一、状语从句的一些引导词需要着重注意
1.before: …before I could say a word./It may be some time before the situation improves How long it’ll be before I can go back to work? 2.when: It was six o’clock when they arrived at the hotel. 3.since: It’s three years since I smoked. 4.as: Great as the difficulty was,../Much as I admire,…
5.where: They notice that plants don’t grow well where there is much shade. My doctor advised me to live where the air is fresher. 6.主将从现：
I can when my headache disappear thoroughly. If you go, so will I.
二、时态和语态是很重要的考点
have been painting all day/be always doing/I did lock it/will still be sleeping/will have left The papers are still being corrected/It is being served in the dining room.
三、注意情态动词对过去表示推测的用法
比如，couldn’t have done/might have done/needn’t have done/should/ought to have done特别是shall的用法: No student shall go out of school without the teacher’s permission. Tell him that he shall have the wonderful book tomorrow afternoon. It is the rule that every driver shall obey in this city. Shall I/he book a table?请别忽视某些情态动词的特殊含义，如：
must : If you must know her name, her name is Mabel. would: When I was young, I would sit under the old tree listening to grandpa tell me stories. should: It’s strange that Tom, the most excellent student in our grade should fail in the exam. may: May you succeed!/May you be happy!
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