高考英語知識點解析Unit3-4：句型歸納

2023年高考已經開始倒計時，俗話說：“臨陣磨刀，不快也光”，各位考生在此關鍵時刻千萬不要放松，要繼續武裝自己。為此，祝福網高考頻道為2023考生特別推薦了一些高考試題和高考作文，大家可以用之作為額外的學習資源。預祝大家考出一個理想的成績。

☆句型歸納☆

1. You shouldn't go rafting unless you know how to swim, and you should always wear a life jacket. 除非你會游泳，而且要一直穿著救生衣，否則就不應該去做漂流運動。

該句中的unless引導狀語從句。例如：One can't learn a foreign language well unless he studies hard.

unless引導的條件狀語從句，一般可以與if...not...互換。還要注意unless引導的從句經常可以省略。

【考例】(200l北京春招)The men will have to wait all day ____ the doctor works faster.

A. if B. unless C. whether D. that

[考查目標]狀語從句。

[答案與解析]B 句子意思是“如果醫生不快點工作，

這些人將不得不等一整天。”應該選unless。

2. Eco-travel is a way to find out what can be done to help animals and plants as well as people. 生態游可以找到既幫助別人.又幫助動植物的途徑。

該句中的as well as是連詞，連接兩個并列成分。例如: He can speak German as well as French.

常見的用法:

1. well是副詞，意思是“好，優秀”，as well as是形容詞 同級比較結構。

2. as well as是固定短語，意思是“和”，相當于"not only … but also..."。

3. as well as連接兩個并列成分作主語時，句子的謂語動詞應該與前面那個名詞或代詞的人稱或數保持一致。

4. as well as還可當作復雜介詞用，意思是“除了……之外，還有”;相當于"besides，apart from"。

5. as well，是副詞短語，意思是“也”，相當于“too / also”常位于句尾，與too位置相當。

6. may / might as well do sth 表示“還是……的好”。

【考例】(NMET 1994) John plays football ____, if not better than David.

A. as well B. as well as C. so well D. so well as

[考查目標] as well as連接比較狀語從句。

[答案與解析]B 該句中 if not better than相當于插入語，起干擾作用，如果不予考慮，原句就變成了同級比較結構 "John plays football as well as David"。

3. Before she could move，she heard a loud noise. 她還沒有來得及動彈，就聽見很響的聲音。

However, before she could think twice, the water was upon her. 但還沒有回過身來，洪水便逼近了她。

該兩句中的before用作連詞，后接時間狀語從句。before用作連詞，接時間狀語從句時，表示“在……之前”。但在不同的語境中，往往有比較靈活的譯法。例如: He knocked me down before he saw me. 他差一點把我撞倒，才看到我。

【考例】(2023廣東) The American Civil War lasted four years the North won in the end.

A. after B. before C. when D. then

[考查目標] 時間狀語從句的引導詞選擇。

[答案與解析]B before 表示“直到……”。

4. Tree after tree went down, cut down by the water, which must have been three meters deep. 洪水想必深達三米，樹一棵接一棵地倒了，被洪水沖斷了。

該句中的must have been表示推測。例如：You look so tired. You must have stayed up last night.

情態動詞may，might，most.can，could常用來表示推測。may，might，must多用在肯定句中，can，could多用在否定句和疑問句中。may，might，must，can，could后接動詞原形表示對現在的推測;may，might，must，can，could后接have done。表示對過去的推測。例如：

You may be a professor. / She must have met a fairy.

【考例】(2023遼寧)This cake is very sweet. You ____ a lot of sugar in it.

A. should put B. could have put

C. might put D. must have put

[考查目標] 情態動詞表示推測。

[答案與解析] D 前文說蛋糕很甜，由此可知一定是糖

放多了。對于過去的動作的推測應使用have done的

結構，所以應在B、D之間做選擇，又因為could have

done表示本可以做而沒有做，所以選擇D。

5. ... she heard a loud noise，which grew to a terrible roar. ……她聽見了很響的聲音，接著就變成了可怕的隆隆轟鳴聲。

該句中的which引導非限制性定語從句。例如：He bought some reference books, which were all about science. 他買了許多的參考資料.都是有關理科的。

which 作為關系代詞.既可以引導限制性定語從句，也可以引導非限制性定語從句。例如：The train which left for Beijing pulled in on time. 前往北京的火車按時進站了。His dog, which was now very old, became ill and died.他的狗，現在老了，生病死了。 精品小說推薦： 昔日落魄少年被逐出家族，福禍相依得神秘老者相助，從此人生路上一片青雲！ 我行我瀟灑，彰顯我性格！ 彆罵小爺拽，媳婦多了用車載！ 妹紙一聲好歐巴，轉手就是摸摸大！ “不要嘛！” 完整內容請點擊辣手仙醫

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