職稱英語等級考試各重點語法考點解析2

　　職稱英語等級考試各重點語法考點解析2

　　1、注意狀語從句中從句的省略現象

　　連接詞 + 過去分詞

　　Dont speak until spoken to.

　　Pressure can be incrased when needed.

　　Unless repaired, the washing machine is no use.

　　連詞 + 現在分詞

　　Look out while crossing the street.

　　連詞 + 形容詞/其他

　　常見的有it necessary、if possible、when necessary、if any等

　　2、讓步狀語從句

　　although與though可以引導讓步狀語從句,不能與but連用,但可以與yet連用.

　　Although they are poor,they are warm-hearted.

　　even if或even though引導讓步狀語從句,表示即使,縱然,用來使人注意下文所強調內容的性質.

　　Ill get there even ifI have to sell my house to get enough money to go by air.

　　no matter后接上who、what、where、how等疑問詞,也可以在這類疑問詞后面加上ever構成whoever、whatever、wherever、however等.

　　Dont trust him, no matter what / whatever he says.

　　Whoever breaks the law will be published.

　　No matter how hard the work is, youd better try to do it well.

　　as也可以引導讓步狀語從句.要用倒裝.

　　Child ashe is, he knows a lot.

　　Much as I like it, I wont buy.

　　Try as he would, he couldnt lift the heavy box.

　　3、原因狀語從句:because, for, as, since, now that

　　表示不知道的原因時用because,即說話人認為聽話人不知道,因此because從句是全句最重要的部分,通常它被置于主句之后.

　　You want to know why Im leaving? Im leaving because Im full.

　　for雖然表示不知道的原因,但其語氣較because要弱得多,是可說可不說的話,它只能置于主句之后,這時,for是并列連詞.如果不是因果關系,而是對前面主句的內容加以解釋或推斷時,只能用for.如:Its morning now, for the birds are singing.

　　表示已經知道的原因時用as或since,即某種原因在說話人看來已經很明顯,或已為聽話人所熟悉,因此它是句中不很重要的部分.since要比as正式一些,它們通常被置于語句之前,但有時卻相反.

　　Seeing all of the children already seated, he said,Since everyone is here, lets start.

　　下列情況下只能使用because:

　　①在回答why的問句時;

　　②在用于強調句型時;

　　③被not所否定時.

　　4、地點狀語從句:where, wherever

　　Make a mark wherever you have any questions.

　　We will go where the Party directs us.

　　5、目的狀語從句:that, so that, in order that

　　注意:目的狀語從句的謂語動詞常與情態動詞連用,否則可能是結果狀語從句.不可置于句首.

　　6、結果狀語從句:that, so that, so that, such that

　　注意:so + 形容詞/副詞 + that從句;such + 名詞 + that從句.

　　7、方式狀語從句:as, as if

　　Ill do as I am told to.

　　It looks as if it is going to rain.

　　8、比較狀語從句:than, as

　　9、條件狀語從句:if, unless, so long as, in case, once, a far as, on condition that.

　　注意if與unless的區別:不能用and連接兩個unless從句,即不能有 unless ,and unless .

　　但if not and if not卻不受此限.

　　You wont lose your weight unless you eat less and unless you exercise more.

　　但可以說 unless you eat less and exercise more.

　　職稱英語等級考試各重點語法考點解析2

　　1、注意狀語從句中從句的省略現象

　　連接詞 + 過去分詞

　　Dont speak until spoken to.

　　Pressure can be incrased when needed.

　　Unless repaired, the washing machine is no use.

　　連詞 + 現在分詞

　　Look out while crossing the street.

　　連詞 + 形容詞/其他

　　常見的有it necessary、if possible、when necessary、if any等

　　2、讓步狀語從句

　　although與though可以引導讓步狀語從句,不能與but連用,但可以與yet連用.

　　Although they are poor,they are warm-hearted.

　　even if或even though引導讓步狀語從句,表示即使,縱然,用來使人注意下文所強調內容的性質.

　　Ill get there even ifI have to sell my house to get enough money to go by air.

　　no matter后接上who、what、where、how等疑問詞,也可以在這類疑問詞后面加上ever構成whoever、whatever、wherever、however等.

　　Dont trust him, no matter what / whatever he says.

　　Whoever breaks the law will be published.

　　No matter how hard the work is, youd better try to do it well.

　　as也可以引導讓步狀語從句.要用倒裝.

　　Child ashe is, he knows a lot.

　　Much as I like it, I wont buy.

　　Try as he would, he couldnt lift the heavy box.

　　3、原因狀語從句:because, for, as, since, now that

　　表示不知道的原因時用because,即說話人認為聽話人不知道,因此because從句是全句最重要的部分,通常它被置于主句之后.

　　You want to know why Im leaving? Im leaving because Im full.

　　for雖然表示不知道的原因,但其語氣較because要弱得多,是可說可不說的話,它只能置于主句之后,這時,for是并列連詞.如果不是因果關系,而是對前面主句的內容加以解釋或推斷時,只能用for.如:Its morning now, for the birds are singing.

　　表示已經知道的原因時用as或since,即某種原因在說話人看來已經很明顯,或已為聽話人所熟悉,因此它是句中不很重要的部分.since要比as正式一些,它們通常被置于語句之前,但有時卻相反.

　　Seeing all of the children already seated, he said,Since everyone is here, lets start.

　　下列情況下只能使用because:

　　①在回答why的問句時;

　　②在用于強調句型時;

　　③被not所否定時.

　　4、地點狀語從句:where, wherever

　　Make a mark wherever you have any questions.

　　We will go where the Party directs us.

　　5、目的狀語從句:that, so that, in order that

　　注意:目的狀語從句的謂語動詞常與情態動詞連用,否則可能是結果狀語從句.不可置于句首.

　　6、結果狀語從句:that, so that, so that, such that

　　注意:so + 形容詞/副詞 + that從句;such + 名詞 + that從句.

　　7、方式狀語從句:as, as if

　　Ill do as I am told to.

　　It looks as if it is going to rain.

　　8、比較狀語從句:than, as

　　9、條件狀語從句:if, unless, so long as, in case, once, a far as, on condition that.

　　注意if與unless的區別:不能用and連接兩個unless從句,即不能有 unless ,and unless .

　　但if not and if not卻不受此限.

　　You wont lose your weight unless you eat less and unless you exercise more.

　　但可以說 unless you eat less and exercise more.