二、定語從句：
句型16.
由as引導(dǎo)的非限定性的定語從句。如：
As we have known, he is a most good student.眾所周知，他是個很好的學(xué)生。請比較：It is well-known that he is a most good student.(前一個是定語從句，而后者是個主語從句。)
句型17.
由which引導(dǎo)的非限定性的定語從句。如：
He is a professor, which I have been looking forward to becoming. 他是個教授，那是我一直盼望的職業(yè)。(因為先行詞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.請比較：This is the house which / that I used to come to.
This is the day when I joined the Party.請比較：This is the day which / that I joined the Party on.
(說明：關(guān)于that與which之間的區(qū)別，請看關(guān)系代詞that和which的區(qū)別。)
三、讓步狀語從句
句型19.
No matter what / which / who / where / when / whose+從句，+主句.(注意從句中的時態(tài)一般情況下用一般現(xiàn)在時態(tài)。)如：
No matter what you do, you must do it well.請比較：Whatever you do, you must do it well. 無論你做什么，一定要做好。
No matter where you go, please let me know.請比較：Wherever you go, please let me know.你無論去哪兒，請通知我。
(說明：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來代替。因為它即作動詞tell的賓語，又作后面從句的主語。)
四、條件狀語從句
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. 一旦你開始學(xué)習(xí)英語，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)的從句的謂語動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：祈使句也可用一個名詞短語。)如：
Use your head, and you will find a good idea.動腦筋想一想，你就會想出一個好主意。
Another word, and I will beat you.你再說一句，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，我來做此事。
句型16.
由as引導(dǎo)的非限定性的定語從句。如：
As we have known, he is a most good student.眾所周知，他是個很好的學(xué)生。請比較：It is well-known that he is a most good student.(前一個是定語從句，而后者是個主語從句。)
句型17.
由which引導(dǎo)的非限定性的定語從句。如：
He is a professor, which I have been looking forward to becoming. 他是個教授，那是我一直盼望的職業(yè)。(因為先行詞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.請比較：This is the house which / that I used to come to.
This is the day when I joined the Party.請比較：This is the day which / that I joined the Party on.
(說明：關(guān)于that與which之間的區(qū)別，請看關(guān)系代詞that和which的區(qū)別。)
三、讓步狀語從句
句型19.
No matter what / which / who / where / when / whose+從句，+主句.(注意從句中的時態(tài)一般情況下用一般現(xiàn)在時態(tài)。)如：
No matter what you do, you must do it well.請比較：Whatever you do, you must do it well. 無論你做什么，一定要做好。
No matter where you go, please let me know.請比較：Wherever you go, please let me know.你無論去哪兒，請通知我。
(說明：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來代替。因為它即作動詞tell的賓語，又作后面從句的主語。)
四、條件狀語從句
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. 一旦你開始學(xué)習(xí)英語，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)的從句的謂語動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：祈使句也可用一個名詞短語。)如：
Use your head, and you will find a good idea.動腦筋想一想，你就會想出一個好主意。
Another word, and I will beat you.你再說一句，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，我來做此事。