2018-2019学年高中英语外研版选修九课件：Module 2 DNA—the Secret of
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高三英语课件 module2 DNA the secret of life Reading and vocabulary (外研选修9)
1. Is transgenic food the same as genetically modified food?
Yes.
2. What is the risk of producing a GM crop which kills pests?
It will kill good insects as well.
3. Why is the risk from carcinogens reduced in GM food?
Because there are fewer traces of cancer inducing pesticides in the food.
4. What is the risk to someone who is allergic to a particular gene?
(a) How can you reduce the amount of insecticides needed?
b What needs insecticides? the crops
(c) What can reduce cancer producing chemicals? using less insecticides
(b) contrasts with (a)
1. Scientists have found that a crop with agene that kills pests can leave a poison in the soil that kills helpful as well as harmful insects.
China?
Is GM food good or bad?
Not much is known about longterm effects of GM food on humans and the environment. It is “unpredictable”.
Yes.
2. What is the risk of producing a GM crop which kills pests?
It will kill good insects as well.
3. Why is the risk from carcinogens reduced in GM food?
Because there are fewer traces of cancer inducing pesticides in the food.
4. What is the risk to someone who is allergic to a particular gene?
(a) How can you reduce the amount of insecticides needed?
b What needs insecticides? the crops
(c) What can reduce cancer producing chemicals? using less insecticides
(b) contrasts with (a)
1. Scientists have found that a crop with agene that kills pests can leave a poison in the soil that kills helpful as well as harmful insects.
China?
Is GM food good or bad?
Not much is known about longterm effects of GM food on humans and the environment. It is “unpredictable”.
2018-2019学年高中英语外研版选修九课件：Module 2 DNA—the Secret of Life
It may well be that in the long term it is the developing world that benefits most from GM foods.It's true that for the next ten years or so GM crops may be too expensive.But the lesson of personal computers is applicable here —once the technology has been developed for moneyspinning crops, like maize, soybeans and cotton, it will filter down and become affordable for all.This doesn't mean, unfortunately, that famines will disappear, but severity and duration will be helped by an improved ability to produce and distribute food.
their roles in disease will become a big issue in the next century as the population of the developed world worries increasingly about its health.
The reason GM food will not go away is that we need a threefold increase in food production by the year 2050 to keep pace with the world's predicted population growth to ten or eleven billion.It's not just a question of more mouths to feed either.What is often forgotten is that all these extra people will take up space, reducing the overall land available for agriculture. The world has 800 million hungry people.Until now, food supplies have been increased by improved varieties, pesticides and artificial fertilizers: the green revolution.Now we're on the edge of a new revolution: a genetic one.
高二英语外研版选修9课件：Unit2《DNA—theSecretofLife》SectionⅢ
完成句子 ①I agree with him____________(在某种程度上)，but not entirely. ②____________(在很大程度上)，your success lies in your hard working.
【答案】 ①to some extent ②To a great extent
to...extent
到……程度；在……程度上
to some extent＝to a certain extent
在某种程度上
To what extent is this true of all schools? 这在多大程度上符合所有学校的实际情况？ To some extent，I am responsible for the delay. 在一定程度上，我对拖延负有责任。
was/were was/were都是be动词的过去式。was是单数形式，是am，is的过去式，were 是are的过去式，在虚拟语气中，were可表单数。was/were可用来构成各种过去 时态。 If I were you，I'd do it now. 如果我是你的话，我现在就会做的。 They were discussing the matter when I came in. 我进来时他们正在讨论这件事。 Ten years ago，I was very young.十年前，我很年轻。
2．it可指代心目中不太清楚或不明性别的人，特别是婴儿。 There was a knock at the door.“Who is it？” asked mother.有人敲门。“谁 呀？”母亲问道。 The baby is lovely.Do you like it? 这个小孩真可爱，你喜欢他吗？ 3．用于it is (was)．..that/who的强调句型中。 It is on the desk that I put my wallet last night. 昨天晚上我把钱包就放在了这个桌子上。
Module 2 DNA the secret of life Period Four Reading Practice 课件-优质公开课-外研版高中选修9精品
D．90 percent of US cattle will be eaten as beef.
答案 1.B 2.C 3.A
课堂互动探究
单词扫描 1．modify v．改动；更改 The office software has been modified over the years. 这个办公软件经过了多年的改变。 Patients are taught how to modify their diet. 病人获得有关如何调节自己饮食的指导。 【归纳拓展】 (1)modify v．缓和；使温和 to modify your behavior/language/views使你的行为/语言/观点更 容易让人接受
A．Some GM crops may need a lot of insecticides. B．By using GM crops we can reduce the need contain cancer producing chemicals.
vary
v．变化
Ⅱ.短语天地
1．be bad for 对……有害 2．call on 呼吁 6．place a ban on 止 7．apply 对……禁
3． tell the difference辨析；区 别 8．pay attention to 注意 4．up to now直到现在 5．in favour of 支持 9．from now on 从现在起 10．run into总计
Ⅳ.预读理解
阅读课文，根据课文内容选择。 1．Which sentence is the closest in meaning to the following one?
Yet reducing the amount of insecticides needed by using CM crops can reduce the amount of cancer producing chemicals—or carcinogens—that are found in food.
2018-2019学年高中英语外研版选修九课件：Module 2 Section Ⅰ Reading
Module 2
DNA—the Secret of Life
Section Ⅰ
Reading [Introduction & Reading and Vocabulary(1)]
[ 新生词汇初识] Ⅰ.词义搭配 1．question A．the work of inquiring into something thoroughly 2．hereditary B．become different；change；make sth.different 3．investigation C．ask what happens
Story A: John Waters killed a man but the police couldn't 3.________him, but after DNA technology invention, scientists Part 2 Four found the DNA from John's cell and that of the cells he left on stories about the victim 4.______exactly. DNA Story B: Mike and Julia are very rich and they wanted a goodlooking and intelligent child, so she had a small but very expensive 5.________ rid of 2.under investigation
5.perform an operation
6．As a consequence of
[ 教材语篇细研] Ⅰ.阅读P16－17课文内容，完成下面表格 Part 1 The discovery of DNA Crick and Watson had found the answer to one of the most important questions of biology—how do living things 1.________themselves? Every cell in our body contains our genes, which pass 2.______characteristics on to our children.
DNA—the Secret of Life
Section Ⅰ
Reading [Introduction & Reading and Vocabulary(1)]
[ 新生词汇初识] Ⅰ.词义搭配 1．question A．the work of inquiring into something thoroughly 2．hereditary B．become different；change；make sth.different 3．investigation C．ask what happens
Story A: John Waters killed a man but the police couldn't 3.________him, but after DNA technology invention, scientists Part 2 Four found the DNA from John's cell and that of the cells he left on stories about the victim 4.______exactly. DNA Story B: Mike and Julia are very rich and they wanted a goodlooking and intelligent child, so she had a small but very expensive 5.________ rid of 2.under investigation
5.perform an operation
6．As a consequence of
[ 教材语篇细研] Ⅰ.阅读P16－17课文内容，完成下面表格 Part 1 The discovery of DNA Crick and Watson had found the answer to one of the most important questions of biology—how do living things 1.________themselves? Every cell in our body contains our genes, which pass 2.______characteristics on to our children.
高二英语外研版选修9学案：知识导引Module2DNA—theSecretofLife含解析
课前导引一、词汇扫描根据句意及各题后括号中所给的汉语意思，从下面的方框中选择合适的单hereditary question alter nonetheless modify resistance approve issue bare peculiar1。
The building is part of our national ________(遗产)。
2。
I had a ________ (奇怪的)feeling that we’d met before.3.The students were________ （问）on the books they had been studying。
4.She likes to walk around in________ （赤裸的）feet。
5.They are making some ________ (改动)to the house.6.They ________ (宣布）a joint statement denying the charges.7。
The problems are not serious。
________ (不过），we shall need to tackle them soon.8。
She desperately wanted to win her father’s ________ （同意）。
9.The office software has been ________ （改进)over the years.10.Elderly people are not always ________ （抵制的)to change.答案:1。
heritage2。
peculiar 3.questioned4。
bare5。
alternations6。
issued 7。
Nonetheless 8.approval 9.modified 10。
resistant二、句型聚焦观察下列句子，试着归纳其画线部分所包含的句型结构.1.But it is very likely that their child will be born with a terrible,inherited illness。
高三英语课件：module2 DNA the secret of life (外研选修9)
trait 体弱的 violence 暴力
1.When you want to identify specific information in a passage ,you don’t need to read the text __i_n_d__e_tail
2.I agree with you ___t_o__a__g_r_e_a__t_e_x__t_e_n_t__
The fact is that scientists will be able to “read our genes in the near future.”
即使科学家们能够很快 而详细的描述我们的基 因，但并不意味着他们 将能够完全成功的预测 我们的未来。
Insurance companies may not want to insure you .
3.People within_s_u__r_a_nce had to pay for their own repairs.
4.He’s married to her.and she’s in love with his brother-inlaw,and…oh,it’s too__c__o_m__p_licated
4.What will happen to you if your genes predict certain illness?
5.Do you like to know your genes? why?
To a great extent,your genes decide your future.
2.Which sentence can be replaced by the following one?
In the next decade,scientists will make it possible to predict our future with our genes.
高二英语外研版选修9课件：Unit2《DNA—theSecretofLife》SectionⅣ
resistance to put an end to armed resistance make no resistance resist v. resistant adj. be resistant to
对……的阻力；对……的抵抗力 停止武装抵抗 未作抵抗 抵制；抵抗；反抗；忍住 抵抗的；对抗的；不受影响的 对……有抵抗力的到另外一个城市。 The exhibition____________another city two days later. ②那笔钱已转到我账上。 The sum of money has been____________my account. ③他就要调到另一个地方去。 He was about to____________another place.
完成句子 ①这项锻炼不是增强力量，而是增强柔韧性的。 This exercise develops suppleness____________strength. ②他把所有反对他的人都关进了监狱。 He threw all those that____________.
【答案】 ①as opposed to ②opposed him into prison
• 17、儿童是中心，教育的措施便围绕他们而组织起来。2021/7/312021/7/312021/7/312021/7/31
• 2、Our destiny offers not only the cup of despair, but the chalice of opportunity. (Richard Nixon, American President )命运给予我们的不是失望之酒，而是机会之杯。二〇二一年六月十七日2021年6月17日星期四 • 3、Patience is bitter, but its fruit is sweet. (Jean Jacques Rousseau , French thinker)忍耐是痛苦的，但它的果实是甜蜜的。10:516.17.202110:516.17.202110:5110:51:196.17.202110:516.17.2021 • 4、All that you do, do with your might; things done by halves are never done right. ----R.H. Stoddard, American poet做一切事都应尽力而为，半途而废永远不行6.17.20216.17.202110:5110:5110:51:1910:51:19 • 5、You have to believe in yourself. That's the secret of success. ----Charles Chaplin人必须相信自己，这是成功的秘诀。-Thursday, June 17, 2021June 21Thursday, June 17, 20216/17/2021
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Module 2
DNA—the Secret of Life
Currently there are some 20,000 chemicals in use, but the scientists only have detailed information on around 1,000 of them.To see the advantages of GM food you have only to consider the recent press revelation that the average lettuce receives eleven pesticide applications before it reaches the supermarket shelf.I'm sure chemicals and
their roles in disease will become a big issue in the next century as the population of the developed world worries increasingly about its heod will not go away is that we need a threefold increase in food production by the year 2050 to keep pace with the world's predicted population growth to ten or eleven billion.It's not just a question of more mouths to feed either.What is often forgotten is that all these extra people will take up space, reducing the overall land available for agriculture. The world has 800 million hungry people.Until now, food supplies have been increased by improved varieties, pesticides and artificial fertilizers: the green revolution.Now we're on the edge of a new revolution: a genetic one.
It may well be that in the long term it is the developing world that benefits most from GM foods.It's true that for the next ten years or so GM crops may be too expensive.But the lesson of personal computers is applicable here —once the technology has been developed for moneyspinning crops, like maize, soybeans and cotton, it will filter down and become affordable for all.This doesn't mean, unfortunately, that famines will disappear, but severity and duration will be helped by an improved ability to produce and distribute food.
1．According to the passage, we can see that the author has a/an________ attitude towards GM food. A．disappointed C．hopeful B．indifferent D．uncertain
2．Which of the following statements is wrong? A．Chemicals and their roles in disease will become a big problem in the future. B．In the long term it is the developed world that benefits most from GM foods. C．It's true that for the next ten years or so GM crops may be too expensive. D．Famines will not completely disappear even though GM food become affordable in the future.
As we move into this new era of agriculture we're embarking on an experiment. But remember that the world has seen a number of experiments before.We have been refining species of wheat for several thousand years.Genetic engineers like me are not doing anything as dramatic as making a cabbage into a cauliflower—as has been done by plant breeders in the past.We're simply tapping into the whole gene pool, rather than concentrating on one species at a time.
DNA—the Secret of Life
Currently there are some 20,000 chemicals in use, but the scientists only have detailed information on around 1,000 of them.To see the advantages of GM food you have only to consider the recent press revelation that the average lettuce receives eleven pesticide applications before it reaches the supermarket shelf.I'm sure chemicals and
their roles in disease will become a big issue in the next century as the population of the developed world worries increasingly about its heod will not go away is that we need a threefold increase in food production by the year 2050 to keep pace with the world's predicted population growth to ten or eleven billion.It's not just a question of more mouths to feed either.What is often forgotten is that all these extra people will take up space, reducing the overall land available for agriculture. The world has 800 million hungry people.Until now, food supplies have been increased by improved varieties, pesticides and artificial fertilizers: the green revolution.Now we're on the edge of a new revolution: a genetic one.
It may well be that in the long term it is the developing world that benefits most from GM foods.It's true that for the next ten years or so GM crops may be too expensive.But the lesson of personal computers is applicable here —once the technology has been developed for moneyspinning crops, like maize, soybeans and cotton, it will filter down and become affordable for all.This doesn't mean, unfortunately, that famines will disappear, but severity and duration will be helped by an improved ability to produce and distribute food.
1．According to the passage, we can see that the author has a/an________ attitude towards GM food. A．disappointed C．hopeful B．indifferent D．uncertain
2．Which of the following statements is wrong? A．Chemicals and their roles in disease will become a big problem in the future. B．In the long term it is the developed world that benefits most from GM foods. C．It's true that for the next ten years or so GM crops may be too expensive. D．Famines will not completely disappear even though GM food become affordable in the future.
As we move into this new era of agriculture we're embarking on an experiment. But remember that the world has seen a number of experiments before.We have been refining species of wheat for several thousand years.Genetic engineers like me are not doing anything as dramatic as making a cabbage into a cauliflower—as has been done by plant breeders in the past.We're simply tapping into the whole gene pool, rather than concentrating on one species at a time.