编辑:
2015-11-29
[剖析及答案] ①unlike ②unlike ③ likely
4. multiply vt.&vi. 增多;增加(某事物);繁殖;乘
① When animals have more food , they generally multiply faster.
动物有更多的食物时,它们一般繁殖更快。
② If you multiply four by three the answer is twelve.
如用3乘4,答案是12。
③As we climb up the mountain, the danger and difficulty multiply.
我们越向山顶攀爬,危险和困难越是倍增。
[活学活用]
① 世界上所有的生物将一代一代地永远繁衍下去。
All the living things on earth will ____________________________________ without end。
② 友谊可以增添欢乐,减轻悲伤。
Friendship __________________ joys and divides griefs.
[剖析及答案] ①multiply ②multiplies
5. exist vi. 存在;生存
没有被动形式,也不能用于进行时。
[拓展]existence n.存在;生存
come into existence = come into being 开始存在、成立
in existence 现存的
① But problems still exist. 但是问题仍然存在。
② The idea exists only in the minds of poets. 这种观念只存在于诗人的心中。
③ The Republican Party came into existence in1854.
共和党是1854年成立的。
[活学活用]
①这是现存最早的汉语手稿
This is the oldest Chinese manuscript __________________________.
②火星上有生命吗?
Does life _______________?
[剖析及答案] ①in existence ②exist on Mars
二、重点短语精讲:
1. in time
介词短语,意为“最后;最终”,此外, 它还可以表示“迟早”“及时”(=sooner or later)
① You must go off now if you want to attend the meeting in time.
你若想及时参加会议,必须现在动身。
②Don’t worry-I’m sure things will get better in time.
不要担心-我相信情况迟早会有所好转的。
③ They managed to send the patient to hospital in time.
他们设法将病人及时送到了医院。
[活学活用]
和time有关的短语:
for the time being 暂时;眼下
at one time 曾经,一度
at times 有时
at the same time 同时
on time 按时
in no time 立刻
all the time 一直;始终
take one’s time 从容进行;别紧张
at a time 每次;一次
once upon a time 从前
kill time 消磨时间
in one’s spare time 在某人的业余时间
① I've told Paul several times to knock at the door before coming in! but he's forgetting things _.
A. on time B. in time C. in no time D. all the time
② The manager tapped me on the shoulder and said, “You are just _______.”
A. at times B. in time C. at a time D. in no time
[剖析及答案]
① 考查关于time的短语辨析,句意为“好多次我告诉保罗进屋前敲门,他总忘”因此答案为D
② 考查关于time的短语辨析。经理拍拍我的肩膀说:“你来的正是时候”。答案是B
2.now that
now that作连接词时,常用来引导一个原因状语从句。常说明原因摆在双方面前,大家都很清楚,无须加以说明。含义上相当于 “since”。常常译为“既然”。在口语中有时可以省略“that”。
① Now that/Since the fog is clearing, you can see the mountain in the distance.
雾已散,你能看到远处的山了。
② Now (that) the kids have left home, we’ve got a lot of extra place.
孩子们都离开家了,我们住着就更宽绰了。
③ You ought to have a good rest now (that) you’ve finished the work.
既然你已完成了工作,你就应该好好休息一下。
[活学活用]
① 既然他们能骑马,那么猎取那些曾经大量存在于美洲草原上的野牛就更容易了。
_____________________________, it became easier to hunt the bison, a type of cattle which used to exist in huge numbers on the plains of America.
② _________ you’ve got a chance, you might as well make full use of it.
A. Now that B. After C. Although D. As soon as
[剖析及答案]
①Now (that)/Since they could ride horses
②该句意为“既然你已得到一次机会,你还是充分利用它为好”。might as well“还是…的好”;now that意为“既然”,连接一个表示原因的状语从句。
3. break out
(指战争、火灾、疾病等的)突然发生、爆发(没有被动语态和进行时态)
① The American Civil War broke out in 1861.
1861年美国爆发了南北战争。
② SARS broke out in Asian countries in 2003 and Bird Flu in Europe in 2005.
2003年亚洲上些国家爆发了“非典”疫情,而2005年欧洲出现了禽流感。
[活学活用]
和break有关的短语:
break down 分解,(计划等)失败,(机器等)坏了;(身体)垮了
break up 分解,拆散,结束,(关系)破裂,(夫妻)离异
break off 使终止,折断
break into 闯入,破门而入;打断
break in 闯入(vi.);插嘴
break away from 脱离
break through 突破;打通
精品小编为大家提供的高二英语必修三Unit4知识点,大家仔细阅读了吗?最后祝同学们学习进步。
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