人教版高一英语必修4 Unit2 Working the land language-points课件（共23张PPT）
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| 名称 | 人教版高一英语必修4 Unit2 Working the land language-points课件（共23张PPT） |  | |
| 格式 | ppt | ||
| 文件大小 | 847.5KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2020-09-23 15:16:39 | ||
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1． If so, what did you do to grow them?
如果这样，你做什么来种植它们？
2．Crops such as peas or soybeans put important
minerals back into the soil， making it ready for crops such as wheat or corn that need rich and fertile soil.
像豌豆和大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于种植要求土壤肥沃的农作物比如玉米和小麦。
3．He would much rather keep time for his hobbies.
他宁愿把时间花在自己的爱好上。
4.Using his hybrid rice farmers are producing harvests twice as large as before.
使用这种杂交水稻，农民们现在的收成是原来的两倍了。
5.This special strain of rice make it possible to produce one?third more of the crop in the same fields.
这种特殊的水稻使得在同一块农田里多生产三分之一的庄稼成为了可能 。
6.Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields.
袁隆平博士不用扩大土地面积而寻找到一条增长稻米产量的方法。
7．Born into a poor farmer's family in 1931，Dr Yuan graduated from Southwest Agriculture College in 1953.
袁隆平博士1931年出生在一个贫穷的农民家庭，1953年毕业于西南农业大学。
8.Dr Yuan Longping grows what is called super hybrid rice.
袁隆平博士种植的是被称为“超级杂交水稻”的稻种。
9．Thanks to his research，the UN has more tools in the battle to rid the world of hunger.
10. What do you think would happen if tomorrow there was suddenly no rice to eat？
如果明天突然没有米吃了，你认为将会发生什么？
1. If so...如果这样……,
(教材原句)If so，what did you do to grow them？
如果这样的话，你做了些什么来种植这些植物？
联想拓展
①if so意为“如果是这样的话”，是if引导的条件状语从句的省略形式，可以用来代替整个从句，省略前面出现过的主语和动词，表示肯定意义；如果表示否定意义，则用if not。
②由if，when构成的此类省略形式还有：
if necessary 如果有必要的话if any 如果有的话
if possible 如果可能的话
when necessary 当必要时
when possible 当可能时
句型学与练
完成句子
④下周你哪一个晚上有空，如果有空，我们去跳舞吧。
Have you got a free evening next week？__ __，let's go dancing.
⑤如果可能的话，我想要在最高层的房间。
____ ______，I want a room on the highest floor.
(1)有人感到冷吗？如果没有的话，我们把窗户打开吧。
Is anybody feeling cold? If not, let us open the windows.
(2)如果有的话指出句中的错误。
Point out the mistakes in the sentences, if any.
(3)如果必要的话，我将亲自去那儿一趟。
If necessary, I will go there myself.
If so
If possible
2. He would much rather keep time for his hobbies.
他宁愿把时间花在自己的爱好上。
联想拓展
1)would rather do sth.＝prefer to do sth.宁愿(可)做某事
would rather (not) do sth.宁愿(不)做某事
2)would rather do...than do...
＝would do...rather than do...＝rather than do...would...
＝prefer to do...rather than do... prefer sth 更喜欢某物
宁愿做……也不愿做；与其做……倒不如做……
3)would rather＋从句(从句使用虚拟语气)
would rather (that) sb.did sth.宁愿某人做某事(用一般过去时表示与现在或将来事实相反)
would rather (that) sb.had done sth.宁愿某人做过某事(过去完成时表示与过去的情况相反)
4)would rather have done本来想做……而未实现
I would rather that you hadn't missed the exhibition.
我真希望你没错过展览会。(事实上已错过)
—Do you mind if I smoke？
你介意我抽烟吗？
—Well，I'd rather (that) you didn't.
嗯，最好别抽。
Rather than ________ on a crowded bus，he always prefers ________ a bicycle.
A．ride；ride B．riding；ride
C．ride；to ride D．to ride；riding
If you let challenges stimulate ______ annoy you，much more can be accomplished than you thought possible.
A．rather than B．other than
C．less than D．more than
一句多译
我宁愿步行也不坐出租车去那儿。
① .
② .
③ .
I would rather walk there than take a taxi.
I would walk there rather than take a taxi.
I prefer to walk there rather than take a taxi.
3.This special strain of rice makes it possible to
produce one-third more of the crop in the same
fields.(L3，P10)这种特殊的稻种使得同样的田地多收获三分之一的产量。
句型：make it possible(for sb.)to do使(某人)做某事成为可能
巧记法：6123记忆法 6动词1 it, 2宾补（形/名）3真宾语（to do/doing/that 从句）
find/ feel/ make/ think/believe/ consider + it + adj/ n + to do/doing/that 从句
仿写：请将下列句子译成英文。
⑴ 这些新技术将使得从废弃物中回收可用之物成为可能。
The new techniques ______________________ recover usable things from waste.
⑵ 因特网已经使我们用更少的时间获得更多的信息成为可能。
The Internet_________________________
__________________ in much less time.
⑶ 过去的几十年，先进的医疗技术已经使得人们比过去活得更长成为可能。
In the last decades，advances in medical technology ____________________________________________ than in the past.
have made it possible for people to live longer
has made it possible for us to get more information
will make it possible to
1) We think it important to learn English well.
2) We found it pleasant to study in this class.
3) I believe it important to understand each other.
4) He made it a rule to get up early and study.
5) I feel it your duty to achieve this study goal.
6) I consider it a kind of happiness to teach you.
We consider it our duty to support good leaders.
2) more 放在数词或any, some, no, a few, a little, many, much 等后面，意为“再（ 还）… ； 额外的 ”。 another 也有此意， 但只放在数词和few 之前。
I’ll be here for a few more weeks / another ___________
There are another two weeks / ________ weeks to go till he leaves.
I have no ________ money to offer.
May I have a little ______ salad ?
我们还需要三张椅子。_____________________________
few weeks
two more
more
more
We need three more/another three chairs.
4.Using his hybrid rice farmers are producing harvests twice as large as before.(L19，P10)用他的杂交水稻种子，农民们种出比以前多一倍的粮食。
句型：倍数词+as + 原级 +as ... 是……的多少倍
说明：英语中常用的倍数表达法还有：
⑴ 倍数 + 形容词/副词的比较级 + than...
⑵ 倍数 + the +名词(length，width，height)+ of...
仿写：请用三种表达方式翻译下列句子。
这条街道是那条街道的三倍长。
⑴ This street is________________that one.
⑵ This street is_________________that one.
⑶ This street is________________ that one.
twice longer than
three times as long as
three times the length of
5. Dr Yuan Longping grows what is called super hybrid rice. (Page 10)
袁隆平博士种植的是被称为“超级杂交水稻”的稻种。
句型分析：
该句为复合句，what引导宾语从句,且在从句中作主语。
what引导的名词性从句相当于名词的作用，可作主语、宾语,表语, 且what在从句中可用作主语、宾语或表语。
The question is what he wants to do next.
问题是下一步他想做什么。（表语从句；宾语）
What you need is patience.
你需要的是耐心。（主语从句；宾语）
Tell me what you would like to drink.
告诉我你想喝什么。（宾语从句；宾语）
[即境活用]
1). We now live in__________________(所谓的) the Information Age. (call)
2). The outcome of the incident is ________________ (所谓的) “There is no story without coincidences.” (call)
what is called
what is called
6. Since then, finding ways to grow more rice has been his goal. finding …在句子当中作主语
[考点] 动词-ing短语在句中作主语。
[考例] Eugene’s never willing to alter any of his opinions. It’s no use ___ with him.
A. to argue B. arguing
C. argued D. having argued
[点拨] It’s no use doing sth.做某事没用。其中 it 为形式主语，动词-ing 短语为真正的主语。
Collecting information is very important to businessmen.
Learning a foreign language is very useful to me.
7. He enjoys listening to violin music, playing mah-jong, swimming and reading.
[考点] 动词-ing短语作宾语。
[考例1] —There is a story here in the paper about a 110-year-old man.
—My goodness! I can’t imagine ____ that old.
A. to be B. to have been C. being D. having been
[点拨] imagine doing sth. 想象做某事。imagine后面接动词-ing形式作宾语，也可接名词、代词或从句，但不接动词不定式。
[考例2] The parents suggested ______ in the hotel room but their kids were anxious to camp out during the trip.
A. sleep B. to sleep
C. sleeping D. having slept
8.It seems a strange name since all crops are organic no matter how they are produced. (L1，P13)这个名字看起来很奇怪，因为不管怎样种植，农作物都是有机的。
句型：no matter wh...不管/不论……
仿写：请将下列句子译成英文。
⑴ 不管做什么事，你都必须非常细心。
_____________________,you must be very careful.
⑵ 不论你选择哪一个，你都会满意的。
__________________________,you will be satisfied.
⑶ 不管你说什么，我都喜欢听。
______________________,I like to listen.
No matter what you do
No matter which you choose
No matter what you say
9. What do you think would happen if tomorrow
there was suddenly no rice to eat？
如果明天突然没有米吃了，你认为将会发生什么？
句型公式：特殊疑问词＋do you think＋陈述语序
(1)do you think/believe/suppose/imagine/suggest/expect等可用作插入语，要放在特殊疑问词之后。其后用陈述语序，其后不加that。
(2)do you suggest之后要用should＋动词原形，should可以省略。
翻译句子①为什么你认为他是成功的？
②你认为他们何时会给出答复？
③你建议他们应该怎样解决这个问题？
Why do you think he is successful?
When do you think they will give an answer?
How do you suggest they solve the problem?
10．Recently，however，scientists have been finding that long term use of these fertilizers can cause damage to the land and, even more dangerous, to people's health.
然而，最近科学家发现长期使用这些肥料会造成土地受损，甚至更危险的是，会对人们的健康造成危害。
解读：现在完成进行时。
仿写：——你们找到昨天在山中失踪的夫妇了吗？
——没有，但是自从那以后，我们一直在尽力和他们取得联系。
－Did you find the missing couple in the mountain yesterday?
－No，but we have ________ to get in touch with them ever since.
been trying
11.It happened that this was a new species which I had been growing throughout the summer.碰巧这棵花是我整个夏天一直在栽培的新品种。
It happens/happened ＋that?clause碰巧，happen作“碰巧”讲时，主语常常用sb.或用it作形式主语。
①sb.happen to do sth.碰巧做……(不用于进行时态)
②sb.happen to be doing碰巧正在做……
③sb.happen to have done碰巧做过……
④sth.happen to sb./sth.
某人/物出……事了，发生了……情况
⑤There happens to be...碰巧有……
I happened to know about him.
我碰巧知道他的情况。
An accident happened to him.
他遇到了一起事故。
温馨提示：
①某人发生了某种情况用sth.happen to sb.，不用人作主语，用事情作主语。
②人作主语时，表示“碰巧”用sb.happen to do sth.“某人碰巧干……”。
完成句子
① (碰巧)I was awake at the time.
② (他发生了一起事故)months ago.
It happened that
An accident happened to him
如果这样，你做什么来种植它们？
2．Crops such as peas or soybeans put important
minerals back into the soil， making it ready for crops such as wheat or corn that need rich and fertile soil.
像豌豆和大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于种植要求土壤肥沃的农作物比如玉米和小麦。
3．He would much rather keep time for his hobbies.
他宁愿把时间花在自己的爱好上。
4.Using his hybrid rice farmers are producing harvests twice as large as before.
使用这种杂交水稻，农民们现在的收成是原来的两倍了。
5.This special strain of rice make it possible to produce one?third more of the crop in the same fields.
这种特殊的水稻使得在同一块农田里多生产三分之一的庄稼成为了可能 。
6.Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields.
袁隆平博士不用扩大土地面积而寻找到一条增长稻米产量的方法。
7．Born into a poor farmer's family in 1931，Dr Yuan graduated from Southwest Agriculture College in 1953.
袁隆平博士1931年出生在一个贫穷的农民家庭，1953年毕业于西南农业大学。
8.Dr Yuan Longping grows what is called super hybrid rice.
袁隆平博士种植的是被称为“超级杂交水稻”的稻种。
9．Thanks to his research，the UN has more tools in the battle to rid the world of hunger.
10. What do you think would happen if tomorrow there was suddenly no rice to eat？
如果明天突然没有米吃了，你认为将会发生什么？
1. If so...如果这样……,
(教材原句)If so，what did you do to grow them？
如果这样的话，你做了些什么来种植这些植物？
联想拓展
①if so意为“如果是这样的话”，是if引导的条件状语从句的省略形式，可以用来代替整个从句，省略前面出现过的主语和动词，表示肯定意义；如果表示否定意义，则用if not。
②由if，when构成的此类省略形式还有：
if necessary 如果有必要的话if any 如果有的话
if possible 如果可能的话
when necessary 当必要时
when possible 当可能时
句型学与练
完成句子
④下周你哪一个晚上有空，如果有空，我们去跳舞吧。
Have you got a free evening next week？__ __，let's go dancing.
⑤如果可能的话，我想要在最高层的房间。
____ ______，I want a room on the highest floor.
(1)有人感到冷吗？如果没有的话，我们把窗户打开吧。
Is anybody feeling cold? If not, let us open the windows.
(2)如果有的话指出句中的错误。
Point out the mistakes in the sentences, if any.
(3)如果必要的话，我将亲自去那儿一趟。
If necessary, I will go there myself.
If so
If possible
2. He would much rather keep time for his hobbies.
他宁愿把时间花在自己的爱好上。
联想拓展
1)would rather do sth.＝prefer to do sth.宁愿(可)做某事
would rather (not) do sth.宁愿(不)做某事
2)would rather do...than do...
＝would do...rather than do...＝rather than do...would...
＝prefer to do...rather than do... prefer sth 更喜欢某物
宁愿做……也不愿做；与其做……倒不如做……
3)would rather＋从句(从句使用虚拟语气)
would rather (that) sb.did sth.宁愿某人做某事(用一般过去时表示与现在或将来事实相反)
would rather (that) sb.had done sth.宁愿某人做过某事(过去完成时表示与过去的情况相反)
4)would rather have done本来想做……而未实现
I would rather that you hadn't missed the exhibition.
我真希望你没错过展览会。(事实上已错过)
—Do you mind if I smoke？
你介意我抽烟吗？
—Well，I'd rather (that) you didn't.
嗯，最好别抽。
Rather than ________ on a crowded bus，he always prefers ________ a bicycle.
A．ride；ride B．riding；ride
C．ride；to ride D．to ride；riding
If you let challenges stimulate ______ annoy you，much more can be accomplished than you thought possible.
A．rather than B．other than
C．less than D．more than
一句多译
我宁愿步行也不坐出租车去那儿。
① .
② .
③ .
I would rather walk there than take a taxi.
I would walk there rather than take a taxi.
I prefer to walk there rather than take a taxi.
3.This special strain of rice makes it possible to
produce one-third more of the crop in the same
fields.(L3，P10)这种特殊的稻种使得同样的田地多收获三分之一的产量。
句型：make it possible(for sb.)to do使(某人)做某事成为可能
巧记法：6123记忆法 6动词1 it, 2宾补（形/名）3真宾语（to do/doing/that 从句）
find/ feel/ make/ think/believe/ consider + it + adj/ n + to do/doing/that 从句
仿写：请将下列句子译成英文。
⑴ 这些新技术将使得从废弃物中回收可用之物成为可能。
The new techniques ______________________ recover usable things from waste.
⑵ 因特网已经使我们用更少的时间获得更多的信息成为可能。
The Internet_________________________
__________________ in much less time.
⑶ 过去的几十年，先进的医疗技术已经使得人们比过去活得更长成为可能。
In the last decades，advances in medical technology ____________________________________________ than in the past.
have made it possible for people to live longer
has made it possible for us to get more information
will make it possible to
1) We think it important to learn English well.
2) We found it pleasant to study in this class.
3) I believe it important to understand each other.
4) He made it a rule to get up early and study.
5) I feel it your duty to achieve this study goal.
6) I consider it a kind of happiness to teach you.
We consider it our duty to support good leaders.
2) more 放在数词或any, some, no, a few, a little, many, much 等后面，意为“再（ 还）… ； 额外的 ”。 another 也有此意， 但只放在数词和few 之前。
I’ll be here for a few more weeks / another ___________
There are another two weeks / ________ weeks to go till he leaves.
I have no ________ money to offer.
May I have a little ______ salad ?
我们还需要三张椅子。_____________________________
few weeks
two more
more
more
We need three more/another three chairs.
4.Using his hybrid rice farmers are producing harvests twice as large as before.(L19，P10)用他的杂交水稻种子，农民们种出比以前多一倍的粮食。
句型：倍数词+as + 原级 +as ... 是……的多少倍
说明：英语中常用的倍数表达法还有：
⑴ 倍数 + 形容词/副词的比较级 + than...
⑵ 倍数 + the +名词(length，width，height)+ of...
仿写：请用三种表达方式翻译下列句子。
这条街道是那条街道的三倍长。
⑴ This street is________________that one.
⑵ This street is_________________that one.
⑶ This street is________________ that one.
twice longer than
three times as long as
three times the length of
5. Dr Yuan Longping grows what is called super hybrid rice. (Page 10)
袁隆平博士种植的是被称为“超级杂交水稻”的稻种。
句型分析：
该句为复合句，what引导宾语从句,且在从句中作主语。
what引导的名词性从句相当于名词的作用，可作主语、宾语,表语, 且what在从句中可用作主语、宾语或表语。
The question is what he wants to do next.
问题是下一步他想做什么。（表语从句；宾语）
What you need is patience.
你需要的是耐心。（主语从句；宾语）
Tell me what you would like to drink.
告诉我你想喝什么。（宾语从句；宾语）
[即境活用]
1). We now live in__________________(所谓的) the Information Age. (call)
2). The outcome of the incident is ________________ (所谓的) “There is no story without coincidences.” (call)
what is called
what is called
6. Since then, finding ways to grow more rice has been his goal. finding …在句子当中作主语
[考点] 动词-ing短语在句中作主语。
[考例] Eugene’s never willing to alter any of his opinions. It’s no use ___ with him.
A. to argue B. arguing
C. argued D. having argued
[点拨] It’s no use doing sth.做某事没用。其中 it 为形式主语，动词-ing 短语为真正的主语。
Collecting information is very important to businessmen.
Learning a foreign language is very useful to me.
7. He enjoys listening to violin music, playing mah-jong, swimming and reading.
[考点] 动词-ing短语作宾语。
[考例1] —There is a story here in the paper about a 110-year-old man.
—My goodness! I can’t imagine ____ that old.
A. to be B. to have been C. being D. having been
[点拨] imagine doing sth. 想象做某事。imagine后面接动词-ing形式作宾语，也可接名词、代词或从句，但不接动词不定式。
[考例2] The parents suggested ______ in the hotel room but their kids were anxious to camp out during the trip.
A. sleep B. to sleep
C. sleeping D. having slept
8.It seems a strange name since all crops are organic no matter how they are produced. (L1，P13)这个名字看起来很奇怪，因为不管怎样种植，农作物都是有机的。
句型：no matter wh...不管/不论……
仿写：请将下列句子译成英文。
⑴ 不管做什么事，你都必须非常细心。
_____________________,you must be very careful.
⑵ 不论你选择哪一个，你都会满意的。
__________________________,you will be satisfied.
⑶ 不管你说什么，我都喜欢听。
______________________,I like to listen.
No matter what you do
No matter which you choose
No matter what you say
9. What do you think would happen if tomorrow
there was suddenly no rice to eat？
如果明天突然没有米吃了，你认为将会发生什么？
句型公式：特殊疑问词＋do you think＋陈述语序
(1)do you think/believe/suppose/imagine/suggest/expect等可用作插入语，要放在特殊疑问词之后。其后用陈述语序，其后不加that。
(2)do you suggest之后要用should＋动词原形，should可以省略。
翻译句子①为什么你认为他是成功的？
②你认为他们何时会给出答复？
③你建议他们应该怎样解决这个问题？
Why do you think he is successful?
When do you think they will give an answer?
How do you suggest they solve the problem?
10．Recently，however，scientists have been finding that long term use of these fertilizers can cause damage to the land and, even more dangerous, to people's health.
然而，最近科学家发现长期使用这些肥料会造成土地受损，甚至更危险的是，会对人们的健康造成危害。
解读：现在完成进行时。
仿写：——你们找到昨天在山中失踪的夫妇了吗？
——没有，但是自从那以后，我们一直在尽力和他们取得联系。
－Did you find the missing couple in the mountain yesterday?
－No，but we have ________ to get in touch with them ever since.
been trying
11.It happened that this was a new species which I had been growing throughout the summer.碰巧这棵花是我整个夏天一直在栽培的新品种。
It happens/happened ＋that?clause碰巧，happen作“碰巧”讲时，主语常常用sb.或用it作形式主语。
①sb.happen to do sth.碰巧做……(不用于进行时态)
②sb.happen to be doing碰巧正在做……
③sb.happen to have done碰巧做过……
④sth.happen to sb./sth.
某人/物出……事了，发生了……情况
⑤There happens to be...碰巧有……
I happened to know about him.
我碰巧知道他的情况。
An accident happened to him.
他遇到了一起事故。
温馨提示：
①某人发生了某种情况用sth.happen to sb.，不用人作主语，用事情作主语。
②人作主语时，表示“碰巧”用sb.happen to do sth.“某人碰巧干……”。
完成句子
① (碰巧)I was awake at the time.
② (他发生了一起事故)months ago.
It happened that
An accident happened to him
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