牛津译林版（2020）选择性必修 第一册Unit 1 Food matters>Grammar and usage课件(27张ppt)

(共27张PPT)
Unit 1 Food matters
Grammar and usage
Lead in
Have you heard of the proverb:“To see one time is better than to hear a hundred times.”
Yes, and I know another one, “To see is to believe.”
根据对话并填空:
1._____ (be) kind to the enemy is _____ (be) cruel to the people.
2.What he is considering now is _____ (get) enough money to buy a car.
3.My chief purpose is _______ (point) out the difficulties of the matter.
To be
to be
to get
to point
Lead in
to-infinitives as subject.
to-infinitives as predicative
Below is a blog entry about eating out and eating at home. Find the sentences that use to-infinitives as subjects.
Exploring the rules
To-infinitives as subjects
To eat out was also a social activity, ...
..., it was not that difficult to make a simple and tasty dish.
Exploring the rules
Working out the rule
When the to-infinitive is used as a subject, we usually use the preparatory subject at the beginning of the sentence.
it
To-infinitives as subjects
Exploring the rules
你为我们做了这么多美味的菜真的是太好了。
It is nice ____ you _______ so many tasty dishes for us.
在当今社会，我们学会做饭还是很有用的。
It is useful _____ us .
to learn how to cook
for
of
to make
Practice
Below is a blog entry about eating out and eating at home. Find the sentences that use to-infinitives as predicatives.
Exploring the rules
To-infinitives as predicatives
..., my first thought at mealtimes was to eat at a restaurant.
My plan is to invite my friends over at the weekend ...
Exploring the rules
Working out the rule
The to-infinitive can also be used as a predicative. It usually comes after the verb .
be
To-infinitives as predicatives
Exploring the rules
然而，烹饪对于我来说还有点挑战性。
However, cooking seems challenging for me.
是否我能学会做几个菜，以后见分晓。
It remains ____________ if I can cook a couple of dishes.
to be
to be seen
Practice
To-infinitives
To-infinitives can be used as subjects, predicatives, objects, complements, attributives and adverbials.
Grammar
Find the to-infinitives in the following sentences and tell their functions.
1. To study abroad on my own is my dream.
2. Your task today is to clean the house.
3. She pretended not to see me when I passed by.
4. He is said to come back next week.
5. Teachers are always the first to come and the last
to leave.
6. To be admitted by a key university, we must try our
best to study hard.
the object
the subject
the attributive
the predicative
the adverbial
the subject complement
Grammar
the attributive
The to-infinitives used as subjects
Grammar
1. It is our duty to take care of the old.
2. To climb Mount Tai is my plan this year.
the subject
the subject
动词不定式作主语时，谓语动词常常用单数
如果动词不定式太长，常常用it作形式主语，
而将真正的主语——动词不定式后置。
The to-infinitives used as predicatives
Grammar
1. My goal is to enter a famous university.
2. The result remains to be seen.
the predicative
the predictive
1．表示目的。
2．表示事态发展的结果、预期的结果、不幸的命运或预言。
3．用于第一人称疑问句，表示征求意见。
4．用于被动语态，相当于can/could，should，ought to，must，具有情态意义。
5．表示“同意、安排、命令、决定、劝告、意愿、禁止”等。
6．不定式作表语，可用主动形式表示被动意义。
The to-infinitives used as objects
Grammar
1. I decided to take a taxi.
2. Remember to lock the door.
the object
the object
offer, afford, aim, appear, agree, arrange, ask, happen, bother, choose, desire, determine, expect, hope, fail, learn, manage, plan, pretend, wait, promise, refuse, want, strive ...
forget, regret, stop, try, mean, can't help, want ...
remember
forget
regret
stop
try
mean
can't help
want
to do sth 记得要做某事
doing sth 记得做过某事
to do sth 忘记要做某事
doing sth 忘记做过某事
to do sth 遗憾地做某事
doing sth 后悔做过某事
to do sth 停下来去做另一件事
doing sth 停止正在做的事
to do sth 尽力做某事
doing sth 尝试做某事
to do sth 打算做某事
doing sth 意味着做某事
to do sth 不能帮忙做某事
doing sth 情不自禁做某事
to do sth 想要做某事
doing sth 需要做某事
The to-infinitives used as complements
Grammar
1. With a lot of work to do, he can't go with us.
2. The teacher found him to be unhappy.
3. People are not allowed to smoke here.
4. He is considered to be a great leader.
the object complement
the subject complement
advise, ask, beg, tell, invite, force, get, help, encourage, order, warn, persuade, permit, remind, request, cause, command...
think, believe, suppose, feel, imagine, prove, appoint ...
The to-infinitives used as attributives
Grammar
1. I have something to tell you.
2. He said he had no plan to go there.
the attributive
the attributive
The to-infinitives used as adverbials
Grammar
1. I'm writing to invite you to my birthday party.
2. He grew up to be a handsome boy.
3. I was delighted to meet him.
purpose
result
reason
Rewrite the following sentences, using to-infinitives.
Applying the rules
1. The next dish to be prepared by the cook is Kung Pao Chicken.
2. To prepare home-cooked meals is easy and enjoyable./
It is easy and enjoyable to prepare home-cooked meals.
3. Her dream is to open a restaurant some day.
4. We will put the potatoes in the pot first (in order) to cook
them quickly.
5. I consider the Soup of the Day to be the best option on the
menu.
Answer
Complete the article with the correct forms of the verbs in the brackets.
Located
to turn
to sit
painted
ranging
to invite
to be
to see
Applying the rules
Imagine your friend has taken you out to dinner at Sky Buffet. Write a thank-you note to your friend, offering to return the favour by inviting him or her to your home for dinner next weekend. Remember to use to-infinitives. Use the expressions below to help you.
Expressions
I am writing to … I have always wanted to …
It was so kind of you to … I would like/love to …
It was wonderful to … My plan is to …
Applying the rules
I
单句语法填空
1．________(do) two things at a time is to do neither.
2．What I would suggest is ________ (start) work at once.
3．His wish is ________ (buy) a luxurious car in the near future.
4．It is stupid of you ________ (write) down everything that the teacher says.
5．It's a good habit ________ (read) books every day.
To do
to start
to buy
to write
to read
I
翻译句子
1. ______________________(为了开拓视野), I always travel.
2. She wants her son _________________________(保持他房间的整洁).
3. The little girl is happy _________________(吃冰淇淋).
4. Cindy is known _________________________________
_________________ (有餐后和她爸爸散步的习惯).
5. Sam chooses _____________________(自我放松) by listening to light music.
6. You need to seize every opportunity _________________
(展现自己).
To broaden my horizons
to keep his room tidy
to have ice cream
to have the habit of walking with her
father after dinner
to relax himself
to show yourself
Thank You！