人教版英语选修8unit2单词详解(共19张PPT)
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选修八unit2单词解析(课堂PPT)
In a word 总之
辨析 altogether, all together 1.let’s all together sing. 全部，一起
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7.object vi 反对(oppose/be opposed to ) object to sb/sth/doing sth
I object to such treatment .
adj. 必须做的；义务的；强迫的；强制的 compulsory adj.
n. 歌剧；歌剧团；歌剧院
opera n.
n. 合唱；合唱队
chorus n.
n. 一条（面包）
loaf n.
n. 面粉
flour n.
vt. 欠（账、钱、人情等）；归功于 owe vt.
adv. 立刻；不久
shortly adv.
favour n.帮助；恩惠；赞成；支持；偏袒；偏爱 favourable adj.有利的；支持的 favourite adj.& n.最喜欢的 in one’s favour 对某人有利 do sb a favour=do a favour for sb 帮助某人 owe sb a favour 欠某人情
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2. undertake (undertake-undertook-undertaken) vt. 承担,从事；着手做某事;答应，同意 undertake responsibility/a task/a project undertake to do…同意;答应；着手做某事 undertake that…同意；答应；担保 她答应三个月之内还我钱。 She undertook to pay back the money in three months. 我保证你一定会喜欢这次旅行。 I can undertake that you will enjoy the trip.
辨析 altogether, all together 1.let’s all together sing. 全部，一起
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7.object vi 反对(oppose/be opposed to ) object to sb/sth/doing sth
I object to such treatment .
adj. 必须做的；义务的；强迫的；强制的 compulsory adj.
n. 歌剧；歌剧团；歌剧院
opera n.
n. 合唱；合唱队
chorus n.
n. 一条（面包）
loaf n.
n. 面粉
flour n.
vt. 欠（账、钱、人情等）；归功于 owe vt.
adv. 立刻；不久
shortly adv.
favour n.帮助；恩惠；赞成；支持；偏袒；偏爱 favourable adj.有利的；支持的 favourite adj.& n.最喜欢的 in one’s favour 对某人有利 do sb a favour=do a favour for sb 帮助某人 owe sb a favour 欠某人情
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2. undertake (undertake-undertook-undertaken) vt. 承担,从事；着手做某事;答应，同意 undertake responsibility/a task/a project undertake to do…同意;答应；着手做某事 undertake that…同意；答应；担保 她答应三个月之内还我钱。 She undertook to pay back the money in three months. 我保证你一定会喜欢这次旅行。 I can undertake that you will enjoy the trip.
人教版2017高中英语(选修8)unit 2 (PPT课件)
“Where these new mutations actually come from is still a mystery，” said Professor Harberd.“They may arise during the regeneration process itself or during the cell divisions in the donor plant that gave rise to the root cells from which the regenerate plants are created.We are planning further research to find out which of these two processes is responsible for these mutations.What we can say is that nature has safely been employing what you might call a ‘cloning’ process in plants for millions of years，and that there must be good evolutionary reasons why these mutations are introduced.”
谢谢观看！
Unit 2
Cloning
Why plant 源自clones” aren’t identical
克隆后的植物与母体完全相同吗？植物克隆与 动物克隆有区别吗？这种研究有什么意义呢？
Science Daily (Aug 4,2011)—A new study of plants that are reproduced by cloning has shown why cloned plants are not identical. Scientists have known for some time that cloned organisms are not always identical：their observable characteristics and traits can vary，and this variation can be passed on to the next generation.This is despite the fact that they are derived (获得) from genetically identical founder cells.
人教课标版高中英语选修8Unit2reading(共17张PPT)PPT
Concentrate your attention Grasp important words and sentences
Sentences patterns to pay attention to:
1. The popularity of films such as Jurassic Park, in
Crazy English:
1. She holds the view that senior three students have to make full use of every minute to work hard at their lessons.
2. The advantage of cycling to work is that we can live a low-carbon life.
Practice (translation): 1. 我从这次文化交流周学到了很多，其中让我印
象最深刻的是英国的艺术发展。
2. 这是因为辛勤的工作最终会得到好结果。 3. 去国外学习的优点是我们可以对外国的社会，
文化和历史有更好的理解。
4. 假如多给些照顾，那棵树会长的更好。
1.I have acquired a great deal from the Cultural Exchange Week, of which the development of English art strikes me most. 2. This is because hard work will finally pay off.
3. Seated in the car, he waved goodbye to all the fans.
Crazy English: 1. 她认为高三学生应该充分利用每一分钟来努
Sentences patterns to pay attention to:
1. The popularity of films such as Jurassic Park, in
Crazy English:
1. She holds the view that senior three students have to make full use of every minute to work hard at their lessons.
2. The advantage of cycling to work is that we can live a low-carbon life.
Practice (translation): 1. 我从这次文化交流周学到了很多，其中让我印
象最深刻的是英国的艺术发展。
2. 这是因为辛勤的工作最终会得到好结果。 3. 去国外学习的优点是我们可以对外国的社会，
文化和历史有更好的理解。
4. 假如多给些照顾，那棵树会长的更好。
1.I have acquired a great deal from the Cultural Exchange Week, of which the development of English art strikes me most. 2. This is because hard work will finally pay off.
3. Seated in the car, he waved goodbye to all the fans.
Crazy English: 1. 她认为高三学生应该充分利用每一分钟来努
人教版高中英语选修八第二单元知识点(共29张PPT)
15.Is it in favour of cloning or against cloning?他 赞成还是反对克隆? in favour of 赞成；有利于
The score was 80 to 78 in favour of the
guest team. 比分是80比78，客队获胜。
The exchange rate is in our favour today. 今天的兑换率对我们有利。 短语：in sb’s favor对某人有利 do sb a favor =do a favor for sb帮某人忙 owe sb.a favour欠某人情
He is doing a commercial course at the local college. 他在本地学院学商业课程。
The play was a commercial success. 这出戏从营利角度看很成功。
6. undertake vt. (undertook; undertaken) The procedure is difficult to undertake, of course. The scientist undertakes the experiment. I can undertake the responsibility for the changes. The lawyer undertook a new case. undertake vt 着手做, 实施，从事, 承担
4. It also happens in animals when twins identical in sex and appearance are …
identical adj. ①完全相同的 (常与with / to连用) ②同一的, 同样的
人教版英语选修八 Unit 2 Cloning知识点课件43张
5.owe vi.欠 (账、钱、人情等);归功于…… 教材原句 ①You owe the lady an apology.你该向那位女士道歉。 ◆单句改错 ②Owing the heavy rain, our get-together is cancelled. Owing后加to ③I owe this to the doctor that I am still alive. this→it
buy→buying
◆写作微练 ⑦因为有人可能作弊,所以很多人反对网上投票。(2016江苏书面表达) Because it's likely that someone cheats, many people object to voting on the Internet .
点拨 (1)have no objection to (doing) sth.对(做)某事没有异议 raise an objection to(doing) sth.对(做)某事有异议 (2)object v.反对,不赞成 object to sb./sth./doing sth.不同意、不赞成、反 对…… (3)objective n.目标 adj.真实的,客观的
◆一句多译 我突然想到明天我有一个重要的会议要参加。(2016课标全国Ⅲ书面 表达) ⑨ It strikes me that I have an important meeting to attend tomorrow. (strike) ⑩ It occurs to me suddenly that I have an important meeting to attend tomorrow. (occur)
4.strike vi. & vt.打;撞击;罢工;袭击;报时;划(火柴) n.罢工 教材原句 ①...proves how the idea struck a mixture of fear and excitement into people's hearts.……证明了这一想法是如何使人们感到既兴奋又恐惧 的。
Unit 2 词汇课件-2021-2022学年高中英语人教新课标选修八
用于pay off sth 或 pay sth off结构。 通常接account, debt, loan等作宾语。
2. He studied hard before the examination, and it paid off. He
made an A.
取得成功；得到好结果 vi
用于sth pays off 结构。通常用effort, hard work, persistence等作主语。
失去兴趣
12. The boys started to switch off after the first speech.
13. The effects of the drug began to wear off. 逐渐消失
缩合词
telecast = television + (broad)cast 电视广播
newscast = news + (broad)cast 新闻广播 sportscast ／ sportcast = sport + (broad)cast 体育节目
单词 cast 的基本义是“扔、投掷”，衍生出了大量衍生义，如 “浇铸”(把融化的铁水“扔”到模具里)、“钓鱼”(把钓钩“扔” 出去)、“计算、加”(扔石子来计算)、“演员阵容”(把演员“扔” 到舞台上)。词组习语：cast a glance (一瞥)；cast an actor in a play (为某戏剧选演员)；cast a movie (为电影选角)；casting director (选 角导演)；cast sb as (将某人描绘为)。
人教⑧ – 2
③ forbid (sb) doing sth:
The regulations forbid smoking in this room.
新人教英语词汇句型复习课件选修8Unit2loningppt课件
9．attain vt.获得；达到(水平、年龄、状况等)
共 119 页
4
10．forbid vt.禁止；不准→forbade(过去式)→forbidden (过 去分词)
11．accumulate vt.积累；聚积
12．owe vt.欠(账、钱、人情等)；归功于…… 13．retire vi.退休；离开→retirement n．退休 14．bother vt.打扰 vi.操心 n．烦扰
共 119 页
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●重点句型 1．Then came the disturbing news that Dolly had become seriously ill. 之后传来了多莉得了重病的令人烦恼的消息。 2．Altogether Dolly lived six and a half years, half the length of the life of the original sheep. 多莉总共存活了6年半，是被克隆羊的寿命长度的一半。
共 119 页
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[范文1] Shooting, originated as a means of survival, developed into a sport only in the late 19th century. The sport first appeared in 1896, but none were contested during the 1904
and 1928 Games. The sport returned to the Olympics in 1932.
Women were first allowed to compete in the Olympic shooting in 1968. The sport has grown steadily from just three shooting events at the 1896 Olympic Games to 17 today.
人教版高中英语选修八课件：Unit 2 Using language(共40张PPT)
35784612
True or False
1. Scientists are still experimenting with cloning mammals because they think it can make money. F
2. The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning. F
4. The reasons why a group of cloned animals all die of the same illness do NOT include __C__. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new disease
in the group to be able to resist new illnesses.
2. Why is it wrong to clone an extinct animal if it would live in a zoo?
It is not a good idea to clone an animal that would live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.
True or False
1. Scientists are still experimenting with cloning mammals because they think it can make money. F
2. The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning. F
4. The reasons why a group of cloned animals all die of the same illness do NOT include __C__. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new disease
in the group to be able to resist new illnesses.
2. Why is it wrong to clone an extinct animal if it would live in a zoo?
It is not a good idea to clone an animal that would live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.
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I owe it to the famous doctor that I am still alive. 我仍然活着，这要归功于那位很有名的医生。
拓展： owing to 因为，由于
14. bother vt.打扰 vi. 操心
It bothers sb to do sth /It bothers sb that ... 做某事使 人烦恼
A snowball struck him on the back of the head. 一个雪球击中了他的后脑勺。
It strikes sb that ....某人突然想起
It suddenly struck me that I should have been in favour of him
我突然想到，我本来应该支持他的。
16. resist vt.抵抗，对抗
resist doing sth 反对做某事
They tried hard to resist her attacking move. 他们拼尽全力来抵抗她的进攻。
拓展： resistance n. 抵制，抵抗 resistant adj. 抵制的，抵抗的
bother doing sth费心/花费时间做某事
驾照考试不及格，这让汤姆很烦恼。 It bothered Tom that he had failed his driving test.
15. strike (struck, struck) 打，撞击，罢工
strike sb+ 介词+the+身体部位 打某人...
6. cast v.扔，投掷
cast down 使失望（一般用于被动语态）
翻译：听到这个坏消息之后，她沮丧了好几天。 She was cast down for several days after she heard the bad news.
7. object vi. 反对，不赞成
object to sb/sth 反对某人/某事
7. The tourism in this place will have an impact _o_n____the local environment.
11. forbid （forbade，forbidden）vt. 禁止，不准
forbid sb to do sth 禁止某人做某事
forbid sb from doing sth 禁止某人做某事
make a diference to
对..有影响
9. obtain vt.获得，赢得（尤指经努力） 10. attain vt.获得，达到（尤指经努力）
attain one's goal 达到某人的目的
His effort paid off and he attained his goal at last. 他的努力得到了回报，并且最终达到了目的。
拓展： break down出故障----breakdown n.故障 break out 爆发 ------- outbreak n. 爆发 come out 出现，结果是------outcome n.结果，效果
1. British English is d__if_fe_r_e_n_t_from American English. They_d_i_ff_e_r_in many minor aspects, such as spelling and proununciation. (differ) 2. Our budget is extremely tight, so you'd better work out _ex_a_c_t_l_y__(exact) how much money will go for each part of the project. 3. The research,u_n_d_e_r_ta_k__en(undertake) by Brighton-based Mindlab International, suggests that silent offices may be the least productive. 4. Our teachers often encourages us that every minute we spend on studying will finally pay__o_ff______in the near future.
拓展： attainable adj.可获得的 unattainable adj. 达不到的，无法实现的
5. Liu lei insisted that he merely did what everyday would have done and strongly objected to_b_ei_n_g_c_a_ll(ecdall)
拓展； different adj. 不同的，有区别的 difference n. 差别，差异
2. exact adj. 精确的，准确的
to be exact(=exactly speaking) 确切地说
翻译：我不知道这个房间的确切面积。 I don't know the exact size of the room.
拓展： pay back 还钱，报复 pay for 支付...的钱
5. breakthrough n.突破，重大进展
make/achieve a breakthrough 取得突破性进展
Don't be discouraged! We have made a great breakthrough in a way. 别灰心！从某种意义上讲，我们已经取得了很大的突破。
object to doing sth 反对做某事
No one objected to the plan at the meeting yesterday. 昨天的会议上，没有人反对这项计划。
拓展： objection n. 反对，不赞成 object n. 物体，对象 objective adj. 客观的，不带个人感情的
4. pay off
(1) 达到目的，取得成功（不及物动词短语） With the help of a lot of people, our plan paid off.
(2) 付清，偿清 （及物动词短语） The poor lady worked hard day and night in order to pay off their debts.
8. impact n. 巨大的影响
have an impact on sth/sb 对...有巨大影响
翻译：阅读能够影响我们看世界的方式。 Reading can have an impact on the way we see the world.
归纳：“影响”的其他表达： have an effect/influence on
a hero. 6. At the meeting, Marx raised an _o_b_je_c_ti_o_n_to working late night and he _o_b_je_c_te_dthat most of the workers were too old for the jod.（object）
拓展：关于favour的短语 ask sb a favour 请某人帮个忙 do sb a favour帮某人个忙
13. owe vt. （1）欠（账、钱）
owe sb for sth 因某事欠某人...
（2）归功于，归因于
owe it to sb that ...把...归功于某人 owe sth to sb/sth把某事归功于某人/某事
unit2 Cloning
1. differ vi. 不同于，意见相左
differ from 不同于... differ in...在...方面不同
My younger brother and I differ from each other in many ways. 我弟弟和我在许多方面都不同。
8. There are laws in some countries which forbid __s_ho_w__in_g__(show) advertisements at inappropriate times and places. 9. My sister was against my suggestion while my brother was __in____favour of it. 10. I owe__i_t ____to my teacher that I have made great progress in English. 11. --Do you know where my blue coat is?
forbid doing sth禁止做某事
翻译：他身体不好，所以医生禁止他喝酒 He was in poor health, so the doctor forbade him to drink wine.
12. in favour of 赞成，支持
翻译：我已经对她讲了我们的计划，她表示完全赞同。 I have told her about our plan and she is completely in favour of it.
-- Don't bother __lo_o_k_i_ng_(look) for it, I'm sure it will turn up some day. 12. The study found that when the same genes were brought to life in mice, they had the same cancer__re_s_is_ta_n_c_e(resist)as elephants.
拓展： owing to 因为，由于
14. bother vt.打扰 vi. 操心
It bothers sb to do sth /It bothers sb that ... 做某事使 人烦恼
A snowball struck him on the back of the head. 一个雪球击中了他的后脑勺。
It strikes sb that ....某人突然想起
It suddenly struck me that I should have been in favour of him
我突然想到，我本来应该支持他的。
16. resist vt.抵抗，对抗
resist doing sth 反对做某事
They tried hard to resist her attacking move. 他们拼尽全力来抵抗她的进攻。
拓展： resistance n. 抵制，抵抗 resistant adj. 抵制的，抵抗的
bother doing sth费心/花费时间做某事
驾照考试不及格，这让汤姆很烦恼。 It bothered Tom that he had failed his driving test.
15. strike (struck, struck) 打，撞击，罢工
strike sb+ 介词+the+身体部位 打某人...
6. cast v.扔，投掷
cast down 使失望（一般用于被动语态）
翻译：听到这个坏消息之后，她沮丧了好几天。 She was cast down for several days after she heard the bad news.
7. object vi. 反对，不赞成
object to sb/sth 反对某人/某事
7. The tourism in this place will have an impact _o_n____the local environment.
11. forbid （forbade，forbidden）vt. 禁止，不准
forbid sb to do sth 禁止某人做某事
forbid sb from doing sth 禁止某人做某事
make a diference to
对..有影响
9. obtain vt.获得，赢得（尤指经努力） 10. attain vt.获得，达到（尤指经努力）
attain one's goal 达到某人的目的
His effort paid off and he attained his goal at last. 他的努力得到了回报，并且最终达到了目的。
拓展： break down出故障----breakdown n.故障 break out 爆发 ------- outbreak n. 爆发 come out 出现，结果是------outcome n.结果，效果
1. British English is d__if_fe_r_e_n_t_from American English. They_d_i_ff_e_r_in many minor aspects, such as spelling and proununciation. (differ) 2. Our budget is extremely tight, so you'd better work out _ex_a_c_t_l_y__(exact) how much money will go for each part of the project. 3. The research,u_n_d_e_r_ta_k__en(undertake) by Brighton-based Mindlab International, suggests that silent offices may be the least productive. 4. Our teachers often encourages us that every minute we spend on studying will finally pay__o_ff______in the near future.
拓展： attainable adj.可获得的 unattainable adj. 达不到的，无法实现的
5. Liu lei insisted that he merely did what everyday would have done and strongly objected to_b_ei_n_g_c_a_ll(ecdall)
拓展； different adj. 不同的，有区别的 difference n. 差别，差异
2. exact adj. 精确的，准确的
to be exact(=exactly speaking) 确切地说
翻译：我不知道这个房间的确切面积。 I don't know the exact size of the room.
拓展： pay back 还钱，报复 pay for 支付...的钱
5. breakthrough n.突破，重大进展
make/achieve a breakthrough 取得突破性进展
Don't be discouraged! We have made a great breakthrough in a way. 别灰心！从某种意义上讲，我们已经取得了很大的突破。
object to doing sth 反对做某事
No one objected to the plan at the meeting yesterday. 昨天的会议上，没有人反对这项计划。
拓展： objection n. 反对，不赞成 object n. 物体，对象 objective adj. 客观的，不带个人感情的
4. pay off
(1) 达到目的，取得成功（不及物动词短语） With the help of a lot of people, our plan paid off.
(2) 付清，偿清 （及物动词短语） The poor lady worked hard day and night in order to pay off their debts.
8. impact n. 巨大的影响
have an impact on sth/sb 对...有巨大影响
翻译：阅读能够影响我们看世界的方式。 Reading can have an impact on the way we see the world.
归纳：“影响”的其他表达： have an effect/influence on
a hero. 6. At the meeting, Marx raised an _o_b_je_c_ti_o_n_to working late night and he _o_b_je_c_te_dthat most of the workers were too old for the jod.（object）
拓展：关于favour的短语 ask sb a favour 请某人帮个忙 do sb a favour帮某人个忙
13. owe vt. （1）欠（账、钱）
owe sb for sth 因某事欠某人...
（2）归功于，归因于
owe it to sb that ...把...归功于某人 owe sth to sb/sth把某事归功于某人/某事
unit2 Cloning
1. differ vi. 不同于，意见相左
differ from 不同于... differ in...在...方面不同
My younger brother and I differ from each other in many ways. 我弟弟和我在许多方面都不同。
8. There are laws in some countries which forbid __s_ho_w__in_g__(show) advertisements at inappropriate times and places. 9. My sister was against my suggestion while my brother was __in____favour of it. 10. I owe__i_t ____to my teacher that I have made great progress in English. 11. --Do you know where my blue coat is?
forbid doing sth禁止做某事
翻译：他身体不好，所以医生禁止他喝酒 He was in poor health, so the doctor forbade him to drink wine.
12. in favour of 赞成，支持
翻译：我已经对她讲了我们的计划，她表示完全赞同。 I have told her about our plan and she is completely in favour of it.
-- Don't bother __lo_o_k_i_ng_(look) for it, I'm sure it will turn up some day. 12. The study found that when the same genes were brought to life in mice, they had the same cancer__re_s_is_ta_n_c_e(resist)as elephants.