』s for sb.和 It』s of sb.

1）for sb. 常用於表示事物的特徵特點，表示客觀形式的形容詞，如easy, hard, difficult, interesting, impossible等：
It』s very hard for him to study two languages. 對他來說學兩門外語是很難的。
2）of sb的句型一般用表示人物的性格，品德，表示主觀感情或態度的形容詞，如good, kind, nice, clever, foolish, right。
It』s very nice of you to help me. 你來幫助我，你真是太好了。

for 與of 的辨別方法：
用介詞後面的代詞作主語，用介詞前邊的形容詞作表語，造個句子。如果道理上通順用of，不通則用for。如：
You are nice. (通順，所以應用of)。
He is hard. (人是困難的，不通，因此應用for。)
3) 祁使句（Imperative Sentence）
祈使句往往是用來表示說話人的請求、命令、要求、建議，等等。祈使句的主語常被省略，因為這個主語很明確地是聽話人"you"。當然，有時為了強調或表示某種感情，句子也會帶上主語。
祈使句的謂語用動詞原形；它的否定形式是句首用Don't + 動詞原形，或是Not to + 動詞原形。例如：
Be quiet , please ! （大家）請安靜。
Stand up ! 起立！
Don't smoke in the office . 請不要在辦公室吸煙。
Don't be standing in the rain . 別站在雨里。
Not to be careless when you're driving a car . 開車時不要粗心大意。
4) 感嘆句（Exclamatory Sentence）
感嘆句表示說話人的喜悅、氣憤、驚訝等強烈的情緒。這類句子中，有很多是由What或How引起的。What 用來強調名詞，How則強調形容詞、副詞或動詞。這類句子的構成只需將所強調或是說，所感嘆的對象放到句首；句子無需倒裝，句子要用正常語序。 當然，如果不用這種句型，而句子（無論是那種句子）本身又表示了上述的種種情緒，那麼該句也就成了感嘆句。例如：
What a fine day it is today ! 今天天氣多好啊！
How fine it is today ! 今天天氣多好啊！
What a lovely son you have !你有個多可愛的兒子啊！
How lovely your son is ! 你的兒子多可愛
如果還有什麼不明白 請問我 隨時恭候 我英語今年高考可考了120多啊

8. 祈使句的結構是什麼英語語法

祈使抄句用以表達命令,要求,請求,勸告等.
1） 祈使句有兩種類型,一種是以動詞原形開頭,在動詞原形之前加do (但只限於省略第二人稱主語的句子).
Take this seat.
Do be careful.
否定結構：
Don't move.
Don't be late.
2） 第二種祈使句以let開頭.
Let 的反意疑問句
a. Let's 包括說話者
Let's have another try,shall we / shan't we?
= Shall we have another try?
b. Let us 不包括說話者
Let us have another try,will you / won't you?
= Will you please let us have another try?
否定結構：
Let's not talk of that matter.
Let us not talk of that matter.

9. 英語語法 什麼是祈使句結構用法

祈使句
祈使句表示請求、命令、建議等等.謂語動詞一律用原形.句子中通常不用主語,句末用驚嘆號或者句號,用降調.
1含有第二人稱主語的祈使句
Be careful!小心!
Don''t make such a noise.不要這么吵.
1.肯定的祈使句
a.句型：動詞原形～.（省略主語）
Stand up.起立.
Be quiet,please.請安靜.
b.有時,為了加強語氣,可以在動詞之前加do
Do sit down.
務必請坐.
Do study hard.
一定要努力學習.
比較
祈使句和陳述句陳述句：
You sit down.
你坐下來.
祈使句：
Sit down.坐下
（省略主語you）
c.用客氣的語氣表示祈使句時,可在句首或句尾加上please,但如果在句尾加please,那在please之前一定要加一個逗號「,」.
Go this way,please.
請這邊走.
d.祈使句中如果有喚語,一定要用逗號「,」隔開,放在句首或句尾.
Li Ming,come here.
李明,過來.
Come here,Li Ming.
過來,李明.
2.否定的祈使句
句型：Don''t +動詞原形～
Don''t swim in the river.
別在河裡游泳.
Don''t be late.別遲到.
Please don''t be noisy.
請不要大聲喧嘩.
注意
表示禁止時,尤其是標語等也可用「No+動名詞」來表示.
No smoking.
禁止吸煙.
No parking.
禁止停車.
句型轉換
祈使句與陳述句的改寫
1．祈使句=You must …（陳述句）
Come here .過來.
=You must come here .
你必須過來.
Don''t do that again.
你一定不可以再那樣做了.
2．Please +祈使句=Will you (please) （陳述句）
Please help me .請幫幫我.
=Will you (please) help me?
你願意幫我的忙嗎?
Come here on time ,please .請准時到這兒.
=Will you (please) come here on time
請你准時到好嗎?
2含有第一、第三人稱主語的祈使句
Let''s say good-by here.
我們在此道別吧.
Don''t let him do that again.
別讓他再那麼做了.
1.肯定的祈使句
句型：·Let+第一人稱（me,us）～.
·Let+第三人稱代詞（賓格：him,her,it,them）或名詞～.
Let''s go at once.
咱們馬上動身吧.
Let me try again.
讓我再試試.
Let Tom go there himself.
讓湯姆自己去那兒.
注意
Let''s包括對方,Let us不包括對方.反意疑問句時最明顯.
Let''s go,shall we?
咱們去吧,怎麼樣?
Let us go,will you?
讓我們去吧,行嗎?
（徵求對方的意見）
2.否定的祈使句
句型：·Let''s（us,me）+not +動詞原形～.
·Don''t let +第三人稱代詞的賓格或名詞+動詞原形.
Let''s not say anything about it.
對於這件事,咱們什麼也不要說.
Don''t let them play with fire.
別讓他們玩火.
句型轉換
祈使句有時相當一個if引導的條件狀語從句.
祈使句：Use your head and you''ll find a way.
條件句：If you use your head,you''ll find a way.
如果你動動腦筋,你就會找到方法.
注意
回答Let''s～的反意疑問句句型時,肯定時用Yes,let''s.否定時用NO,let''s not.
祈使句變反意疑問句的方法：
祈使句後的反意疑問句形式
a,Let's表示說話人向對方提出建議,簡短問句的主語用 we表示,問句用 shall we或 shan't we 如:Let's have a cup of tea ,shall we (shan't we)
b,Let me或 Let us表示聽話人提出請求,問句用 will you或 won't you .
Let me have a rest ,will you (won't you )
c,其它的祈使句後可以加一個簡短問句,使語氣變得客氣一些.
如:Have a rest ,will you
Stand up ,will (won't) you