公共英語三級知識點

1、一、挑錯題牢記16大項原則（一）、主謂搭配一致原則1、劃線錯通常在is/are/was/were/has been/have been/has/have/do/does，動詞的第三人稱單數(shù)。Feel當“感覺起來”的意思，類似于are。feel like。動詞的單數(shù)加“s、es”，名詞的復數(shù)加 “s、es”2、如果兩個名詞只有一個限定詞The，那么后面的謂語動詞應該是單數(shù)形式。The singer and dancer is.翻譯成“兼”3、one of作主語是后面的謂語動詞通常用單數(shù)。One of the people is.Everyone和does連用4、復數(shù)分子和分母+名詞時，謂語動詞與

2、分子分母沒有關(guān)系，和后面的名詞形式有關(guān)。Three fifths the books are.后面的謂語動詞用復數(shù)形式。Three fifths the book is.A pair of/a kind of等后面加名詞時，謂語動詞常用單數(shù)形式。A pair of glasses is missing.主語是pair，眼鏡的一副。A number of=many許多A number of books araThe number of books isThe number of.的數(shù)量 5、A as well as B 主語是A6、倒裝+主謂搭配一致原則（二）、強調(diào)原則1、It is/wasth

3、atW (which/what/whose/where/when.)給括號里面的就是錯誤的。（三）、倒裝原則Only/never/not /neither/so/.+謂語動詞，緊跟的動詞基本都是錯誤的。At on time under no circumstances by no means at no time =neverat no reteon no account含not 的介詞短語in no time=soonIn no time can he admit his mistake.應用成at no time.Only+狀語（狀語從句）是主句要倒裝的。套連詞的都是從句，找主句動詞那是錯

4、的。Only yeasterday did he tell me everything.Have、has、had后有過去分詞，才能進行疑問、倒裝、否定，沒有過去分詞，要借助其他詞。She has left，so has he? She has three sister，so do I.（四）、并列原則And/than/either.or/neithernor/the same as/but如果并列沒有錯，連詞本身有錯。前后并列詞要相同，左右前后要一致，出錯基本都在后面的詞。并列有時沒出現(xiàn)連詞，要看句子、標點等。（五）、反義疑問句前面肯定，后面否定，前面否定，后面肯定It is hot, isn

5、t it?It is hot, is it?He seldom sleep late, does he?他從不睡覺很晚祈使句、反義疑問句用will兩種特殊Let us sit down, will you?Lets sit down, shall we?祈使句固定的will you?Sit down, will you?Dont smoke, will you?主語有含賓語從句，賓語從句進行反義疑問。A side B did sth,didnt B?He said you were late, werent you?（六）、否定詞原則Not/never/hardly/seldom.若句子中出現(xiàn)

6、兩個或兩個以上的否定詞，則找劃線的否定詞最有可能錯。too：是肯定句的“也”。I like red，me too.either：是否定句的“也”。I wont like red，me either.either：兩者中的任何一個都。Either of them，all right. 當代詞用。either：或者或者。Either.or三個重要的作用：否定詞在句首要倒裝，緊挨著否定詞的動詞基本都是錯誤的。句子中出現(xiàn)否定詞，就是否定句，反義疑問句要用可定。挑錯題中出現(xiàn)兩個或兩個以上的否定詞，被劃線的否定詞是錯誤的。（七）、時態(tài)和語態(tài)最愛考完成時，現(xiàn)在完成時、過去完成時、一般現(xiàn)在時。1、一般現(xiàn)在時主

7、將從現(xiàn)原則：在when/before/after/until/as soon as/if/unless等引導的時間或條件狀語從句中，主將從現(xiàn)。從句中不能夠出現(xiàn)will。If it is fine tomrrow,I climb the hill. If做“如果”，后面不能出現(xiàn)將來時。感官動詞不能用現(xiàn)在進行時，要用一般現(xiàn)在時。look、sound、tastesmell、feel2、現(xiàn)在完成時Sincehas/have done sth in during /over the past / last five years/days/weeksin during last five yearsdur

8、ing the past.has/have done3、過去完成時，過去的過去had donehe side he had done.I thought he had left4、一般過去時yesterday、ago這些詞出現(xiàn)，和did連用what did you do yesterday?After和一般時態(tài)連用。5、主動、被動不及物動詞沒有被動語態(tài)。eat、sleep、play、failhave you noticed her coat is wet?she must be caught in the rain.must have been，肯定已經(jīng)被must be一般現(xiàn)在時態(tài)。表示肯定經(jīng)

9、常是，肯定經(jīng)常被，肯定將要是，肯定將要被。（八）、比較級兩者之間比較 far/by far/much/still/even等表示“非?！保蠹颖容^級，表示非常的多。前后要并列平行。much taller很長形容詞、副詞用more，不再用er兩個事物不能出現(xiàn)最高級，兩者用比較，三者用最高。（九）、虛擬語氣（紅皮書后面的詞）If had done.,would/could/might have done.If you had come earlier yeasterday,you would have met her.Had done,would have done.Had you come ea

10、rlier yeasterday,you would have met her.would have done.,but+過去時He would have gone abroad,but he was poor then.Wished that sb had doneWould rather / it is about time+sb did sthBut for air and water,there wouldnt be life. 一貫事實相反，主句要用would be/would do，一般都是空氣、陽光、水But for you help,I would not have succe

11、eded. 過去事實相反，主句用would have done（十）、從句原則名詞+wh-（which/who/whom/when/where/why/whose）+句子從句連詞被劃線了，基本都是錯的，尤其是連詞which。非限定定語從句逗號后不能寫that，兩句話中要有連詞。Lest=for fear that=in case 唯恐，固定連詞，后面出現(xiàn)情態(tài)助動詞，都是should，翻譯成“唯恐萬一”。紅皮書 同位從句 后面用thatsince 有兩個意思：自從，既然since后面是一般現(xiàn)在時的句子，翻譯成“既然”。如果是一般過去時，就是翻譯成“自從”。Since=now that（十一）、感

12、嘆句So/how beautiful 形容詞、副詞Such/what a beautiful girl 名詞（十二）、非謂語動詞現(xiàn)在分詞表示主動，進行的。過去分詞表示被動，完成的。如果都沒錯，往非謂語動詞上選。Having+ed 完成的主動See sb doing sthTo do 將做還沒做（有將要的意思）動名詞只能加動名詞做賓語的動詞，紅皮書To do不定式用to do主動式或是to do 被動式不定式做主語、動名詞作主語，用is做謂語動詞。41-63(讓)Let/make/have+sb do（十三）、形容詞、副詞、代詞、限定詞形容詞、副詞（搭配和語序）介詞后+名詞形容詞修飾名詞副詞修飾動（十四）、代詞和限定詞Found不能直接加to do 不定式做賓語，found要加代詞it。78-47Most做最高級“最”時前有the。（非常）ve