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七年級英語上冊必考語法匯總

聞樂瑤3年前 (2022-08-14)百科34
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●閱讀應(yīng)當(dāng)成為吸引學(xué)生喜好的最重要的發(fā)源地。我的教育信念的實(shí)理之一,即是無比相信書的教育力量。——蘇霍姆林斯基

一. 情態(tài)動(dòng)詞can的用法

can+動(dòng)詞原形,它不隨主語的人稱和數(shù)而變革。

*. 含有can的必定句:主語+can+謂語動(dòng)詞的原形+其他。

2. 含有can的否認(rèn)句:主語+can't+動(dòng)詞的原形+其他。

*. 變一般疑問句時(shí),把can提早:Can+主語+動(dòng)詞原形+其他?必定答復(fù):Yes,主語+can。否認(rèn)答復(fù):No,主語+can't.

*. 含有can的特殊疑問句:特殊疑問詞+can+主語+動(dòng)詞原形+其他?

I can speak English.→I can't speak English.→Can you speak English? →What can you speak?

二. what time和when引導(dǎo)的特殊疑問句

*. 詢問鐘點(diǎn)時(shí)用what time,詢問日期、月份、年份時(shí)用when。

2. What's the time?=What time is it?如今幾點(diǎn)了?

*. 時(shí)刻表達(dá)法:順讀法和逆讀法。

順讀法:“鐘點(diǎn)+分鐘”間接讀數(shù)字。

如:7: 0* seven five;8:** eight sixteen

逆讀法:借助介詞past或to暗示,要先說分再說鐘點(diǎn)。

a. 當(dāng)分鐘不超越*0分鐘時(shí)(包羅*0分鐘),即或=*0,用past暗示。其構(gòu)造為:“分鐘+past+整點(diǎn)” 意為“幾點(diǎn)過幾分”。

如:*:2* twenty-five past one

b. 當(dāng)超越*0分鐘時(shí),即*0,用to暗示。其構(gòu)造為:“所差分鐘(即*0—所 過火鐘數(shù))+to+下一個(gè)整點(diǎn)”,to譯成“差”,差幾分鐘到幾點(diǎn)。

如:*:*8 twenty-two to five

c. 當(dāng)分鐘為*0分鐘用half暗示,當(dāng)分鐘為**分鐘用a quarter。

三. how引導(dǎo)的特殊疑問句

*. how 引導(dǎo)的特殊疑問句發(fā)問交通體例,其答語分三種情況:

a. take a/an/the+交通東西(單數(shù))

b. by+交通東西(單數(shù))

c. on/in+限制詞+交通東西

---How do you go to school every day?

---I take a bus to go to school every day./I go to school by bus every day./I go to school on the bus every day.

2. how far 用來發(fā)問間隔,多遠(yuǎn),其答語分為兩種:

(*)用長度單元暗示:It is five kilometers.

(2)用時(shí)間暗示:It’s twenty minutes’walk.

*. how long 用來發(fā)問時(shí)間,意為多久答復(fù)常用“for+段時(shí)”。

----How long have you learnt English?

----For * years.

*. how soon 用來發(fā)問做完某事還需要多長時(shí)間, 用于未來時(shí)態(tài), 常用“in+時(shí)間段”來答復(fù)。

----How soon will you arrive in Beijing? ----In * hours.

四. 祈使句

祈使句一般暗示懇求、號令、挽勸、號召、警告等。一般以動(dòng)詞原形開頭,句末能夠用感慨號或句號。

*. 必定的祈使句:

(*) 實(shí)義動(dòng)詞原形+其他 :Please look at that boy.

(2) be動(dòng)詞原形+描述詞+其他:Be quiet, please.

2. 否認(rèn)的祈使句:

(*) Don’t+實(shí)義動(dòng)詞+原形 Don't stand there.

(2) Don’t be+描述詞+其他 Don't be so noisy.

(*) No+n./V-ing

No photos. 不準(zhǔn)拍照。

No talking. 不準(zhǔn)談話。

五. 如今停止時(shí)

如今停止時(shí)指當(dāng)前時(shí)間正在發(fā)作的動(dòng)做。常與now,at this moment,listen,look等詞連用。

謂語動(dòng)詞構(gòu)造:be+動(dòng)詞ing形式

They are having class.

He is eating lunch.

變成否認(rèn)句間接在be動(dòng)詞之后加not,其他穩(wěn)定;變成一般疑問句間接把be動(dòng)詞提到句首,其他穩(wěn)定。

They are having class.→They are not having class.→ Are they having class?

He is eating lunch.→ He is not eating lunch. → Is he eating lunch?

六. There be構(gòu)造

*. There be句型次要用以表達(dá)“某處有某人(某物),強(qiáng)調(diào)存在”其根本構(gòu)造為“There be+某物(某人)+某地”,有時(shí)為了強(qiáng)調(diào)地點(diǎn),也可把地點(diǎn)狀語放在句首。

There is a book on the desk.

On the desk there is a book.

2. have暗示“某人擁有某人或某物,強(qiáng)調(diào)擁有和所屬關(guān)系”。

The man has two cars.

*. There be句型中的就近原則,即be和距其比來的主語連結(jié)一致。

There are some pens and a book on the floor. =There is a book and some pears on the floor.

七. 選擇疑問句

選擇疑問句是指說話人提出兩種或以上的情況,讓對方選擇是哪一種,兩個(gè)選擇部門用or毗連。選擇疑問句不消yes或no來答復(fù),間接在兩個(gè)選擇里選一個(gè)答復(fù)。

---Is she tall or short? ---She is tall.

---Can you play the piano or play the guitar? ---I can play the piano

八. 名詞

*. 名詞單數(shù)變復(fù)數(shù)規(guī)則

在英語里面,名詞分可數(shù)名詞和不成數(shù)名詞。不成數(shù)名詞沒有單復(fù)數(shù)之分,用時(shí)只當(dāng)單數(shù)詞用;可數(shù)名詞有單復(fù)數(shù)之分,一個(gè)的前面要用a或an,eg: a pencil, a basketball, a dictionary, an egg, an ID card,而復(fù)數(shù)即兩個(gè)或兩個(gè)以上的要做響應(yīng)的變革,情況如下:

(*)一般的詞在單數(shù)詞后間接+“s”

book→books,pen→pens,car→cars,map→maps,cartoon→cartoons

(2)以s,x,sh,ch結(jié)尾的詞+“es”

box→boxes,watch→watches

(*)以輔音字母+y結(jié)尾的名詞去掉“y”,改成“i”,再加“es”

family→families,comedy→comedies

(*)以f或fe結(jié)尾的詞,先去掉f或fe,改成“v”再加es

knife→knives,wife→wives,handkerchief→handkerchieves

(*) 特殊詞,特殊變革,需零丁記:

child→children,man→men,foot→feet,woman→women

tooth→teeth,sheep→sheep,deer→deer

2. 既是可數(shù)名詞又是不成數(shù)名詞的單詞

chicken當(dāng)“雞肉”講時(shí)是不成數(shù),當(dāng)“小雞”講時(shí)可數(shù);

room當(dāng)“空間”講時(shí)不成數(shù),當(dāng)“房間”講時(shí)可數(shù);

fish當(dāng)食物用“魚、魚肉”講時(shí)不成數(shù),當(dāng)“魚的品種”講時(shí)可數(shù);

hair泛指“毛發(fā)”時(shí)不成數(shù),當(dāng)“一根或幾根毛發(fā)”講時(shí)可數(shù);

sound意思是“一般性的聲音”時(shí),不成數(shù),指“一次發(fā)出的聲音”時(shí)可數(shù);

paper當(dāng)“紙”講時(shí)不成數(shù),當(dāng)“試卷”、“論文”、“證件”講時(shí)可數(shù);

time當(dāng)“時(shí)間”講時(shí)不成數(shù),當(dāng)“時(shí)代、倍數(shù)、次數(shù)”講時(shí)可數(shù);

exercise泛指“熬煉”時(shí)不成數(shù),當(dāng)“操練、做操”講時(shí)可數(shù)

九. 一般過去時(shí)

一般過去時(shí)暗示在過去某個(gè)時(shí)間所發(fā)作的動(dòng)做或所處的形態(tài)(與如今無關(guān)) 。常與yesterday, last week, in *989, just now, a moment ago, the other day等過去詳細(xì)時(shí)間狀語連用。

He was here just now.

他適才還在那里。

What did you do yesterday?

你今天做了什么事?

一般過去時(shí)根本構(gòu)造

*. 必定句形式:主語+動(dòng)詞過去式+其他  

I was an English teacher one year ago.

一年前我是一名英語教師。

I bought a yellow dress yesterday afternoon.

今天下戰(zhàn)書我買了一條黃裙子。

2. 否認(rèn)句形式:①was/were+not; ②在行為動(dòng)詞前加didn't,同時(shí)復(fù)原行為動(dòng)詞 

I wasn't an English teacher one year ago.

一年前我不是一名英語教師。

I didn't buy a yellow dress yesterday afternoon.

今天下戰(zhàn)書我沒買一條黃裙子。

*. 一般疑問句:①was/were提到句首;②Did+主語+動(dòng)詞原形+其他?  

Were you an English teacher one year ago?

一年前你是一名英語教師嗎?

Did you buy a yellow dress yesterday afternoon?

今天下戰(zhàn)書你買了一條黃裙子嗎?

*. 特殊疑問句:特殊疑問詞+一般疑問句

What were you one year ago?

一年前你是做什么的?

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