c.在过去的时间里，发生的事情，不强调对现在的影响和跟其它时间的比较，叫一般过去式．
过去的过去……过去完成时
有过去发生的动作，但是还强调对现在的影响……现在完成时
有（yesterday,last night)以前的事情，没有强调对现在的影响……一般过去时

d.过去的行为对现在产生的影响或者过去的行为一直延续的现在……现在完成时

e.过去某一特定时间发生的动作……过去进行时

Exercises C
1.gets...got
2.have not had (have-have had)　　　
so far:up to now　到目前为止　　现在完成时
3.was writing　were talking
4.I'm typing　　at the moment……标志着现在进行时；now
5.were passing

Exercises D
...动词的正确语态填空，时态
先确定主被动，然后确定时态
in the seventeenth century……一般过去时的标志
The Taj Mahal……泰姬陵
was built;　
became;　
died;　
was built in one's honour:　为了纪念某人
were called　(call in:召集)　　
was begun;
was completed;
cost;
has been visited;　(up to the present day : up to now)

【Multiple choice exercises】

4.a
at the moment:现在进行时
since:自从　点时间
for:一段　　段时间
for three hours; since yesterday;　 for a day;　for three days
since three days ago

8.a
good salary　　well:表示好的时候一般用作副词
He is well.
fine……天气好，质量好

10.c
pay back:还钱
pay something:付钱　　　　pay again;再次付钱
pay it :付钱　　　　　　　once more:again
repay it =pay back

11.one……代词，指代上文的名词　　　The red one.
a different one
one……指代单数可数名词
another
He is a boy

【Special difficulties】
I asked him to lend me twenty pounds.
ask somebody to do something.
want to do something　　want somebody to do

会用sb to do sth的动词：
ask; want; tell; order; expect; wish; allow; advise; like; teach

一定不能说　hope somebody to do 正确用法：hope to do 或　hope that

Exercises A
1.order somebody to do
...the man to fire at the enemy
.........
Exercises B
1.He ask somebody to do something
He asked his wife to let him in.
2.prefer：宁可
I prefer him to die.
..........
b.salary wages　　 c.borrow from　　lend to
exercises:
1.salary;　
2.lend　slary/wages　
3.borrowed　(laptop:手提电脑）
4.wages.
5.wages.

难点：
...somebody to do something

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