人教版高中英语选修七Unit3Underthesea知识点总结.doc
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选修七 Unit3 Under the sea
-、重点词汇总结
1. itness vt
(1) be present at(someplace)and see it 当场见至〃 H 击
Did anyone itness the accident?有人亲眼看到那次事故了吗？
(2) “见证了 =时间、地点等作主语。
Recent years have itnessed the collapse of the steel industry 近年钢铁业口渐衰落。 n.目击者，证人
The police found the itness to the murder case 警察找到了 那件谋杀案的 fl 击者。
There as no itness at the scene of the accident 在事故现场没有证人。
itness 还可表示"作证""证明"，常用"itness to sth/doing sth”
a live itness to活生生的证人
bear/give itness to sth 为 ... 作证
itness—box(^) = itness stand (美)证人席
2. sort out
(1) 分类，整理
I am just sorting out the papers that can be thron aay
我在整理可以被扔掉的文件。
⑵解决(问题/困难)
We've got a fe little problems to sort out 我们有几个小问题耍解决。
近义词:sort through查看并挑选t\\
He as sorting through a pile of papers on his desk 他在整理桌 了上的一堆文件。
3 ・ accommodation n
(l) rooms, espfor living in 房间，住所
The high cost of accommodation makes life difficult for students in London
由于住宿费用昂贵，伦敦的学生感到生活困难。
⑵lodgings, rooms and food(often pl)膳宿(在英国英语为不口J数名词，在美国英语
为可数名词，常用复数)
Can e find accommodations at a hotel for tonight?我们今晚能找到旅馆住宿吗？ 短语：make accommodation for 为 .......... 提供膳宿
4. yell v. &n.叫喊/叫声，喊声
(1 )vshout often because you are frightened, an gry, or excited She yelled(out)at her naughty child她朝她那淘气的孩子人喊。 They yelled at him to stop他们朝他大喊，让他停卜。
(2) na loud shoutega yell of delight/arning
5 • ahead of
(1) (时间、空间上)在……之前
(2) 领先，比……强、好
6. head朝 .... 方向移动；带领
We headed the boat out to sea我们将船驶向外海。
They are heading home他们」E朝家走去。
Who is heading the Party?该党现在db谁在领导？
Whose name heads the list?谁的名字列在名单的最前头？
head for=leave for/start for 朝 .... 方 向走去
7. flee(fled, fled)vi/vt 逃走,逃掉,消失
And those others are stopping it diving or fleeing out to sea
其他的虎鲸阻止它潜水逃入大海……
The spectators fled in panic hen the bull got loose
那只公牛挣脱了束缚，吓得观众四下逃窜。
We ere forced to flee to the country 我们被迫逃往国外。
8. aimv
aim(sth)at sb/sth 瞄准，对准
aim at doing sth/aim to do sth 力求达到,力争做到
n.瞄准；目的，目标
9. drag v
⑴拖，拉，拽
He dragged the table into the corner 他把桌了拖到角落里。
(2) 勉强某人做
He hates parties, and e have to drag him into going 他讨厌参加聚会,我们得硬拉 着他去。
If he fails, he'll drag us all don ith him如果他失败了，他会把我们人家一起拖下水。
10. depth n ……的深度，深……的地方
its body as dragged siftly by the killers don into the depths of the sea 它的尸体被虎鲸们迅速拖向深海去了。
Plant the beans at a depth of about six inches把种了埋到大概六英尺深的地卜。 短语：in depth深入地，彻底地 the depths of the jungle 从林深处 the depths of the country 穷乡僻壤
the depths of the inter 隆冬
the depths of one's heart 心灵的深处
the depths of despair 绝望的深渊
11 ・ have a good feed on 饱餐一顿
feed： nmeals or food for babies or animals 餐、顿。女口：
When is the baby's next feed?下一次要什么时候喂这个婴儿？
v. give food to 喂养
feed sb/sthon sth = feed sthto sb/sth 喂 ... 吃 ....
feed on以 .... 为食(一般指动物)近义词live on
The prison is required to feed and clothe the prisoners 监狱被要求向犯人提供食物 和衣服。
Several children ere feeding bread to the ducks = Several children ere feeding ducks on
bread几个孩了止在喂鸭了吃面包。
Ols feed on mice and other small animals猫头鹰以老鼠和其他小动物为食。
12. From James's face, I could see he as terrified of being abandoned by us 从詹姆斯的脸上，我能看出他非常恐慌，生怕被我们遗弃。
He abandoned his ife and children 他抛弃了 他的妻 了和孩了。
此处abandon的意思是“放弃，抛弃”，相关短语有：
(1 )背弃祖国/朋友：abandon one's country/friend
(2) 抛弃家庭：abandon one's family
(3) 革除陋习:abandon a bad habit
⑷放弃职位/希望/计划/主意：abandon one's post/hope/plan/idea
13. help out帮助……(摆脱困境或危险)
My mother helped me out(ith some money)hen I lost my job 我的母亲在我失业的时候给我金钱上的援助帮我摆脱了困境。
The children help out in their father's shop hen things are busy 父亲店里忙的时候，孩子们在店里帮忙。 14. approach vi& vt接近，靠近n.接近，道路，方式，方法
15. hold up⑴支撑,举起;⑵延迟，阻碍
二、重点句型总结
1 being +done(作原因、时间等状语)；逻辑主语与done是被动关系
Being badly ounded, the hale soon died 鲸因为受了重伤，没过多久就死了。(B7
P20)
Being badly injured in a traffic accident, he had to be in hospital for at least to eeks dtl
于在一起交通事故严重受伤，他不得不住院至少两个星期。
2 It + be + adj (for/of sb)+ to do sth 做某事是 ... 的
The sea as rough that day and it as difficult to handle the boat 那天风高浪人，很难 操作船只。(B7P21)
若形容词(adj )是指代事物的特征时,如important, easy, difficult, strange, necessary,等，则用for；如果是说明人的性格特征的形容词，如kind, polite, foolish, armhearted,
cruel, stupid 等，贝用 of。
⑵It is very kind of you(你真好)to help me ith my math
3 It takes (sb) time/money/energy to do sth做某事花费某人多少时间/金钱/精力
It took over half an hour to get the boat back to James 用了半个多小时才把船划回 到詹姆斯身边。(B7P21)
It took them a long time to be friends again after the quarrel 争吵之后，他们花了 很 长时间才重新成为朋友。
三、重点语法总结
1 .现在分词(-ing形式)的构成。
v-ing形式由“do+ing”构成，其否定形式是"not doing”, v—ing可以带宾语 或状语构成v-ing短语，没有人称和数的变化，但有时态和语态的变化。
2.动词一ing形式的被动式分一般式和完成式：
(1) 一般式：表示这个被动的动作正在进行或与谓语表示的动作同时发生。
(2) 完成式：强调这个被动的动作在谓语动词所表示的动作Z前完成。
语态时态 主动语态 被动语态
一般式 (not)doing (not)being done
完成式 (not)having done (not)having been done
3动词一ing的被动式的句法功能。
(1) 作主语o 女口: So being killed by sharks as a common thing
(2) 作宾语，用在介词后或需要带一ing形式作宾语的动词后。如：
