高中英语牛津译林版（2019）选择性必修第一册Unit 1 Food matters-Grammar and usage课件（17张PPT）

(共17张PPT)
Unit 1
Food matters
Grammar and usage
Discuss and share:
What ‘s your favourite food？
Would you like to describe your experience as a real foodie
As a real foodie, I enjoy all kinds of foods. My dream is to try different restaurants and taste various foods.
Yesterday I invited some friends to try a great new restaurant for dinner.
We arrived at the restaurant, only to see a huge line of people waiting to get into the restaurant.
Nothing can stop our determination to have a try. We decided to wait outside.
After an hour of waiting, we were invited to go into the restaurant and take the order.
The dishes are extremely delicious. It is worthwhile to have such a long wait.
To-infinitives
Exploring the rules
Below is a blog entry about eating out and eating at home. Find the sentences that use to-infinitives as subjects.
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
Exploring the rules
Below is a blog entry about eating out and eating at home. Find the sentences that use to-infinitives as predicatives.
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
动词不定式作主语和表语
1. 动词不定式可以在句中用作主语。
To cook Chinese food is not easy.
动词不定式作句子主语时可以用形式主语it 代替，将不定式置于句末。
It is difficult to find a true friend.
动词不定式前可以加上for 引导的短语作为不定式的逻辑主语。
It’s for you to make the final decision.
动词不定式作主语和表语
2. 动词不定式可以在句中用作表语。
His aim was to cheer me up.
3. 动词不定式作主语和表语时，可以有被动形式。
(1) It was a great honour to be invited here today.
(2) My dream is to be admitted to Peking University.
4. 主语和表语可以同时为动词不定式。
To see is to believe.
Practice
被邀请到你家做客真的是太荣幸了。
It is a great honour to your family.
在家做饭准备环节需要花很长时间。
It takes a long time home-cooked meals.
to be invited
to prepare for
It is + n.(a pity, a shame, an honour …) to do sth
It takes sb some time/money… to do sth
Practice
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
It is + adj.+ for/of sb to do sth
Practice
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
Applying the rules
Rewrite the following sentences, using to-infinitives.
The next dish to prepare by the cook is Kung Pao Chicken.
To prepare home-cooked meals is easy and enjoyable.
Her dream is to open a restaurant some day.
We will put the potatoes in the pot first to cook them quickly.
I consider the Soup of the Day to be the best option on the menu.
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
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 …
Presenting
Dear Tom,
I am writing to thank you for taking me to Sky Buffet. It was so kind of you to invite me and book a table by the window. It was wonderful to see the city scenery and watch the beautiful sunset. I have always wanted to give Sky Buffet a try, and it certainly lived up to my expectations! Do you have any arrangements next weekend My plan is to invite you over to my home for dinner next Saturday. The view won’t be as good as at Sky Buffet but I would like to cook you something special to thank you.
Yours,
Mary