外研版（2019）选择性必修第二册 Unit5 A delicate world 单元考点突破学案（含答案）

名师原创：Unit5 单元考点突破
●词汇精讲
1. imagine vt. 想象; 设想；胡思乱想; 误以为；料想;认为
【原句再现】
Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seal, existed in perfect harmony with their natural habitat for thousands of years. (教材P50)
【词块积累】
imagination n 想象; 想象力; 想象出来的事物; 幻想:
a creative/ vivid imagination创造性/生动的想象
be successful beyond imagination出乎意料地成功
imaginative adj. 富于想象力的; 爱想象的
imaginary adj.想象中的;虚构的
an imaginary world/ friend虚构的世界/假想的朋友
imagine (sb) doing sth
imagine + that / wh-从句
imagine...to be
【精品例句】
He’s letting his imagination fly.
他正展开想象
Imagination is more important than knowledge.
想象力比知识更重要
You didn’t really see anything—it was only imagination.
实际上你什么也没看到，那只不过是个幻觉而已
Can you imagine life without electricity
你能想象没有电的生活会是什么样子吗
I can’t imagine living without TV!
我无法想象没有电视的生活!
I can hardly imagine Peter sailing across the Atlantic Ocean in five days.
我几乎不能想象彼得五天之内横渡了大西洋
Try to imagine that you are all alone on a deserted island.
试着想象一下你孤身一人在荒岛上的情形
I often imagine what my life will be like in the future.
我经常想象我将来的生活会是什么样子
I had imagined her to be older.
我本以为她的年龄还要大一些
【高考链接】
-- Look! He's running so fast! --Hard to ____ his legs were once broken. (山东卷)
A. know B. imagine C. realize D. find ( B )
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
It is difficult to imagine his _____ (accept) the decision without any consideration.
(浙江卷) (accepting)
2. attack n. 攻击，进攻，袭击；抨击；vt&vi. 进攻，攻击；抨击；（疾病、自然灾害等）袭击，侵袭
【原句再现】
These small animals quickly took over the island, eating the birds’ eggs and attacking baby birds. (教材P50)
【词块积累】
an air attack 空袭
make fierce attacks on/against…对….发动猛烈袭击
under attack 遭到攻击
a personal attack 人身攻击
a heart attack 心脏病发作
【精品例句】
When an animal is under attack, it can run away or fight back.
动物遭到攻击时，要么逃走要么反击
He suffered from a heart attack.
他心脏病发作了
Snake will only attack if you disturb them.
蛇只有受到侵扰时才会主动攻击
His remarks were attacked in the newspaper.
他的言论在报纸上受到抨击
Recently, the H7N9 bird flu has attacked many cities.
最近，H7N9禽流感侵袭了许多城市
【高考链接】
Travelers should not feed the wild animals in a close distance because they may ____ people. (江西课改卷)
A. strike B. attack C. hit D. beat (B)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
I heard that an old man was _____ by a fierce bear last week.
A. struck B. attracted C. attached D. attacked (D)
3. lead to 导致；通向
【原句再现】
This in turn led to more cats hunting the birds. (教材P50)
【词块积累】
lead sb. to＋someplace　带领某人到某地
lead sb. to do sth. 使/带领某人做某事
lead to sb. doing sth. 促使/致使某人做某事
lead a happy life 过着幸福的生活
lead the way 引路，带路
【精品例句】
Such a mistake would perhaps lead to disastrous results.
这样一种错误可能导致灾难性的后果
All roads lead to Rome.
条条大路通罗马
Too much work and too little rest often lead to illness.
过量的工作和过少的休息会引起疾病
But in cities, limited space has led to people looking for new solutions.
但是在城市里，有限的空间已经致使人们寻找新的解决方案
The long hot summer has led to serious water shortages.
漫长而炎热的夏季已经导致了严重的水源短缺
【高考链接】
Our English teacher has a strange way of leading us ________ (study) English actively.(福建卷) (to study)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
This street leads you _____ the station and you can find the supermarket nearby. (to)
4. die out 灭绝；逐渐消失；逐渐熄灭
【原句再现】
The end result was that parakeets, once large in number and native to the island, died out in 1891. (教材P50)
【词块积累】
die away　逐渐减弱，逐渐模糊，逐渐消失
die down 逐渐降低，逐渐平息
die off 相继死去
die of 死于(内因)
die from 死于(外因)
die for 为……而死
【精品例句】
With society developing，many old customs are dying out.
随着社会的发展，许多古老的风俗在逐渐消失
With the living environment becoming worse and worse，many of the earth's species are dying out.
随着生存环境变得越来越糟，地球上的很多物种正在消失
Once the fire has died out，the rescue team will move in immediately.
一旦大火熄灭，救援队就会马上进入
【高考链接】
Because of the snowstorm，the sheep that the old man raised died ______ one by one. (湖北卷) (off)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
His footsteps died _____ in the darkness. (away)
The excitement died _____ as time went by. (down)
It used to be considered part of a young man's duty to die _____ his country. (for)
5. multiply v．(使)大大增加，(使)倍增；乘；(使)繁殖
【原句再现】
Loose on the island, they did what rabbits do best—they multiplied rapidly and began eating the native vegetation and digging holes, which caused soil erosion. (教材P50)
【词块积累】
multiple adj.　多种多样的
multiple choice 多项选择
multiplicity n. 多种多样
【精品例句】
The children are already learning to multiply and divide.
孩子们已经开始学习乘法和除法了。
Their problems have multiplied since last year.
自去年以来，他们的问题倍增。
It is possible to multiply these bacteria in the laboratory.
在实验室里繁殖这些细菌是可能的。
【高考链接】
The driver of the crashed car received _______ (multiply) injuries. (湖北卷) (multiple)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
We are all amazed at the ______ (multiply) of the nature. (multiplicity)
6. in turn轮流，依次；反过来
【原句再现】
This in turn led to more cats hunting the birds. (教材P50)
【词块积累】
take turns to do sth./in (doing) sth. 轮流做某事
It's one's turn to do sth. 轮到某人做某事
take one's turn 依次，轮到某人
by turns 轮流，依次
温馨告知：in turn表示“轮流；反过来”，而in return (for)则表示“作为(对……)的回报”。
【精品例句】
The girls took it in turn to wipe down the tables after meals.
女孩子们饭后轮流擦桌子。
The students were summoned in turn to be interviewed.
学生依次被召入进行面试。
This in turn will also have a negative impact on your productivity.
反过来，这些也会影响你的工作效率。
【高考链接】
It's your turn ________ (recite) the passage. (福建卷) ( to recite)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
We take turns _______ (make) dinner. (to make/in making)
We make dinner by _______ (turn)． (turns)
7. consequence n. 结果; 后果; (正式用语) 重要(性); 重大
【原句再现】
The cats in consequence turned their attention- and their stomachs – back to the native birds, killing up to 60,000 each year. (教材P51)
【词块积累】
take/ face the consequences承担/面对后果
as a consequence / in consequence结果; 因此
as a consequence of sth / in consequence of sth 由于….的缘故
consequent adj. (常用于名词前) (正式用语) 随之发生的; 作为结果的
consequently adv.结果; 因此; 所以(=as a result)
【精品例句】
The consequence of a rising sea level would be widespread flooding.
海平面升高的后果将是洪水
our opinion is of little consequence to me.
你的看法对我来说并不重要。
It rained yesterday and as a consequence the match was canceled .
昨天的比赛因下雨而被取消
She was over the age limit and, in consequence, her application was rejected.
她超龄了，结果她的申请被拒绝了。
My father coughs frequently as a consequence of in consequence of smoking.
因为吸烟，我父亲经常咳嗽
【高考链接】
This paper analyses several questions and _______ (consequent) in the using process of some computer games. (全国卷) (consequence/consequences)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
_______ consequence of his bad conduct he was dismissed. (In)
8. decrease v．(使)减少；(使)变小 n．减少；降低
【原句再现】
But although the virus caused the rabbit population to decrease from 130，000 to around 10，000, it also meant less food for the cats. (教材P51)
【词块积累】
decrease in sth. (在某方面)降低，减少
decrease to…. 减少到…..
decrease by ….. 减少了…..
on the decrease 在减少
increase v．& n. 增加，提高
increase to…. 增加到….
increase by…. 增加了….
【精品例句】
This species of birds is decreasing in numbers every year.
这种鸟的数量在逐年减少。
There has been some decrease in military spending this year.
今年的军费开支有所减少。
People should decrease the amount of fat they eat.
人们应减少脂肪的摄入量。
【高考链接】
A local newspaper remarks that crime is ________ the decrease. (陕西卷) (on)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
The traffic accidents in the city decreased ______ 30% last year. (by)
The population of China has increased ______ about 14 million. (to)
9. trap vt. 使困住；诱捕；诱骗；坑害 n．圈套；陷阱；诡计；夹子
【原句再现】
In the 1980s, traps and dogs were used to catch the cats. (教材P51)
【词块积累】
be/get trapped in …. 被困在……中
trap sb. into (doing) sth. 使某人陷入……的圈套；使上当
fall into the trap of doing sth. 掉进……的陷阱
fall/walk into a trap 掉进陷阱
set/lay a trap for …..为……设圈套
【精品例句】
We became trapped by the rising floodwater.
我们被上涨的洪水困住了。
We realized too late that we were caught like rats in a trap.
等我们发觉自己已成瓮中之鳖时已经太晚了。
I would hate him to think I'm trying to trap him.
我不愿让他以为我是在给他设圈套。
【高考链接】
The old man was trapped ______ the burning house at that moment. (湖南卷) (in)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
The shopkeeper trapped me into ______ (buy) their poor quality milk. (buying)
Don't fall ______ the trap of investing all your money in one place. (into)
10. turn out 结果是；证明是
【原句再现】
It turned out that they developed an immunity to the virus, and their numbers exploded once again. (教材P51)
【词块积累】
turn up　出现，到达；开大，提高，增加；找到，发现
turn off 扭转(开关、水龙头等)，关掉(煤气、自来水等)
turn on (扭转开关)打开(自来水)，开(煤气、灯、电视等)
turn in 转身进入；交出
turn to (向某人)求助；注意；翻到(……页)
turn down (扭转形状等)调小(煤气等)，关小，调小(收音机等的声音)；拒绝
turn over 翻过来，翻转
【精品例句】
Cosgrave's forecast turned out to be quite wrong.
科斯格雷夫的预测最后证明是大错特错。
Sometimes things don't turn out the way we think they're going to.
有时事情并不像我们认为的那样发展。
It turned out that I knew the person who got shot.
结果发现我认识那个中枪的人。
【高考链接】
The car was turned ______ and the driver seriously injured. (湖北卷) (over)
Be calm and sit tight and everything will turn ______ well. (山东卷) (out)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
Please remember to turn ______ all the lights when you leave. (off)
She turned ______ every offer of help. (down)
11. explode v．爆炸，爆发；激增；勃然大怒
【原句再现】
It turned out that they developed an immunity to the virus, and their numbers exploded once again. (教材P51)
【词块积累】
explode with…. 因(愤怒)而发作
explode into…. 爆发出……
explode into laughter 哄堂大笑
explosion n. 爆炸；爆发；激增
explosive adj. 易爆炸的；爆炸性的
【精品例句】
They were clearing up when the second bomb exploded.
他们在清理时第二颗炸弹爆炸了。
Do you fear that you'll burst into tears or explode with anger in front of her
你害怕在她面前突然大哭或勃然大怒吗？
The population explodes to 40，000 during the tourist season.
旅游季节人数暴涨至4万。
【高考链接】
Highly ______ (explode) gas is naturally found in coal mines. (江苏卷) (explosive)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
Are you about to explode ______ excitement (with)
Stress can build up and explode _______ problems. (into)
12. owe v．应该做；对……负有……的义务；欠(债)；感激；归功于…
【原句再现】
This intervention is a long, much- delayed ending to a sad story, but we humans owe it to the island to give it a happy ending. (教材P51)
【词块积累】
owe sb. sth. 欠某人某物
owe...to... 把……归功于……
owing to….由于….
【精品例句】
The country owes billions of dollars to foreign creditors.
这个国家欠外国债权人数十亿美元。
The play owes much to French tragedy.
这部戏颇受法国悲剧的影响。
He was so good to me that I can never repay the debt I owe him.
他对我太好了，我永远也还不清这份人情。
【高考链接】
________ (owe) to the rain, they could not come. (天津卷) (Owing)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
He owes his good health ______ his regular life. (to)
I owe an apology _______ him. (to)
13. participate v．参加，参与
【原句再现】
So, I am here on Macquarie Island to participate in the program to tackle this very problem. (教材P51)
【词块积累】
participate in ＝ take part in =join in 参加，参与
participant n. 参加者，参与者
participation n. 参加，参与
participation in　参加；参与
participate in (doing) sth. with sb. 与某人一起参加/参与做某事
participate with sb. in sth. 与某人分担某事
【精品例句】
More than 400 children participated in the clean up of the park.
400多个孩子参加了公园的清扫活动
Terry can't participate in the match because he has hurt his foot.
特里不能参加比赛，因为他扭了脚
He asks whether I can participate in the meeting. 他问我是否会参加会议
Everyone in the class is expected to participate actively in these discussions.
希望班级每个孩子都积极参与这些讨论
Participation (participate) in sporting events will help us lead a healthier life.
参加运动比赛将有助于孩子们过更健康的生活
【高考链接】
As far as I know，he has been an active _______ (participate) in the discussion. ( 陕西卷) (participant)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
Encouraged by the teacher，the _______ (participate) actively took part in the English speech contest. Their _____ (participate) inspired the rest of the class to study hard. (participation)
14. escape vt&vi. 逃走，逃跑，逃脱；（液体，气体等）泄漏； n. 逃跑，逃脱
【原句再现】
Recent years have seen more and more pet sliders escaping or being released from homes, and some owners believe to release them into the wild is no big issue. (教材P53)
【词块积累】
escape from…
escape sb’s attention/notice 逃过某人的注意/被某人忽视
make one’s escape 逃走
escape doing sth. 逃脱…
a fire escape 安全门
【精品例句】
The hunter tried to escape from the forest, but he lost his way.
猎人试图逃出森林，但是他迷路了
A boy escaped unhurt when the five in his room exploded
房间里发生爆炸时男孩逃了出来，没有受伤
He narrowly escaped death in an earthquake.
他在一次地震中死里逃生
You are lucky to escape being punished.
你真走运，逃脱了惩罚
A small hole allowed smoke to escape from the top.
一个小孔能让烟从顶部冒出来
He had a narrow escape.
他九死一生
【高考链接】
This bear didn’t escape _______ (kill) by a cruel hunter. (山东卷) (being killed)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
They escaped _____ prison at last. (from)
●本单元其它重要词组
15. in harmony with…. 与….和谐；与….协调；与….一致
Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seal, existed in perfect harmony with their natural habitat for thousands of years. (教材)
We must ensure that tourism development is in harmony with the environment.
16. in consequence 因此；结果
The cats in consequence turned their attention- and their stomachs – back to the native birds, killing up to 60, 000 each year. (教材)
He worked hard, and in consequence he passed the examination.
17. once and for all 一劳永逸地；彻底地；最后一次
This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all. (教材)
The Supreme Court’s ruling should decide this matter once and for all.
●句型点拨
1. Nor位于句首引导倒装句
【原句再现】
Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat for thousands of years. (教材P50)
句式分析：本句是一个部分倒装句，nor置于句首，句子用部分倒装，因此would提前，表示“……也不”。
【能力拓展】
※ Neither +助动词/系动词be/情态动词＋主语, “….也不”
※ so＋助动词/系动词be/情态动词＋主语：意为“……也一样”，表示前面的情况也适合另一个人或物，此时该句为倒装句；
※ so＋主语＋助动词/系动词be/情态动词：意为“……确实如此”，表示词意前面的说法，此时该句不是倒装句。
【精品例句】
She has no experience in typing, nor does the skill interest her.
她没有打字经验，那种技术也引不起她的兴趣。
You can't cancel the contract, nor can anybody else.
你不能撤约，任何人都不能。
He never went again, nor did he write to apologize.
他没再去过，也没写信致歉。
【高考链接】
They haven’t finished their homework，_______ did I. (neither/nor) (陕西卷)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
I like English. So _______ (do) Jack. (does)
They could do the job, so _______ we. (could)
2. 强调句型
【原句再现】
It's a tragic story that began in 1810 when humans arrived on the island. (教材P50)
句式分析：本句是一个强调句，强调主语a tragic story。
【能力拓展】
※ 强调结构的陈述式为“It is (was) ＋ 被强调部分 ＋ that (who)...”。该结构可用于强调主语、宾语、状语等，但不能强调谓语动词。该句式中用that或who的区别是：当被强调的指人时，用that或who均可；当被强调的不是指人时，则只能用that(注意不用which)。
※ 一般疑问句的强调结构就是将be提到句首，即使用“Is/Was it＋ 被强调部分 ＋that/who...”。
※ 特殊疑问句的强调结构句型为“疑问词(Who/What/When/Where/Why/How)＋is/was it that...”这样的形式。
【精品例句】
It was in May that you can see this kind of flower.
你在五月可以看到这种花。
It is science fiction that the boy loves to read.
这个男孩爱看的是科幻小说。
It was how the young man had learned five foreign languages that attracted the audience's interest.
引起观众们兴趣的是这个年轻人怎样学会了五种外语。
【高考链接】
It is not who is right but what is right _________ is of importance. (陕西卷) (that)
【考点训练】
在空白处填入适当内容（一个单词）或括号内单词的正确形式
It was I _________ saw Tom in the park this morning. (who/that)
●现在完成时的被动语态（详见语法课件）
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