冀教版高中英语必修3Unit8 Protecting the Environment(词汇)

Uint8词汇
一．Key words
1.lose.丢失；失败；没赶上；走的慢
Lose ones balance失去平衡; lose his patient没治愈病人; lose patience 失去耐心; lose two sons失去两个儿子; lose heart失去信心; lose ones life 丧命; lose reason失去理智; lose one’s way 迷路; lose a game/ battle输掉比赛; lose one’s train/ bus错过车. Lose an opportunity失去机会; lose 10 seconds慢10秒
2.bet.v.打赌。

bet on sth.对---打赌
Bet against sth打赌某事不可能发生
I bet that he wont come
我敢说他回来
3.cattle /n.牛
five head of cattle.
五头牛
4.reserve.v.保留；保存
copy—right reserves.
保留版权
They reserved themselves for the next battle.
他们为了下一场战斗养精蓄锐
5 .stillness.n.寂静；
still.adj. still lake寂静的夜晚/ still night寂静的夜晚/ keep still一动不动/ stand still站着别动
6.reduce.v减少
reduce+by 表示减少了若干时用BY
reduce to 表示减少到什么程度用TO
they reduced the price by 10 percent.
They reduced the amount to 40 percent.
7.destroy,表示破坏，往往是毁灭性的
damage是部分破坏，可以恢复
the earthquake destroyed the ancient tower.
They are repairing the damaged car.
8.variety , complexity
variety.n.表示变化性，着重多样性
I want more variety in my food.
Complexity.意思是复杂性，着重某事物的组成部分相互关系，错综复杂。

9.due to; owing to ; because of; thanks to
这几个都表示，由于，用时要区分好
.due to一般用做ADJ短语使用，而owing to一般为副词短语使用。

如
the population in this area is chiefly due to the development of some plastic industry.
I am late owing to an accident.
Thanks to由于，Thanks for为---而感谢
Thanks to your help,we finished the task on time.
Thanks for your kindness,and I will never forget you.
because of比owing to更常用
10.responsibility, duty.
Responsibility.表示责任心，强调意义上应该尽的责任。

He is not a man lacking in responsibility.
他不是一个没有责任心的人。

Duty.表示职责，责任，义务，表示依据法律，道德要求必须达到的义务，职责等。

Every person has a duty to his country .we should put duty before pleasure.
On duty值班
Off duty 下班
Do one’s duty尽责。