uint 4 word study&language points[上学期]

课件33张PPT。Unforgettable experienceUnit 4Reading1. look around = look about 环顾四周， 四处寻找2.hear/ see sb. doing 现在分词作宾语补足语。
感官动词 see, feel, hear, watch, notice +宾语
+宾补 doing sth (现在分词做宾补,表宾语动作
正在进行)
do sth (省不定式,
done
①我听见她正在唱英文歌
I heard her singing an English song．(正在发生)
②我看见他过了马路。
I saw him cross the road．
③我没注意你进来。 (已完成或全过程)
I didn't notice you enter．
④我看见你的弟弟被一个大孩子打了。
I saw your little brother beaten by a big boy．
⑤我发现她的手被绑在背后。
I found her hands tied behind her back．(宾语与过去分词是被动关系)①我听见她正在唱英文歌
I heard her singing an English song．(正在发生)
②我看见他过了马路。
I saw him cross the road．
③我没注意你进来。 (已完成或全过程)
I didn't notice you enter．
④我看见你的弟弟被一个大孩子打了。
I saw your little brother beaten by a big boy．
⑤我发现她的手被绑在背后。
I found her hands tied behind her back．(宾语与过去分词是被动关系)3. Before she could move…
她还没来得及迈步，就听见一声巨响，接着是可怕的隆隆轰鸣。
before引导状语从句,“ 在…之前” /“ 还没来得及”①我还没来得及向她解释她就生气了。
She was angry before l could explain to her．
②我还没来得及回答第一个问题，他又问了一个问题。
He asked a second question before l could answer the first question．
③大火持续了大约四个小时，消防人员才得以控制。
The fire lasted about four hours before the fire fighters could control it.
4.advance(v.) (n.) 前进，进展
A month has passed and the work has not advanced. (v)
Nothing can stop the advance of society. (n)in advance 预先，提前
It’s cheaper to buy flight ticket in advance．
advanced (adj.) 高级的，先进的
advanced English 高级英语
an advanced worker 先进工作者 advanced maths 高等数学 5. be upon 逼近，临近
be + prep. Eg. be into / be off①The Christmas holiday will soon be upon us． 圣诞节就要到了。
②Almost at once，the winter was upon them． 几乎是眨眼间冬天逼近了他们。 6. swallowing the garden
现在分词短语，在句中作伴随状语.类似：
e.g. Before they reached the house, a new great wave came, sweeping down the trees, and sweeping them down too.
He was standing, holding onto a tree that grew against the wall.
There she stopped, listening to the strange sounds.fight/struggle with 和…一起战斗 7. fight for为了争取…而战
? People in the world are fighting for
their peace／freedom／rights.
fight against与…作战；为反对…而斗争 ?Man is fighting against pollution／natural disasters．? English fought with (against) Germany
in that war． 在那场战争中英国对德作战。8.介词after前后接相同的名词时．
相当于“one十名词十after another‘’，意为“一个接一个”，名词前不用冠词。
①He sent me letter after letter to invite me to his home.他一封接一封地给我写信，邀请我去他家。
②day after day
week after week
month after month
9.must+do 表示对现在事情的推测 must+ be doing 表示对正在发生事情的推测
must+ have done 表示对已经发生事情的推测 Helen is Lucy’s good friend. She must know Lucy’s phone number.
We can hear loud voices in that room, they must be quarreling.
I met Tom at the gate a moment ago. He can’t have gone to Australia.10.strike (struck，struck／stricken)
(1)打,敲,击; 打中,击中(相当于hit); 撞，触(礁)
① Strike while the iron is hot．趁热打铁。
② A stone struck me on the head ．
③ Their ship struck an iceberg ．(2)擦(火柴)
I struck a match and held it to his cigarette．
(3) )(某种想法)忽然出现，忽然想起
A happy thought struck her．
她突然产生了一种幸福的想法。 (4)给人某种印象或感觉
How does the plan strike you?
你觉得这个计划怎么样? (5) )(钟)敲(响)
The clock is striking twelve．钟正敲12点。
(6)罢工 They are striking for higher pay．
strike常表示用力打或敲，可以是一次或多次。
hit比strike稍弱，指一次性的打或击中。beat指连续多次的打，也指有节奏的击打。Explanation1. There she saw a wall of water that was quickly advancing towards her.
在那里，她看见一堵墙似的洪水快速
地朝她涌来。
1）wall of fire/water, ... a tall mass of
something such as fire or water, that
stops anything from getting past. The boat was hit by a wall of water.
巨浪击打着小船。
2) advance n.（forward movement or development） 前进；进展；进行
in advance 预先，事先
pay in advance 预先付款
stop the enemy’s advance 阻止敌军前进You cannot stop the advance of old age.
你不能阻止老龄化的步伐。
China has made great advances in industry.
中国在工业方面进步很大。
There have been great advances in space
travel in the last 20 years.
在过去的二十年里，太空旅行发展很快。 advance v. (move forward or develop)
前进；进步；晋级；进展
The soldiers advanced toward the town.
士兵们向镇上进发。
Scientific knowledge has greatly advanced
since the 16th century.
科学知识自16世纪以来已有显著的进步。 He worked so well that his boss advanced
him to a higher position.
他工作表现非常好，所以得到上司的提
拔。
A month has passed and the work has not
advanced.
一个月过去了，可是工作却没有进展。2. However, before she could think twice, the water was upon her.
然而, 还没有来得及细想, 洪水就向她扑来。
1）think twice: have a think about
what to do next 三思，再三考虑
2）before: (earlier than the time when)
“在……之前”或“还没来得及” Before they reached the house, a new wave came, sweeping down the tree.
他们还没来得及到那间房子，又一个大浪打了过来，击倒了那棵树。
It was dark before she realized it .
不知不觉中天就黑了。 The roof fell before he had time to rush
out.
他还没有来得及跑出来，房顶就塌了。
注意before的不同译法：
The fire lasted about four hours before
the firefighters could control it.
大火烧了大约四个小时消防队员才把它
控制住。 It won’t be long before you feel sorry for what you have done.
不久你就会对你的所作所为感到后悔的。
The examination began before she got everything ready.
她还没作好准备, 考试就开始了。 3. Tree after tree went down, cut down by the water, which must have been three meters deep.
一棵一棵的树被起码有三米深的洪水冲倒。
1)句中“must have done”表对过去所发
生事情的推测。 It must have rained last night, because
the ground was wet this morning.
昨晚肯定下雨了，因为今天早上地面
全是湿的。
I must have been asleep when you
called me last night.
你昨晚给我打电话的时候，我肯定睡
着了。注意：
1)反意疑问句应为对过去发生的那个动作进行的提问；同时应注意句子中的时间状语。
You must have been to Beijing several times, weren’t you?
你肯定到北京去过好几次了, 是吗？ Li Tao must have picked up English
three years ago, didn’t he?
李涛一定是三年前开始学英语的, 是吗？
Smith must have got to London by now,
hasn’t he?
史密斯现在肯定已经到了伦敦, 是吗？ 2) must have done表对过去所发生事情
的肯定性推测, 如果是否定性的推
测, 要用can’t /couldn’t have done。
You couldn’t have seen the play last week.
你不可能在上周看了这部戏。3)may/might have done也是对过去事情
的推测，但把握性不大。
They may have finished the work.
他们也许已完成了工作。
注意：
might have done 和could have done
还有“本可以做（实际没做）”之意。 You might at least have answered my
letter.
你本可以给我回信。(本可以, 但没有)
You could have made greater progress.
你本可以取得更大的进步。(有能力，
但没有)4) Should (ought to) have done表示“本应该做，但并没有做。”用ought to语气强一些。
I should have thought of it.
我本应该想到这一点。（但并没有想到） We ought to have given you more help.
我们本应该给你更多的帮助。（但并没
有给予更多）
They shouldn’t have left so soon.
他们本不该那么快离开。（但已经离开
了）