【篇一】
There be句型知識點(1)There be句型主要用以表達“某處(某時)有某人(某物)�！逼浠窘Y(jié)構(gòu)為“There be+某物(某人)+某地(某時)”其中there是引導詞，沒有詞義;主語是be后面的名詞， be是謂語動詞，在一般現(xiàn)在時中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，主語跟在后。地、時放句末，強調(diào)置前頭。如：There is a book on the desk.有時為了強調(diào)地點，也可把介詞短語放在句首。如：
On
the desk there is a book.
(2)There be句型中的be動詞如何確定呢?請先看看下面這首歌訣：Be動詞，有三個，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”后的主語是由and連接的兩個或兩個以上的名詞，那么be的形式要遵循“遠親不如近鄰”的原則。也就是說，“be”的形式是 由與它最近的那個名詞來確定的。若那個名詞是單數(shù)或不可數(shù)名詞要用is，是復數(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是人稱代詞。
(2)距離說話人近的人或物用this, 距離說話人遠的人或物用that。如： This is a flower. 這是一朵花。(近處)
That is a tree. 那是一棵樹。(遠處)
(3)放在一起的兩樣東西，先說this, 后說that。如：
This is a pen. That is a pencil. 這是一支鋼筆。那是一支鉛筆。
(4)向別人介紹某人時說This is…, 不說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, 而That is可以縮寫。如：
This is a bike. That’s a car. 這是一輛自行車。那是一輛轎車。
(6)打電話時，介紹自己用this, 詢問對方用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?
注意：雖然漢語中使用“我”和“你”，但英語中打電話時絕不可以說：I am…, Are you…?/Who are you?
(7)在回答this或that作主語的疑問句時, 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. 是只風箏。
【練習題】
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，常用復數(shù)：
a. 與of 短語連用，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_了。
c. 表示“幾十歲”;
d. 表示“年代”，用 in +the +數(shù)詞復數(shù);
e. 在乘法運算的一種表示法里，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+謂語+倍數(shù)(或分數(shù))+ as + adj. + as
I have three times as many as you. 我有你三倍那么多。
b. 主語+謂語+倍數(shù)(分數(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+謂語+倍數(shù)(分數(shù))+ 形容詞(副詞)比較級+ 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)分數(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，分子的序數(shù)詞用單數(shù)，分母序數(shù)詞用復數(shù)：
1/3 one-third ; 3/37 three thirty-sevenths.
【練習題】
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，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，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等連用修飾名詞復數(shù)時，用單數(shù)形式，且常不用of，故選A。
