5.介词proposition.ppt

重点难点精华提炼

at 黎明,午,夜,点与分,
山脚,门口,速价心。
at dawn 在黎明时
at noon
at night
at six o’clock
at the foot of the hill
at the gate
at the speed of 100km per hour.

in 年,月,季,周,早午晚。
in the morning
in 1997
in spring
光影,特征,方式,衣帽
in the shade of the tree.
the woman in white(black, red, yellow)
将来时态 in…以后
They e back in 10 days
他们将10天后回来。

in 语言、单位、材料
I can’t express my idea in English.
This board was made in gold.

on 有日无论早午晚
on May 1st
on the morning of Oct 1st.
on a summer evening
关于,收音,农场,
on the radio
on the farm
a talk on traveling

几个介词的区别:
两地关系
相含用in ,相连用on, 相距用to
China lies in the east of Asia.
Gansu is on the east of Qinghai.
Japan is to the east of China.
2. 在树上
本身东西用 on 外来东西用in
There are a lot of apples on the tree.
There are a lot of birds in the tree.

时间介词辨析2 (since, for, from, by)
后接过去的时间点,主句用完成时
后接时间段,主句用完成时
说明动作开始的时间,
I have been interested in making model plane ____ the age of eight.
We have learnt 3000 words ____ the end of this term.
He started work ________ eight o’clock.
He has worked ________ eight o’clock.
since
from
for
后接时间点,跟过去的时间点则用一般过去时,跟将来的时间点用一般将来时,by now 用现在完成时,
since,
for,
from,
by
by
光飘添嗅***
came back ______ half an hour.
will go out ___ half an hour.
will visit her _______ Friday.
teacher will be back three months ____.
5. –Frank, when will the short meeting begin?
-You e _____ 2:30. If e 10 minutes _____ that time, the meeting will be over.
时间介词辨析4(in, after, later)
after
in
after
later
in + 一段时间(用于一般将来时) after + 一段时间(用于一般过去时) after + 点时间(常用于一般将来时)
一段时间+ later
at