人教版（2019）选择性必修 第三册Unit 2 Healthy Lifestyle Discover useful structures课件(共18张PPT)
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| 名称 | 人教版（2019）选择性必修 第三册Unit 2 Healthy Lifestyle Discover useful structures课件(共18张PPT) |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-03-06 08:29:58 | ||
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(共18张PPT)
人教版 选择性必修三
Discover Useful Structures
The infinitive of the verb used as the subject
Unit 2 Healthy Lifestyle
1. To change bad habits is never easy.
2. It took the surgeon three hours to finish my mother's lung surgery.
3. To join the People's Liberation Army, it is required for men to shave off their beards.
4. It was not polite to disturb your neighbours with loud music last night.
语法感知
n. 外科医生
n. 外科手术
n. 解放军
剃掉胡须
Look at the following sentences and pay attention to the italicized infinitives. Find more infinitives in the reading passage, and tell their meanings and functions.
5. To prevent harmful habits like these from dominating a teenager's life is essential.
6. It can be easy for some of them to form bad habits.
7. After all, it is not easy to break bad habits.
总结：
1. 以上句子中动词不定式都是作 。
2. 句(2)(3)(4)(6)(7)中it作 ，真正的主语是后面的 。
More infinitives in the reading passage：
主语
形式主语
动词不定式
不定式作主语基本用法：
一. 动词不定式作主语，位于句首，谓语动词用单数。
1. To know yourself is difficult.
了解自己是很难的。
2. To love and to be loved is the greatest happiness one can get.
爱与被爱是一个人能获得的最大幸福。
3. To look after these naughty boys is really difficult.
照看这些淘气的男孩真的很难。
4. To save money now seems impossible.
现在存钱好像不可能。
一、单一概念的动词不定式作主语时，谓语动词用单数。
二. 为了避免头重脚轻，常用it作形式主语放在句首，作主语的不定式常置于句末。
1. It's our duty to take care of the old.
照顾老人是我们的责任。
2. It took me two months to finish the work.
我花了两个月时间来完成这项工作。
3. It is against my principles to do such a thing.
做这样的事违背我的原则。
4. It is difficult to solve the problem.
解决这个问题很难。
5. It was hard him to live on his small income.
依靠他那点工资维持生活很难。
6. It was careless you to leave your umbrella on the train.
你真粗心，把伞忘在火车上。
在 It is+adj.+for sb to do...句型中，这类形容词常表示动作的特征， 比如：easy ,difficult, comfortable, pleasant, dangerous， tiresome, interesting , heavy等。
在 It is+adj.+of sb to do...句型中，这类形容词常表示人的性格、品质，如good，kind，nice，foolish，polite，considerate，careless等。
for
of
注意：
三. 疑问词how, what, when, where, which连用构成不定式短语做主语。
1. Where to hold the meeting is still unknown.
哪里开会还未知。
2. How to solve the problem has not been decided yet.
如何解决这个问题还未决定。
3. How to prevent them from swimming in this river is a problem.
怎样阻止他们在这条河里游泳是一个问题。
4. What to do and how to do it are your own business.
去做什么以及怎样去做，是你自己的事。
四. 不定式和动名词作主语的区别。
1. 不定式做主语表示具体的某次动作, 特别是指将来的动作；动名词做主语表示比较经常性的、一般性动作。
1. To teach you the uses of the infinitive is my job today. (表具体行为)
教你们不定式的用法是我今天的工作。
2. Teaching is my job. (经常性行为)
教学是我的工作。
2. 如果主语用不定式，表语和宾语也用不定式；主语用动名词，表语和宾语也用动名词，这在英语中称为对称性。
1. To see is to believe.＝Seeing is believing. 眼见为实。
2. It is better to stay home than to go out. 待在家里比出去要好。
3. 在It is + no use/no good/useless/fun/interesting/foolish/a waste of time/ a pleasure. . . 句型中常用动名词形式作真正的主语。
1. It is no use crying over the split milk. 覆水难收。
2. It is a waste of time waiting here doing nothing.
无所事事地等待是浪费时间。
3. It is no good taking this medicine.
服用这种药没有用。
注意：如果该句型中用了for引出不定式的逻辑主语，就只能用不定式。
It is no good for us to do that exercise.
我们做那种练习没有好处。
巩 固 练 习
02
1. _____________(ignore) this would be a mistake.
2. How rude it was of the boy ___________(jump) the queue!
3. __________(do) morning exercises is good for your health.
4. To improve people's lives and to speed up socialism construction
________(be)two important tasks today.
5. He told us whether ________(have) a picnic was still under discussion.
6. It is my ambition __________(make)sure that the disabled people have
access to all public buildings.
7. It is not difficult __________(grasp) a foreign language if you spend
time and effort on it.
8. It is good manners for you __________(give) your seat to the old.
9. It is no use ________(try) to get back the lost time.
10. What a pity it is for you ________________(miss) such a good film.
Ⅰ. Fill the blanks with the right form of the given words.
To ignore
to jump
Doing
are
to have
to make
to grasp
to give
trying
to have missed
plete the sentences.
1. _____________________________in ten months was a great achievement.
10个月内就盖成那座楼是一个了不起的成就。
2. It is not very good for you __________________________.
抽这么多烟对你(身体)很不好。
3. _____________________ is to be respected.
尊重别人就是尊重自己。
4. It is not an easy thing ________________________________.
精通一种语言是不容易的。
5. It made us very angry ________________________________.
听他那样谈话我们非常气愤。
To complete that building
to smoke so much
To respect others
to master a language
to hear him talk like that
6. ________________with this situation reflects one's ability.
如何应对这种状况反映出一个人的能力。
7. It feels good ______________________for a while.
出来在这里待一会儿是挺舒服的。
8. It's necessary ___________________________when you do not use it.
当你不用车的时候, 锁车是有必要的。
9. It only took (us) a year ________________________________.
完成这项工程只花了(我们)一年时间。
10. It's kind _____________________so much of us.
你为我们想得那么多, 真是太好了。
How to deal
to be out here
for you to lock the car
to complete the project
of you to think
III. Join the words to make full sentences.(P17)
1. important / avoid/ passive cigarette smoking
It is important to avoid passive cigarette smoking.
2. will take / nutrition specialist / a balanced diet menu / make / an hour /for you
_______________________________________________________________
3. useful / turn to / fitness consultant / for advice
_______________________________________________________________
4. illegal / dangerous / take drugs
_______________________________________________________________
5. harmful / skip breakfast / often
_______________________________________________________________
It will take nutrition specialist an hour to make a balanced diet menu for you.
It is useful to turn to fitness consultant for advice.
It is illegal and dangerous to take drugs.
It is harmful to often skip breakfast.
plete the conversations with the correct forms of the
phrases in the box.
1. A: Hello, doctor. I want to lose weight, but I just can 't seem to do it. What can you do to help me
B : Well, first, it's necessary to ______________ what you eat. Cut out all fatty food and sugary drinks, and eat more fruit and vegetables.
2.A: I really need to _____________a way to exercise more. I could use a fitness app, but my phone's full.
B: So delete a few files. I'm sure the app doesn't take up much space.
begin with be in control of make a choice decide on
make up one’s mind
be in control of
decide on
3 A: Before exercising, always do a few warm-ups to___________________.
B:I know. But then I always feel too tired to continue!
4. A: Should I go for the pizza or the fried chicken I hate _________________ like these. You know what —I'm going to eat both!
B: Wow！l Don't eat too much junk food-you'll get fat. I've actually ________________ to go on a diet, so I'll just stick to the fruit salad.
begin with
to make a choice
made up my mind
2. 完成课时作业（六）
Homework:
1. 完成优化探究P42、43页
Thanks
人教版 选择性必修三
Discover Useful Structures
The infinitive of the verb used as the subject
Unit 2 Healthy Lifestyle
1. To change bad habits is never easy.
2. It took the surgeon three hours to finish my mother's lung surgery.
3. To join the People's Liberation Army, it is required for men to shave off their beards.
4. It was not polite to disturb your neighbours with loud music last night.
语法感知
n. 外科医生
n. 外科手术
n. 解放军
剃掉胡须
Look at the following sentences and pay attention to the italicized infinitives. Find more infinitives in the reading passage, and tell their meanings and functions.
5. To prevent harmful habits like these from dominating a teenager's life is essential.
6. It can be easy for some of them to form bad habits.
7. After all, it is not easy to break bad habits.
总结：
1. 以上句子中动词不定式都是作 。
2. 句(2)(3)(4)(6)(7)中it作 ，真正的主语是后面的 。
More infinitives in the reading passage：
主语
形式主语
动词不定式
不定式作主语基本用法：
一. 动词不定式作主语，位于句首，谓语动词用单数。
1. To know yourself is difficult.
了解自己是很难的。
2. To love and to be loved is the greatest happiness one can get.
爱与被爱是一个人能获得的最大幸福。
3. To look after these naughty boys is really difficult.
照看这些淘气的男孩真的很难。
4. To save money now seems impossible.
现在存钱好像不可能。
一、单一概念的动词不定式作主语时，谓语动词用单数。
二. 为了避免头重脚轻，常用it作形式主语放在句首，作主语的不定式常置于句末。
1. It's our duty to take care of the old.
照顾老人是我们的责任。
2. It took me two months to finish the work.
我花了两个月时间来完成这项工作。
3. It is against my principles to do such a thing.
做这样的事违背我的原则。
4. It is difficult to solve the problem.
解决这个问题很难。
5. It was hard him to live on his small income.
依靠他那点工资维持生活很难。
6. It was careless you to leave your umbrella on the train.
你真粗心，把伞忘在火车上。
在 It is+adj.+for sb to do...句型中，这类形容词常表示动作的特征， 比如：easy ,difficult, comfortable, pleasant, dangerous， tiresome, interesting , heavy等。
在 It is+adj.+of sb to do...句型中，这类形容词常表示人的性格、品质，如good，kind，nice，foolish，polite，considerate，careless等。
for
of
注意：
三. 疑问词how, what, when, where, which连用构成不定式短语做主语。
1. Where to hold the meeting is still unknown.
哪里开会还未知。
2. How to solve the problem has not been decided yet.
如何解决这个问题还未决定。
3. How to prevent them from swimming in this river is a problem.
怎样阻止他们在这条河里游泳是一个问题。
4. What to do and how to do it are your own business.
去做什么以及怎样去做，是你自己的事。
四. 不定式和动名词作主语的区别。
1. 不定式做主语表示具体的某次动作, 特别是指将来的动作；动名词做主语表示比较经常性的、一般性动作。
1. To teach you the uses of the infinitive is my job today. (表具体行为)
教你们不定式的用法是我今天的工作。
2. Teaching is my job. (经常性行为)
教学是我的工作。
2. 如果主语用不定式，表语和宾语也用不定式；主语用动名词，表语和宾语也用动名词，这在英语中称为对称性。
1. To see is to believe.＝Seeing is believing. 眼见为实。
2. It is better to stay home than to go out. 待在家里比出去要好。
3. 在It is + no use/no good/useless/fun/interesting/foolish/a waste of time/ a pleasure. . . 句型中常用动名词形式作真正的主语。
1. It is no use crying over the split milk. 覆水难收。
2. It is a waste of time waiting here doing nothing.
无所事事地等待是浪费时间。
3. It is no good taking this medicine.
服用这种药没有用。
注意：如果该句型中用了for引出不定式的逻辑主语，就只能用不定式。
It is no good for us to do that exercise.
我们做那种练习没有好处。
巩 固 练 习
02
1. _____________(ignore) this would be a mistake.
2. How rude it was of the boy ___________(jump) the queue!
3. __________(do) morning exercises is good for your health.
4. To improve people's lives and to speed up socialism construction
________(be)two important tasks today.
5. He told us whether ________(have) a picnic was still under discussion.
6. It is my ambition __________(make)sure that the disabled people have
access to all public buildings.
7. It is not difficult __________(grasp) a foreign language if you spend
time and effort on it.
8. It is good manners for you __________(give) your seat to the old.
9. It is no use ________(try) to get back the lost time.
10. What a pity it is for you ________________(miss) such a good film.
Ⅰ. Fill the blanks with the right form of the given words.
To ignore
to jump
Doing
are
to have
to make
to grasp
to give
trying
to have missed
plete the sentences.
1. _____________________________in ten months was a great achievement.
10个月内就盖成那座楼是一个了不起的成就。
2. It is not very good for you __________________________.
抽这么多烟对你(身体)很不好。
3. _____________________ is to be respected.
尊重别人就是尊重自己。
4. It is not an easy thing ________________________________.
精通一种语言是不容易的。
5. It made us very angry ________________________________.
听他那样谈话我们非常气愤。
To complete that building
to smoke so much
To respect others
to master a language
to hear him talk like that
6. ________________with this situation reflects one's ability.
如何应对这种状况反映出一个人的能力。
7. It feels good ______________________for a while.
出来在这里待一会儿是挺舒服的。
8. It's necessary ___________________________when you do not use it.
当你不用车的时候, 锁车是有必要的。
9. It only took (us) a year ________________________________.
完成这项工程只花了(我们)一年时间。
10. It's kind _____________________so much of us.
你为我们想得那么多, 真是太好了。
How to deal
to be out here
for you to lock the car
to complete the project
of you to think
III. Join the words to make full sentences.(P17)
1. important / avoid/ passive cigarette smoking
It is important to avoid passive cigarette smoking.
2. will take / nutrition specialist / a balanced diet menu / make / an hour /for you
_______________________________________________________________
3. useful / turn to / fitness consultant / for advice
_______________________________________________________________
4. illegal / dangerous / take drugs
_______________________________________________________________
5. harmful / skip breakfast / often
_______________________________________________________________
It will take nutrition specialist an hour to make a balanced diet menu for you.
It is useful to turn to fitness consultant for advice.
It is illegal and dangerous to take drugs.
It is harmful to often skip breakfast.
plete the conversations with the correct forms of the
phrases in the box.
1. A: Hello, doctor. I want to lose weight, but I just can 't seem to do it. What can you do to help me
B : Well, first, it's necessary to ______________ what you eat. Cut out all fatty food and sugary drinks, and eat more fruit and vegetables.
2.A: I really need to _____________a way to exercise more. I could use a fitness app, but my phone's full.
B: So delete a few files. I'm sure the app doesn't take up much space.
begin with be in control of make a choice decide on
make up one’s mind
be in control of
decide on
3 A: Before exercising, always do a few warm-ups to___________________.
B:I know. But then I always feel too tired to continue!
4. A: Should I go for the pizza or the fried chicken I hate _________________ like these. You know what —I'm going to eat both!
B: Wow！l Don't eat too much junk food-you'll get fat. I've actually ________________ to go on a diet, so I'll just stick to the fruit salad.
begin with
to make a choice
made up my mind
2. 完成课时作业（六）
Homework:
1. 完成优化探究P42、43页
Thanks