1、Challenge
(1)Challenge sb to do sth 。向…挑战，邀请…比赛
They challenge us to a swimming contest.
(2)to give (accept) a challenge ( 接受 ) 挑战
2、Share
(1)Share 部分，分
Everybody ought to have his proper share.
(2)Share 参与、贡献
I had no share in the mater.
(3)Share (with，between) 分配，共有
They shared the profits between them.
I will share with you in the undertaking.
3、Instead
(1)instead 代替
If you cannot go，let him go instead.
(2)instead of 代替
I will go instead of you.
4、Manage
(1)manage to do 完成，达成
We finally managed to get there in time.
(2)manage with 办事，处现事务
We can‘t manage with these poor tools.
(3)manage on 生活，过活
How will she manage with her husband gone.
5、Afford
(1)afford to do 足以承担
I cannot afford to pay such a high price.
(2)afford 产生
Reading affords pleasure.
6、Rather
(1)would rather do 宁愿
He said he would rather stay at home.
(2)rather than 宁愿
I had rather dance than eat.
7、Ever
(1)ever 曾经
Have you ever been there?
(2)ever 究竟
Why ever didn’t you go.
(3)ever 如果
If the band(乐队)ever plays again，we will dance.
(4)ever so=very
Thank you ever so much.
8、Available
(1) available 通用的，有效的
The season ticket is available for three months.
(2)available 可用的，可达到的
9、Else
(1)else 此外，别的
Where else did you go?
(2)else 否则，不然
Hurry，else you‘ll be late.
10、Involve
(1)involve 包括
Housekeeping involves cooking， washing dishes， sweeping and cleaning.
(2)involve 使陷于
One foolish mistake can involve you in a good deal of trouble.
(3)involve 使纠缠，使难得
A sentence that is involved is hard to understand.
(4)involve 包围
Clouds involved the hilltop