2018小升初英語(yǔ)知識(shí)點(diǎn)【三篇】集合
時(shí)間:2018-11-19 13:06:00 來(lái)源:無(wú)憂(yōu)考網(wǎng) [字體:小 中 大]【篇一】
There be句型知識(shí)點(diǎn)(1)There be句型主要用以表達(dá)“某處(某時(shí))有某人(某物)!逼浠窘Y(jié)構(gòu)為“There be+某物(某人)+某地(某時(shí))”其中there是引導(dǎo)詞,沒(méi)有詞義;主語(yǔ)是be后面的名詞, be是謂語(yǔ)動(dòng)詞,在一般現(xiàn)在時(shí)中be只用is和are兩種形式。下面這首歌訣可幫你巧記there be句型結(jié)構(gòu):
There be放句首,主語(yǔ)跟在后。地、時(shí)放句末,強(qiáng)調(diào)置前頭。如:There is a book on the desk.有時(shí)為了強(qiáng)調(diào)地點(diǎn),也可把介詞短語(yǔ)放在句首。如:
On
the desk there is a book.
(2)There be句型中的be動(dòng)詞如何確定呢?請(qǐng)先看看下面這首歌訣:Be動(dòng)詞,有三個(gè),am,is還有are!癟here be”真特別,不留am只留倆,那就是is還有are。要用is還是are,須看其后的名詞是單數(shù)還是復(fù)數(shù)。若是單數(shù)或不可數(shù)名詞用is,否則就用 are。如:①There is a tree behind the house.②There is some water(水)in the bottle(瓶子).
③There
are some pears in the box.
(3)注意:如果“be”后的主語(yǔ)是由and連接的兩個(gè)或兩個(gè)以上的名詞,那么be的形式要遵循“遠(yuǎn)親不如近鄰”的原則。也就是說(shuō),“be”的形式是 由與它最近的那個(gè)名詞來(lái)確定的。若那個(gè)名詞是單數(shù)或不可數(shù)名詞要用is,是復(fù)數(shù)就用are。如:①There is a book and some pens on the floor.②There are some pens and a book on the floor.
【練習(xí)題】
用is或are填空
1.There________many monkeys in the mountain. 3. There _________some water in the glass. 5. _________there any maps on the wall? 7. There__________a bird in the tree. 9. ________there a cup of tea on the table? 11. There_____a bed and two chairs in Betty's room. 13. There __________some children in the park.
【篇二】
this,that和it用法(1)this和that是指示代詞,it是人稱(chēng)代詞。
(2)距離說(shuō)話(huà)人近的人或物用this, 距離說(shuō)話(huà)人遠(yuǎn)的人或物用that。如: This is a flower. 這是一朵花。(近處)
That is a tree. 那是一棵樹(shù)。(遠(yuǎn)處)
(3)放在一起的兩樣?xùn)|西,先說(shuō)this, 后說(shuō)that。如:
This is a pen. That is a pencil. 這是一支鋼筆。那是一支鉛筆。
(4)向別人介紹某人時(shí)說(shuō)This is…, 不說(shuō)That is…。如:
This is Helen. Helen, this is Tom. 這是海倫,海倫,這是湯姆。
(5)This is 不能縮寫(xiě), 而That is可以縮寫(xiě)。如:
This is a bike. That’s a car. 這是一輛自行車(chē)。那是一輛轎車(chē)。
(6)打電話(huà)時(shí),介紹自己用this, 詢(xún)問(wèn)對(duì)方用that。如:
-Hello! Is that Miss Green? 喂,是格林小姐嗎?
-Yes, this is. Who’s that? 是的,我是,你是誰(shuí)?
注意:雖然漢語(yǔ)中使用“我”和“你”,但英語(yǔ)中打電話(huà)時(shí)絕不可以說(shuō):I am…, Are you…?/Who are you?
(7)在回答this或that作主語(yǔ)的疑問(wèn)句時(shí), 要用it代替this或that。如:
①-Is this a notebook? 這是筆記本嗎?
-Yes, it is. 是的,它是。
②-What’s that? 那是什么?
-It’s a kite. 是只風(fēng)箏。
【練習(xí)題】
1.It was last year__ you taught me how to drive. (答案)A. when B. that C. where D. which
2.It was__ he said__ disappointed me. (答案)A.that what B. what;that C.what what D.that;that
3.It was in the factory__ produced TV sets __our friend was murdered.(答案) A. which which B. that; which C. that that D.where;that
4.__ find my wallet,Tom?(答案) A. Where did you that B.Where was it you C.Where have you D.Where was it that you
5.It was not until 1920__regular radio broadcast began.(答案) A. while B. which C.that D.since
【篇三】
一、基數(shù)詞1)基數(shù)詞寫(xiě)法和讀法: 325 three hundred and twenty-five;
2)基數(shù)詞一般是單數(shù)形式,但下列情況,常用復(fù)數(shù):
a. 與of 短語(yǔ)連用,表示概數(shù),不能與具體數(shù)目連 用,如scores of people 指許多人;
b. 在一些表示“一排”或“一組”的詞組里;
如:They arrived in twos and threes. 他們?nèi)齼蓛傻牡竭_(dá)了。
c. 表示“幾十歲”;
d. 表示“年代”,用 in +the +數(shù)詞復(fù)數(shù);
e. 在乘法運(yùn)算的一種表示法里,如:3 x 5 = 15 Three fives is (are) fifteen.
二、序數(shù)詞
序數(shù)詞的縮寫(xiě)形式: first—1st second—2nd thirty-first—31st
三、 數(shù)詞的用法
1)倍數(shù)表示法
a. 主語(yǔ)+謂語(yǔ)+倍數(shù)(或分?jǐn)?shù))+ as + adj. + as
I have three times as many as you. 我有你三倍那么多。
b. 主語(yǔ)+謂語(yǔ)+倍數(shù)(分?jǐn)?shù))+ the size (amount,length…) of…
The earth is 49 times the size of the moon. 地球是月球的49倍。
c. 主語(yǔ)+謂語(yǔ)+倍數(shù)(分?jǐn)?shù))+ 形容詞(副詞)比較級(jí)+ than…
The grain output is 8 percent higher this year than that of last year.
今年比去年糧食產(chǎn)量增加8%。
d. 還可以用by+倍數(shù),表示增加多少倍
The production of grain has been increased by four times this year.
今年糧食產(chǎn)量增加了4倍。
2)分?jǐn)?shù)表示法
構(gòu)成:基數(shù)詞代表分子,序數(shù)詞代表分母。分子大于1時(shí),分子的序數(shù)詞用單數(shù),分母序數(shù)詞用復(fù)數(shù):
1/3 one-third ; 3/37 three thirty-sevenths.
【練習(xí)題】
1.There are _______ people in the cinema.
A.two hundred B. two hundreds C. two hundred of D. two hundreds of
【解析】:選A。
表示具體數(shù)目時(shí),hundred和thousand等用單數(shù)形式,且不用of,故選A。
2.He bought _______roses yesterday.
A.two dozens B. two dozens of C. two dozen D two dozen of
【解析】:選C。
表示具體數(shù)目時(shí),dozen用單數(shù)形式,且不用of,故選C。
3.This book is ______ years old.
A.several thousand B. several thousands C. several thousand of D severals thousands of
【解析】:選A。
hundred和thousand等與many,several, a few等連用修飾名詞復(fù)數(shù)時(shí),用單數(shù)形式,且常不用of,故選A。