a.关于=on eg. give sb advice on how to learn English
b.到处 look about环视
C. 大约
d.be about to do 即将做
eg. I was about to leave when the phone rang.
2.above在……上方/over在垂直的上方 反义：below在……下方
3.across 横穿，从表面
through竖穿，从内部
4.after在（位置，时间）后 / behind在（位置）后
before在（位置，时间）前/in front of在（位置）前
look after/run after/ after=according to
在（时间）后
in+时间段+将来时 how soon？
after +时间段+过去时 when？
after + 一点时间（常用于一般将来时or一般过去时）when？
时间段+later+过去时 when？
如：The baby stopped crying after half an hour.
The baby will stop crying in half an hour.
They will visit their teacher after Friday.
5.behind
He hangs his coat on a nail behind the door.
他把外套挂在门后的一颗钉子上。
Beyond 超过
This work is beyond my grasp.
这件工作非我力所能及。
His bad behavior is beyond a joke.
他的不良行为超出了开玩笑的范围。
beside
6.沿着 a. along（没有方向性）
We went for a walk along the shore.
我们沿着海岸散步。
b.up（向上，向说话者走来）
The boy climbed up the tree.
这个男孩爬上树。
c.down（向下，向说话者走去）
Will you walk down to the lake with her？
你跟她走到湖那头去好吗？
7.在…之间 a.between在两者之间
b.among在三者或以上之间
eg.1.She was sitting between John and Tom.
2. What were you doing between eight and nine？
3. What‘s the defference between the two words？
4. we found a little house among the trees.
5. The students lived and worked among the workers.
Between ，among 是介词，必须 +宾格：between you and me
8. at+地点（小地方） in+地点（大地方）
eg. I‘ve been at our school/in the USA.
在桌边 at the table
at表示"向，朝" eg. look at / laugh at
shoot sb 射死，射中/ shoot at sb朝…射击
eg. The hunter shot at the tree ，but he didn‘t shoot any birds.
At+时间点
At+价格
At+速度
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