牛津译林版（2019）选择性必修第一册Unit 1 Food matters Welcome to the unit课件（共31张PPT）

(共31张PPT)
Unit 1
FOOD MATTERS
Grammar and usage
① Can you find the to-infinitives
② What is their function in the sentence
Read the blog and answer the questions.
App’s functions
(5) ________
In the last few weeks, the author engaged in home cooking.
Benefits
In the past, the author liked to eat (1) _______________.
Why
The author is eager to try new restaurants.
To eat out was also a social activity to (2) _______________________ with friends.
Then the author came across a cooking app last month.
There are lots of (3) _______ to choose from.
It offers (4) _________________ for users to follow step by step.
to cook exactly the author wants
(6) _________
at the restaurant
enhance the relationship
recipes
detailed instructions
cheaper
healthier
Complete the following mind map.
Complete the table of Part A.
To-infinitives as subjects
To-infinitives as predicatives
To eat out was also a social activity, allowing me to enhance the relationship with my friends.
When I picked a popular recipe and gave it a try, I discovered that it was not that difficult to make a simple and tasty dish.
Not that long ago, my first thought at mealtimes was to eat at a restaurant.
My plan is to invite my friends over at the weekend to show them my new-found skills.
When the to-infinitive is used as a subject, we usually use the preparatory subject (1) at the beginning of the sentence.
The to-infinitive can also be used as a predicative. It usually comes after the verb (2) .
it
be
Working out the rules
(1) To eat out was also a social activity, allowing me to enhance
the relationship with my friends.
(2) There are a variety of recipes on the app to choose from.
(3) My plan is to invite my friends over at the weekend to show
them my new-found skills.
object complement
attributive
adverbial of purpose
Work in pairs.
Identify what to-infinitives function as in the following sentences from the blog.
To-infinitives as subjects and predicatives
——不定式作主语和表语
很多情况下，作主语的动词不定式都可以用动名词替代，但表示某些具体情况，或表示较强烈的对比，或在某些固定说法中时，通常不用动名词替代。
To err is human. 金无足赤，人无完人。/人非圣贤，孰能无过。
To know everything is to know nothing. 样样皆通，样样稀松
1. 动词不定式作主语时，一般表示具体的或一次性的动作。作主语的不定式有时态和语态的变化，且谓语动词通常用单数。
To finish this job in one day is impossible.
要在一天之内完成这项工作是不可能的。（表示具体的情况）
2. 若不定式太长，则往往用 it 代替不定式作形式主语，不定式移至谓语之后，以使句子结构平衡。
常见句型有以下4种：
(1) It +be+形容词+(for/of sb.) to do sth.
(2) It+be+名词+ to do sth.
(3) It takes (sb.) some time to do sth.
(4) It made sb. + adj. + to do sth.
It is very interesting to play in the snow in winter. 冬天在雪地里玩是很有趣的。
It is a great honour to hear you speak so highly of me. 听到你这么夸奖是我莫大的荣幸。
It takes ten years to grow trees, but a hundred years to rear people. 十年树木，百年树人。
It made me relaxed to know that I have passed the exam. 了解到我通过了考试，我感到很轻松。
不定式作主语
不定式作表语
1.动词不定式作表语，可以说明主语的具体内容，还可以表示目的、结果、安排、命令、决定、劝告、意愿等，其主语通常为task，aim，purpose，wish，dream，duty，plan，hope，job，problem等名词，或是what引导的名词性从句。不定式作表语时，主语和表语有时可以交换位置，其意思不变。
I've had many dreams since I was a kid. Now my dream is to open a cafe.
我从小就有很多梦想。现在我的梦想是开一家咖啡馆。
The important thing in life is to have a great aim, and the determination to attain it.
人生重要的事是有一个伟大的目标，以及实现它的决心。
What I would suggest is to start work at once.
我建议马上开始工作。
不定式作表语
2. 动词不定式作表语省略to的情况
动词不定式作表语时，一般情况下不定式符号to不能省略，但当主语部分含有从句且从句谓语部分有实义动词do的某种形式时，作表语的不定式符号to可以省略。
All we need to do is (to) live each day with passion.
我们需要做的就是充满激情地过好每一天。
Don't worry. What you need to do is (to) have a good sleep.
别担心，你需要做的就是好好睡一觉。
(1) 当主语部分有实义动词 do或do的某种形式时,动词不定式做表语时可以省略 to。
All I could do now is (to) keep silent.
我现在所能做的就是保持沉默。
(2) 某些动词的不定式与 be 动词连用时常用主动形式表示被动意义,如be to let(出租),be to blame(应负责任)等。
The house is to let.
这所房子要出租,
Who is to blame for the accident
谁应该为这起事故负责
特别注意
(3) 动词不定式和动名词做表语都是用于表示主语“是什么”,但动词不定式做表语强调的是一次性的、具体的、将要发生的动作;动名词做表语强调的是一般性的、抽象的、经常发生的动作。
The man's job is to paint the walls.
这位男士的工作是粉刷这些墙。(表示一次性的、具体的、目前要做的事情)
The man's job is painting walls.
这位男士的工作是粉刷墙。(表示经常性的日常工作)
特别注意
点击此处添加标题
to relax
to buy
to store
to recover
to judge
Exercise
1. Exercise energizes you, so it is more difficult ___________ (relax) and have a peaceful sleep when you are very excited.
2. His plan is ___________ (buy) a new computer for his son as a reward for his good behavior at school.
3. What squirrels can do is ___________ (store) all kinds of nuts before winter comes.
4. It took him a long time ___________ (recover) from a bad cold.
5. As an old saying goes, "It is not wise ___________ (judge)a book by its cover."
Rewrite the following sentences, using to-infinitives.
(1) The next dish that the cook will prepare is Kung Pao Chicken. (attributive).
(2) The preparation of home-cooked meals is easy and enjoyable. (subject)
(3) Her dream is that she will open a restaurant some day. (predicative)
The next dish to be prepared by the cook is Kung Pao Chicken.
To prepare home-cooked meals is easy and enjoyable./
It is easy and enjoyable to prepare home-cooked meals.
Her dream is to open a restaurant some day.
B1
Rewrite the following sentences, using to-infinitives.
(4) We will put the potatoes in the pot first in order that they will be cooked quickly. (adverbial of purpose)
(5) I consider the Soup of the Day as the best option on the menu. (object complement)
The next dish to be prepared by the cook is Kung Pao Chicken.
To prepare home-cooked meals is easy and enjoyable./
It is easy and enjoyable to prepare home-cooked meals.
B1
B2
Complete the article with the correct forms of the verbs in the brackets.
As long as you are not afraid of heights, you will be impressed by Sky Buffet, the latest restaurant in the city centre.
(1) _________ (locate) at the top of Tower 88, it gives you an amazing view of the bay. Better still, its entire seating area turns slowly and it is enjoyable (2) _________ (see) the scenery outside while having your meal. Since it takes about an hour
(3) ________ (turn) the full 360 degrees, you are unlikely to get bored with the scenery. If you want to get the most wonderful views, your best bet is (4) _________ (sit) by the window an hour before sunset and watch how the sky changes colours.
Located
to see
to turn
to sit
B2
Complete the article with the correct forms of the verbs in the brackets.
The atmosphere is lively and modern, with its walls (5) ________ (paint) white and light blue. Sky Buffet serves a menu full of eye-catching Asian dishes, (6) ________ (range) from Chinese food to Japanese food. It will be a good idea
(7) ________ (invite) your family and friends over for dinner. Sky Buffet is considered by many locals (8) __________ (be) the perfect location for a special occasion.
painted
ranging
to invite
to be
Answer the following questions after reading the article.
(1) How are the to-infinitives used as in each sentence of this article
“to see” (a to-infinitive used as a subject);
“to turn” (a to-infinitive used as a subject);
“to sit” (a to-infinitive used as a predicative);
“to invite” (a to-infinitive used as a subject);
“to be” (a to-infinitive used as a subject complement).
Answer the following questions after reading the article.
(2) What makes eating there enjoyable
(3) How can you get the most wonderful views
Its entire seating area turns slowly and it’s enjoyable to see the scenery outside while having your meal.
Your best bet is to sit by the window an hour before sunset and watch how the sky changes colours.
B3
Invitation
________________________________________________
lmagine 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.
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
Invitation
_________________________________
Sample
Vocabulary
1. eager
eagerly adv.急切地;渴望地热心地
eagerness n. 渴望,热心
be eager for... 渴望得到......
be eager to do sth 渴望做某事
be eager for sb.to do sth. 渴望某人做某事
be eager that...渴望……(从句的谓语动词用“should+动词原形” should可以省略)
练习：Robert was ________ to talk about life in the Army.
eager
Vocabulary
2. allow
allow for 考虑到;估计到;把……计算在内
allow(doing)sth. 允许(做)某事
allow sb.to do sth. 允许某人做某事
be allowed to do sth 被允许做某事
练习：They don't __________ smoking here.
allow
Vocabulary
3. impress
impress sb.with sth.某物给某人留下深刻的印象
be impressed by/with...被……打动,对……印象深刻
impress sth.on/upon ones memory 某人把某事铭记在心
impress sth.on/upon sb.使某人意识到某事
impressive adj.给人深刻印象的;令人赞叹的
练习：Once you see the West Lake, you will be ________ by its beauty.
impress
Vocabulary
4. include
sth./sb. included 包含某人/某物
imneluding sb./sth 包含某人/某物
辨析：include/contain
include 着重指“被包含者只是整体的一部分”，可以详细罗列内容，也可以只列举其中一二，主语和宾语同类。
contain 着重指“内有”，主语和宾语不同类。
练习：房间里有三个箱子，包括一个红色的，里面有10 本书。
There are three boxes in the room, __________ a red one, which _________ ten books.
including
contains
When l picked a popular recipe and give it a try,l discovered that it was not that difficult to make a simple and tasty dish.
“It is/was+adj.(+for sb.)+to do sth.”句型
意为“(某人)做某事是……的”。其中It是形式主语,真正的主语是后面的动词不定式。该结构中常见的形容词有necessary, important, easy, difcult, hard, dangerous, possible, impossible 等表示事物的属性特征的词。
It's hard to predict when driverless cars will be everywhere on our roads.
很难预测无人驾驶的汽车何时会在我们的道路上无处不在。
有时在“It is/was +ad.( +for sb.)+to do sth.”句型中介词用of,而不用for,构成“It is/was +adj.( +of sb.)+ to do sth.”句型,该句型意为“(某人)做某事是……的”。此时形容词常是 kind, nice, good, clever, wrong, foolish, right, careless,polite 等表示人的性格、品质的词。
It was very stupid of you to ignore your mother's advice.
你不听母亲的劝告,真是很愚笨。
It is/was+adj.(+of sb.)+to do sth.
Exercise
Just looking at green，growing things can reduce stress，lower blood pressure，and put people into a better __________(心情).
These works have a strong __________(味道) of rural life.
The beauty of rereading lies in the idea that our __________(联系) with the work is based on our present mental register.
We can't __________(产生) enough power for the entire city.
Cattle raising people in East Africa and northern Europe have gained a mutation (突变) that helps them __________(消化) milk as adults.
mood
flavour
bond
generate
digest
Exercise
But now, with the __________(combine) of a better price point and a generally fresher product, they can stay in business.
Out comes a “soft serve” __________(cream) dessert, to be eaten right away.
The hungry man __________(greedy) grasped the bread.
He fell __________(gentle) over upon the grass and went to sleep.
You'll appear fun and funny by __________(associate).
combination
creamy
greedily
gently
association
Review the language points and complete the exercises.
Homework
See you next class!