二、定語(yǔ)從句：
句型16.
由as引導(dǎo)的非限定性的定語(yǔ)從句。如：
As we have known, he is a most good student.眾所周知，他是個(gè)很好的學(xué)生。請(qǐng)比較：It is well-known that he is a most good student.(前一個(gè)是定語(yǔ)從句，而后者是個(gè)主語(yǔ)從句。)
句型17.
由which引導(dǎo)的非限定性的定語(yǔ)從句。如：
He is a professor, which I have been looking forward to becoming. 他是個(gè)教授，那是我一直盼望的職業(yè)。(因?yàn)橄刃性~professor是表示職業(yè)的名詞，因此引導(dǎo)詞用which，而不用who。
句型18.
由where, when引導(dǎo)的定語(yǔ)從句(其中包括限定性的或非限定性的。)如：
This is the house where I used to come.請(qǐng)比較：This is the house which / that I used to come to.
This is the day when I joined the Party.請(qǐng)比較：This is the day which / that I joined the Party on.
(說(shuō)明：關(guān)于that與which之間的區(qū)別，請(qǐng)看關(guān)系代詞that和which的區(qū)別。)
三、讓步狀語(yǔ)從句
句型19.
No matter what / which / who / where / when / whose+從句，+主句.(注意從句中的時(shí)態(tài)一般情況下用一般現(xiàn)在時(shí)態(tài)。)如：
No matter what you do, you must do it well.請(qǐng)比較：Whatever you do, you must do it well. 無(wú)論你做什么，一定要做好。
No matter where you go, please let me know.請(qǐng)比較：Wherever you go, please let me know.你無(wú)論去哪兒，請(qǐng)通知我。
(說(shuō)明：這兩種句型形式不同，而意義完全相同。)
(注意：I will tell whoever would like to read it. 句中的whoever不能用whomever來(lái)代替。因?yàn)樗醋鲃?dòng)詞tell的賓語(yǔ)，又作后面從句的主語(yǔ)。)
四、條件狀語(yǔ)從句
句型20.
When / So long as / As long as / Once +從句，+主句。(從句也可以放在主句之后。)如：
As long as you give me any money, I will let you go.只要你給我一些錢，我就讓你走。
Once you have begun to learn English, you should learn it well. 一旦你開(kāi)始學(xué)習(xí)英語(yǔ)，你應(yīng)該把它學(xué)好。
句型21.
主句+on condition that+從句.如：
I will go with you on condition that you give me a sum of money.我和你一起去的條件是你給我一些錢。
句型22.
主句+unless+從句.(注意：由于unless本身是否定詞，所引導(dǎo)的從句的謂語(yǔ)動(dòng)詞用肯定而不用否定。)如：
I will go there tomorrow unless it rains.我明天去那兒除非下雨。
句型23.
祈使句，+and/ and then+主句。(注意：祈使句也可用一個(gè)名詞短語(yǔ)。)如：
Use your head, and you will find a good idea.動(dòng)腦筋想一想，你就會(huì)想出一個(gè)好主意。
Another word, and I will beat you.你再說(shuō)一句，我就揍你。
句型24.
If +necessary / impossible/ important等，+主句.(注意：if與形容詞之間的it is被省略。)如：
If necessary, I will do it. 如果有必要的話，我來(lái)做此事。
句型16.
由as引導(dǎo)的非限定性的定語(yǔ)從句。如：
As we have known, he is a most good student.眾所周知，他是個(gè)很好的學(xué)生。請(qǐng)比較：It is well-known that he is a most good student.(前一個(gè)是定語(yǔ)從句，而后者是個(gè)主語(yǔ)從句。)
句型17.
由which引導(dǎo)的非限定性的定語(yǔ)從句。如：
He is a professor, which I have been looking forward to becoming. 他是個(gè)教授，那是我一直盼望的職業(yè)。(因?yàn)橄刃性~professor是表示職業(yè)的名詞，因此引導(dǎo)詞用which，而不用who。
句型18.
由where, when引導(dǎo)的定語(yǔ)從句(其中包括限定性的或非限定性的。)如：
This is the house where I used to come.請(qǐng)比較：This is the house which / that I used to come to.
This is the day when I joined the Party.請(qǐng)比較：This is the day which / that I joined the Party on.
(說(shuō)明：關(guān)于that與which之間的區(qū)別，請(qǐng)看關(guān)系代詞that和which的區(qū)別。)
三、讓步狀語(yǔ)從句
句型19.
No matter what / which / who / where / when / whose+從句，+主句.(注意從句中的時(shí)態(tài)一般情況下用一般現(xiàn)在時(shí)態(tài)。)如：
No matter what you do, you must do it well.請(qǐng)比較：Whatever you do, you must do it well. 無(wú)論你做什么，一定要做好。
No matter where you go, please let me know.請(qǐng)比較：Wherever you go, please let me know.你無(wú)論去哪兒，請(qǐng)通知我。
(說(shuō)明：這兩種句型形式不同，而意義完全相同。)
(注意：I will tell whoever would like to read it. 句中的whoever不能用whomever來(lái)代替。因?yàn)樗醋鲃?dòng)詞tell的賓語(yǔ)，又作后面從句的主語(yǔ)。)
四、條件狀語(yǔ)從句
句型20.
When / So long as / As long as / Once +從句，+主句。(從句也可以放在主句之后。)如：
As long as you give me any money, I will let you go.只要你給我一些錢，我就讓你走。
Once you have begun to learn English, you should learn it well. 一旦你開(kāi)始學(xué)習(xí)英語(yǔ)，你應(yīng)該把它學(xué)好。
句型21.
主句+on condition that+從句.如：
I will go with you on condition that you give me a sum of money.我和你一起去的條件是你給我一些錢。
句型22.
主句+unless+從句.(注意：由于unless本身是否定詞，所引導(dǎo)的從句的謂語(yǔ)動(dòng)詞用肯定而不用否定。)如：
I will go there tomorrow unless it rains.我明天去那兒除非下雨。
句型23.
祈使句，+and/ and then+主句。(注意：祈使句也可用一個(gè)名詞短語(yǔ)。)如：
Use your head, and you will find a good idea.動(dòng)腦筋想一想，你就會(huì)想出一個(gè)好主意。
Another word, and I will beat you.你再說(shuō)一句，我就揍你。
句型24.
If +necessary / impossible/ important等，+主句.(注意：if與形容詞之間的it is被省略。)如：
If necessary, I will do it. 如果有必要的話，我來(lái)做此事。