英语四级考试必备语法 英语四六级考试

今天小编为大家带来了英语四级语法基础知识必备，希望对大家有所帮助，接下来跟小编一起来看看吧。

动词(时态,语态,用法,省略,一致性等)时态

1)现在完成进行时态(have/hasbeen-ing分词构成):动作或状态从过去某时开始,继续到现在,可能继续下去,也可能刚刚结束.

I’vebeenwritinglettersforanhour.

I’vebeensittinginthegarden.

2)过去完成进行时(由hadbeening分词构成):过去某个时刻以前一直在进行的动作

I’dbeenworkingforsometimewhenhecalled.

Wehadbeenwaitingforherfortwohoursbythetimeshecame.

3)将来完成进行时:将来某个时刻以前一直在进行的动作.

Bynextsummer,hewillhavebeenworkingherefortwentyyears.

Inanothermonth’stimeshe’llhavebeenstudyinghereforthreeyears.

4)将来完成时(由shall/willhave过去分词构成):将来某时已发生的事.

Ishallhavefinishedthisonebeforelunch.

They’llhavehittheyear’stargetbytheendofOctober.

语态

可以有两种被动结构的类型,例如:

Hewassaidtobejealousofhersuccess.

Itwassaidthathewasjealousofhersuccess.

能同时适用于上述两个句型的主动词通常都是表示估计",相信"等意义的动词,常见的有assume,believe,expect,fear,feel,know,presume,report,say,suppose,understand等.

Itissupposedthattheshiphasbeensunk.

Theshipissupposedtohavebeensunk.

担当besupposedto与不定式的一般形式搭配时往往表示不同的意义.例如:

Whyareyoudrivingsofastinthisarea?Youaresupposedtoknowthespeedtoknowthespeedlimit.(你应该晓得速度)

双宾语及宾补结构的被动语态

双宾语结构的被动语态:双宾语结构变为被动语态时,可以把主动结构中的一个宾语变为主语,另一个宾语仍然保留在谓语后面,但多数是把间接宾语变为主语.

Hewasaskedanumberofquestionsatthepressconference.

Twodayswereallowedthemformakingthenecessarypreparations.

宾补结构的被动语态:

ShewascalledBigSisterbyeverybody.

Thenhewasmadeasquadleader.

Hewasconsideredquitequalifiedforthejob.

Theroomwasalwayskeptcleanandtidy.

短语动词

Viadv

Theplanetookofftwohourslate.

Viprep

TheylookedroundtheCathedral.

Viprep(有被动语态)