四年級下英語知識點
小學英語的詞彙學習是小學四年級英語學習的重點,也是中年級英語學習的難點。接下來小編為你整理了，一起來看看吧。
:反意疑問句
1*** 陳述部分的主語是I，疑問部分要用 aren't I.
I'm as tall as your sister，aren't I?
2*** 陳述部分的謂語是wish，疑問部分要用may +主語
I wish to have a word with you, may I?
3*** 陳述部分用 no, nothing, nobody, never, few, seldom, hardly, rarely, little等否定含義的詞時，疑問部分用肯定含義
The Swede made no answer, did he / she?
Some plants never blown ***開花***, do they ?
4*** 含有ought to 的反意疑問句，陳述部分是肯定的，疑問部分用shouldn't / oughtn't +主語
He ought to know what to do, oughtn't he? / shouldn't he?
5*** 陳述部分有have to +v. ***had to + v.***，疑問部分常用don't +主語***didn't +主語***
We have to get there at eight tomorrow, don't we?
6*** 陳述部分的謂語是used to 時，疑問部分用didn't +主語或 usedn't +主語
He used to take pictures there, didn't he? / usedn't he?
7*** 陳述部分有had better + v. 疑問句部分用hadn't you?
You'd better read it by yourself, hadn't you?
8*** 陳述部分有would rather +v.，疑問部分多用 wouldn't +主語
He would rather read it ten times than recite it, wouldn't he?
9*** 陳述部分有You'd like to +v. 疑問部分用wouldn't +主語
You'd like to go with me, wouldn't you?
10*** 陳述部分有must 的疑問句，疑問部分根據實際情況而定
He must be a doctor, isn't he?
You must have studied English for three years, haven't you? / didn't you?
He must have finished it yesterday, didn't he?
11*** 感嘆句中，疑問部分用be +主語
What colours, aren't they?
What a smell, isn't it?
12*** 陳述部分由neither… nor, either… or 連線的並列主語時，疑問部分根據其實際邏輯意義而定
Neither you nor I am engineer, are we?
13*** 陳述部分主語是指示代詞或不定代詞everything, that, nothing, this, 疑問部分主語用it
Everything is ready, isn't it?
14*** 陳述部分為主語從句或並列複合句，疑問部分有三種情況
a. 並列複合句疑問部分，謂語動詞根據鄰近從句的謂語而定。
Mr. Smith had been to Beijing for several times, he should have been in China now, shouldn't he?
b. 帶有定語從句，賓語從句的主從複合句，疑問部分謂語根據主句的謂語而定：
He is not the man who gave us a talk, is he?
He said he wanted to visit Japan, didn't he?
c. 上述部分主句謂語是think, believe, expect, suppose, imagine等引導的定語從句，疑問部分與賓語從句相對應構成反意疑問句。
I don't think he is bright, is he?
We believe she can do it better, can't she?
15*** 陳述部分主語是不定代詞everybody, anyone, somebody, nobody, no one等，疑問部分常用複數they，有時也用單數he
Everyone knows the answer, don't they?***does he?***
Nobody knows about it, do they? ***does he?***
16*** 帶情態動詞dare或need的反意疑問句，疑問部分常用 need ***dare *** +主語
We need not do it again, need we ?
He dare not say so, dare you?
當dare, need 為實義動詞時，疑問部分用助動詞do + 主語。
She doesn't dare to go home alone, does she?
17*** 省去主語的祈使句的反意疑問句，疑問部分用will you
Don't do that again, will you?
Go with me, will you / won't you ?
注意： Let's 開頭的祈使句，後用shall we?
Let us 開頭的祈使句，後用will you?
Let's go and listen to the music, shall we?
Let us wait for you in the reading-room, will you ?
18*** 陳述部分是"there be"結構的，疑問部分用there省略主語代詞
There is something wrong with your watch, isn't there?
There will not be any trouble, will there?
19*** 否定字首不能視為否定詞，其反意疑問句仍用否定形式
It is impossible, isn't it?
He is not unkind to his classmates, is he?
20*** must在表"推測"時，根據其推測的情況來確定反意疑問句
He must be there now, isn't he?
It must be going to rain tomorrow, won't it?
:必背句型
1、This is a red skirt. 這是一條紅色的短裙。***單數******劃線部分要會替換***
2、These are yellow trousers.這些是紅色的褲子。***複數******劃線部分要會替換***
3、He/She is wearing a green sweater. 他/她穿著一件綠色的毛衣。***劃線部分要會替換***
He/ She is wearing blue trousers. 他/她穿著一條藍色的褲子。***注意褲子是複數形式，wearing後面不需要加冠詞a***
4、This is a new sweater.這是一件新毛衣。***單數***
5、This is an old sweater. 這是一件舊毛衣。***單數******注意：old 中字母o是母音字母，前面需要使用冠詞an***
6、These are new trousers.這些是新褲子。***複數***
7、These are old trousers.這些是舊褲子。***複數***
8、I like your trousers.我喜歡你的褲子。
9、Are they new? Yes, they are. /No, they aren’t.他們是新的嗎?是的。/ 不，不是。***複數***
Is it new? Yes, it is./ No, it isn’t. 它是新的麼?是的。/ 不，不是。***單數***
10、What is she wearing? She is wearing a green sweater, an orange skirt and a brown scarf.她穿著什麼? 她穿著一件綠色毛衣，桔色短裙和棕色圍巾。
11、Is this your cap? No! It’s Kim’s cap.這是你的帽子嗎? 不，這是Kim的帽子。
12、Are these your gloves? No, they aren’t .這些是你的手套嗎? 不是。
13、What day is today? It’s Monday. 今天星期幾? 今天星期一。***劃線部分要會替換***
14、How many days are there in a week? 一週有幾天?Seven. 七天。
15、What do you do in the evening?你晚上做什麼?***劃線部分要會替換***
In the evening , I do my homework./I write a story. / I read a book. /I draw a picture for my story .我晚上做作業。/寫故事。/讀書。/給我的故事畫圖。
16、What do you do at home? 你在家幹什麼?
I help my mum and my dad. / I talk on the phone with my friends./ I watch TV after dinner. /I play on the computer. 我幫我的爸爸媽媽。/我和朋友打電話。/我晚飯後看電視。/我玩電腦。
17、What do you do in your bedroom? 你在你的臥室做什麼?***劃線部分要會替換***
I make my bed. /I clean my bedroom. /I play with my teddy bear. /I listen to music. 我整理我的床鋪。/ 我打掃房間。/我和我的泰迪熊玩。/我聽音樂。
18、What do you do in the morning? 你早上做什麼?***劃線部分要會替換***
I brush my teeth. / I wash my face. /I brush my hair. /I put on my clothes.我刷牙。/洗臉 梳頭。/穿衣服。
：感嘆句結構
感嘆句通常有what, how引導，表示讚美、驚歎、喜 悅、等感情。
what修飾名詞，how 修飾形容詞，副詞或動詞
感嘆句結構主要有以下幾種：
How +形容詞+ a +名詞+陳述語序
How+形容詞或副詞+陳述語序
What +名詞+陳述語序
What+a+形容詞+名詞+陳述語序
What+ 形容詞+複數名詞+ 陳述語序
What+ 形容詞+不可數名詞+ 陳述語序
How clever a boy he is!
How lovely the baby is!
What noise they are making!
What a clever boy he is!
What wonderful ideas ***we have***!
What cold weather it is!
感嘆句的省略形式為：
What a clever boy ***he is***!