五年級英語上冊第三單元句型及語法知識
上學期間，很多人都經(jīng)常追著老師們要知識點吧，知識點就是學習的重點。掌握知識點有助于大家更好的學習。下面是小編為大家整理的五年級英語上冊第三單元句型及語法知識，希望能夠幫助到大家。
五年級英語上冊第三單元句型及語法知識 篇1
關(guān)于一般過去時的語法：
1、一般過去時表示過去某個時間發(fā)生的動作或存在的狀態(tài)，常和表示過去的時間狀語連用。一般過去時也表示過去經(jīng)�；蚍磸桶l(fā)生的動作感謝。
2、Be動詞在一般過去時中的變化：
�、臿m和is在一般過去時中變?yōu)閣as。(wasnot=wasn’t)
⑵are在一般過去時中變?yōu)閣ere。(werenot=weren’t)
�、菐в衱as或were的句子，其否定、疑問的變化和is, am,are一樣，即否定句在was或were后加not，一般疑問句把was或were調(diào)到句首。
3、句中沒有be動詞的一般過去時的句子否定句：didn’t +動詞原形，如：Jim didn’t go home yesterday.一般疑問句：在句首加did，句子中的動詞過去式變回原形。如：Did Jim go home yesterday?特殊疑問句：
�、乓蓡栐~+did+主語+動詞原形?如：What did Jim do yesterday?
�、埔蓡栐~當主語時：疑問詞+動詞過去式?如：Whowent to home yesterday?
一般現(xiàn)在時語法解析：
1、經(jīng)常性或習慣性的動作，常與表示頻度的時間狀語連用。
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(xiàn)在賓語從句中，即使主句是過去時，從句謂語也要用一般現(xiàn)在時。
例：Columbus proved that the earth is round..
4、現(xiàn)在時刻的狀態(tài)、能力、性格、個性。
I don't want so much.
Ann Wang writes good English but does not speak well.
【比較】
1、Now I put the sugar in the cup.
2、I am doing my homework now.
現(xiàn)在進行時：表示現(xiàn)在正在進行的動作。
構(gòu)成：主語+be動詞+動詞的現(xiàn)在分詞+其它成分
We are having lunch.
He is reading a book.
The dog is running after a cat.
The boys are swimming across the river.
變疑問句將be動詞移到句首
Are we having lunch?
Is he reading a book?
Is the dog running after a cat?
Are the boys swimming across the river?
變否定句在be動詞后面加not
We are not having lunch.
He is not reading a book.
The dog is not running after a cat.
The boys are swimming across the river.
特殊疑問句：what, which, how, where, who, etc.
疑問詞+動詞+主語+現(xiàn)在分詞
What are you doing?
What is she doing?
What is the dog doing?
沒有進行時的動詞(必背)
表示狀態(tài)，思想，感情和感覺的動詞不能表示正在進行的動作
1.表示感覺，感官的詞
see, hear, like, love, want,
2. have, has當擁有講時沒有進行時
五年級英語上冊第三單元句型及語法知識 篇2
用法：在過去的時間里，兩個動作中，發(fā)生在前的那個動作要用過去完成時。
結(jié)構(gòu)：had+過去分詞
After she had finished her homework, she went shopping.
They had sold the car before I asked the price.
The train had left before I arrived at the station.
After/before引導的時間狀語從句放在句首要在句子后面加逗號，如果放在主句后則不用加。
1.變疑問句將助動詞移到句首
Had she finished her homework?
2.變否定句在助動詞后面加not
She hadn’t finished her homework.
3.肯定回答及否定回答
Yes, she had. No, she hadn’t.
4.特殊疑問句：
What had she done?
五年級英語上冊第三單元句型及語法知識 篇3
表示過去發(fā)生的動作或事件，常和表示過去的時間狀語連用，如yesterday, last night, the day beforeyesterday, 3 days ago,
含有be動詞的句子，將動詞變?yōu)檫^去式，am, is的過去式為was，are的過去式為were
I was at the butcher’s.
You were a student a year ago.
The teacher was very beautiful ten years ago.
變疑問句將be動詞移動到句首
Were you at the butcher’s?
Were you a student a year ago?
Was the teacher very beautiful ten years ago?
變否定句在be動詞后面加not
I was not at the butcher’s.
You were not a student a year ago.
The teacher was not very beautiful ten years ago.
肯定回答否定回答
Yes, I was. No, I was not.
Yes, you were. No, you were not.
Yes, he/she was. No, he/she was not.
特殊疑問句：
What did you do?
(必背)
不含有be動詞的句子，將動詞變?yōu)檫^去式
I finished my homework yesterday.
The boy went to a restaurant.
The Sawyers lived at King Street a year ago.
變疑問句在句首加did，動詞變?yōu)樵?/p>
Did you finish your homework yesterday?
Did the boy go to a restaurant?
Did the Sawyers live at King Street a year ago?
變否定句在主語和動詞之間加did not
I did not finish my homework yesterday.
The boy did not go to a restaurant.
The Sawyers did not live at King Street a year ago.
肯定回答及否定回答
Yes, I did. No, I didn’t.
Yes, he did. No, he didn’t.
Yes, they did. No, they did not.
五年級英語上冊第三單元句型及語法知識 篇4
表示將來將要發(fā)生的.動作，經(jīng)常和tomorrow, next year, the day after tomorrow, the year afterthe next, in five hours' time, etc.表示將來的詞聯(lián)用。
結(jié)構(gòu)：主語+助動詞will+動詞原形
I will go to America tomorrow.
The pilot will fly to Japan the month after the next.
Jack will move into his new house tomorrow morning.
變疑問句將助動詞移到句首
Will you go to America tomorrow?
Will the pilot fly to Japan the month after the next?
Will Jack move into his new house tomorrow morning?
變否定句在助動詞后面加not
I will not go to America tomorrow.
The pilot will not fly to Japan the month after the next.
Jack will not move into his new house tomorrow morning.
肯定回答及否定回答
Yes, I will. / No, I will not.
Yes, he/she will. / No, he/she will not.
Yes, he will. / No, he will not.
特殊疑問句
What will you do?
五年級英語上冊第三單元句型及語法知識 篇5
句子的主謂賓
[1]Therebe句型，接真正主語，介詞短語放后面，這兒有什么東西在什么地方
①這兒有十支鉛筆在藍色的盒子里。Therearetenpencilsinthebluebox.
�、谶@兒有足夠的鉛筆。Thereareenoughpencils.
�、圻@兒有很多的書在桌子上。Therearemanybooksonthedesk.
④這兒有一臺電腦在我的房間里。Thereisacomputerinmyroom.
�、葸@兒有足夠的T裇衫給孩子們。ThereareenoughtheT-shirtsforchild.
⑥樹上有許多小鳥。Therearemanybirdsinthetree.
⑦樹上有許多香蕉。Therearemanybananasonthetree.(在樹上長的果實用on)
五年級英語上冊第三單元句型及語法知識 篇6
五年級英語上冊第三單元句型及語法知識：介詞
①in+月、年the morning/afternoon/evening/aweek表示時間
�、趏n+具體某一天(幾月幾日)/某個假期(…Day)
③at+具體某點時間、某個假期(…Festival)/theweekend
�、賗n…street
表示方位②on…road/left/right
③atthe…crossing/stop/某個具體的地點
�、賗n the tree(不是樹上長出來的)
�、趏n the tree(樹上原來自己長出來的)
表示時間：①ago(……以前)later(……以后)
�、赽efore(在……以前)after(在……以后)
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