推荐阅读：
如果是过去的时间点，就用过去完成时;如果是现在的时间点，就用现在完成时
Ving：表示持续性，短暂性动词不能用ing的形式
非谓语：重中之重，非常重要。现在分词表示主动的，正在进行的行为;过去分词表示被动的，已经完成的行为。做题时要通过判断动作与名词(代词)之间的关系来确定是使用现在分词还是过去分词。当动作由名词(代词)发出时使用现在分词，而名词(代词)是受动者时则用过去分词
感官和使役动词的固定搭配
物当主语一定要用被动语态
虚拟语气：1)三块时间：过去，现在，将来(详见串讲资料)
2)捆绑法里面的必考单词(I DROP CAPS)
3)would rather，had rather
4)wish=if only
should/ought to have done：过去本应该干某事，但是却没有;
needn’t have to：过去本没必要干某事，但是却做了。
从句：名词性从句(主语，宾语和同位语从句)，定语从句
倒装：否定含义的单词或短语放在句首，句子用部分倒装
hardly … when, scarcely … when, no sooner…than(前部分+had done，后部分+动词一般过去时)
主谓一致：就近原则和前倾原则
1. The father writes in his will that every son and daughter __________a share of his property.
A. has B. to have C. having D. have
2. If only the letter ___________ there in time!
A. arrive B. is arriving C. had arrived D. has arrived
3. If I were in a movie, then it would be about time that I _____ my head in my hands for a cry.
A. bury B. am burying
C. buried D. would bury
4. The gray building is where the workers live, and the white one is where the spare parts___________.
A. are produced B. are producing
C. produced D. being produced
5. Some students ran back to the dormitory, magazines __________ under their arms.
A. to be held B. was held C. held D. holding
6. Most doctors recognize that medicine is _______________.
A. as art as much it is a science B. much an art as it is a science
C. as an art as much it is a science D. as much an art as it is a science
7. The riot is said __________ by the government’s negligence of the people’s welfare.
A. to have been caused B. being caused
C. to be caused D. to cause
8. __________ finished his work, he had to stay at home at the weekend.
A. Having not been B. Being not
C. Not having D. Having not
9. I remember my father ___________ me to the beach when I was a very small child. We forgot ____________ a towel and I felt very cold.
A. taking; to take B. to take; taking
C. taking; taking D. to take; to take
10. __________ a reply, he decided to write again.
A. Not receiving B. Not having received
C. Having not received D. Not received
11. It was essential that the application forms ____________back before the deadline.
A. be sent B. must be sent C. were sent D. would be sent
12. I didn't hear ___________ because there was too much noise where I was sitting.
A. what did he say B. what he said
C. what was he saying D. what for him to say
