牛津译林版英语九年级上册Unit 6 TV programme Grammar课件(共46张PPT)

(共46张PPT)
Unit 6
TV programmes
Grammar
To learn to use if and unless
Learning Objectives
1. If you are a football fan, you will not want to miss this week’s programme.
2. If you enjoy solving mysteries, you might like this film. However, if you get scared easily, do not watch it!
3. If you are an animal-lover, you may feel sad about it.
Presentation
1. __ you are a football fan, you will not want to miss this week’s programme.
2. __ you enjoy solving mysteries, you might like this film. However, __ you get scared easily, do not watch it!
3. __ you are an animal-lover, you may feel sad about it.
go
If
If
if
If
Ready
1. Diana (will go/go/goes) to Europe if she (will pass/pass/passes) the exams.
2. The graduates (will teach/teach/teaches) in the poor village if the Ministry of Education (will agree/ agree/agrees) soon.
3. If there (will be/ are/is) a car accident, they (will call/call/calls) 110 for help at once.
Exercises
Warming up
We use if to talk about the result of a possible action.
What TV programme will you watch if you finish your homework early tonight
If I finish my homework early tonight, I will watch the basketball match on TV.
if 可以用来引导条件状语从句，此时，if 通常表示“假如”。 if 引导的从句既可以放在主句之前也可以放在主句之后。当从句位于主句之前时，常用逗号与主句隔开。
Using if
当一个句子中含有if 引导的条件状语从句时，主、从句的时态有如下情形：
e.g. If it doesn’t rain, I will go for a picnic.
如果从句表示将来要发生的事情，从句通常用___________，主句用___________，
即“主将从现”原则。
一般现在时
一般将来时
If-clause
(simple present tense) Main clause
(will/may/might/…+
infinitive)
If you are a football fan, you will not want to miss this week’s
programme.
如果主句中含有will, may, can, might等情态动词时，从句通常用一般现在时。
e.g. You can go _____________.
如果你想去可以去。
if you want
If-clause
(simple present tense) Main clause
(will/may/might/…+
infinitive)
If you are an animal-lover, you may feel sad about it.
If you enjoy solving mysteries, you might like this film.
如果主句是祈使句，从句通常用一般现在时。
e.g. Please call me if he comes next
Sunday.
如果他下周日过来请打电话给我。
_________________________ if
______________________________.
如果你不完成作业就不要玩电脑游戏。
you don’t finish your homework
Don’t play computer games
如果表示的是客观事实或普遍真理，从句和主句通常都用一般现在时。
e.g. If you heat ice, it melts.
如果你加热冰，它就会融化。
【运用】
根据汉语意思完成英语句子，每空一词(含缩略形式)。
1. 如果明天我不忙，我就和你一起去购物。
If ____ ______ busy tomorrow, I ______
___ _________ with you.
2. 如果你需要帮忙，请告诉我。
Please ____ ___ if you ____ ________.
I’m not will go shopping
tell me need help
3. 如果你不认识路，可以给我打电话。
You ______ _____ me if you ______ _____
the way.
can call don’t know
What will happen if ...
Millie is thinking about herself, her friends and TV programmes. Help her choose the correct forms of the verbs in brackets to complete the sentences.
If I ____ (go, will go) to the Reading
Club this afternoon, I ______________ ( do not have, may not have) any time to watch TV.
2. If Simon_____(gets, will get) home too late, he __________ (misses, will miss) his favourite cartoon.
go
may not have
gets
will miss
3. If Amy __________(completes, will
complete) all her homework quickly,
she ___________ (watches, will watch)
the chat show.
completes
will watch
4. If Daniel ________ (takes, will take)
part in the game show, he _________
(wins, might win) a prize.
takes
might win
5. If Sandy _______(finds, will find) a
programme interesting, she
_____________ (introduces, will
introduce) it to us.
finds
will introduce
Work out the rule!
We often use the simple __________
(future, present) tense in the if-clause.
We need a _________ (comma, full stop)
after the if-clause when it is the first part
of a sentence.
comma
present
Asking about animals
Millie watched a documentary about animals. Help Millie answer her father’s questions with the help of the words in the box.
attack catch hunt live protect walk
vt./vi. 攻击，进攻
Dad: What will a bear do if it’s in danger
Millie: If a bear (1)____________, it (2)
___________ people.
Dad: What will a polar bear do if it’s
hungry
Millie: If a polar bear (3)______________, it
(4)___________ fish from the water.
n. 北极熊
is in danger
will attack
is hungry
will catch
Dad: What will elephants do if they’re thirsty
Millie: If elephants (5)_____________, they
(6)___________ until they find a river.
Dad: What will tigers do if they live in the
wild
Millie: Tigers (7)___________ for their
own food if they(8) ______________.
will walk
live in the wild
are thirsty
will hunt
Dad: What will tigers do if they have babies
Millie: Tigers (9)___________ as a family if
they (10)____________.
Dad: What will male wolves do if there’s
danger
Millie: Male wolves (11)____________ their
families if there (12)___________.
will live
have babies
will protect
is danger
adj. 雄性的
1. Unless you take more care, you’ll have an accident.
2. My baby sister never cries unless she is hungry.
3. Don’t promise anything unless you’re 100 per cent sure.
4. You’ll fail in English unless you work hard.
Presentation
unless
unless
1. ______ you take more care, you’ll have an accident.
2. My baby sister never cries ______ she is hungry.
3. Don’t promise anything _____ you’re 100 per cent sure.
4. You’ll fail in English _____ you work hard.
go
Unless
unless
Ready
unless意为“如果不……”，“除非”。
牛奶如果不冷藏，很快就会变酸。
Milk quickly turns sour unless it’s refrigerated.
Unless he comes soon, I’m going without him.
= If he doesn’t come soon, I’m going without him.
他如果不马上来，我就自己走了。
Sometimes we can use if…not to replace unless.
unless作连词，意为“如果不，除非”，在句中引导条件状语从句，相当于if ... not。与 if 一样，unless引导的条件状语从句常用一般现在时态表示将来。 unless 引导的从句既可以放在主句之前，也可以放在主句之后。当从句位于主句之前时，常用逗号与主句隔开。
e.g. He won’t come to the party unless
you invite him.
Using unless
Sometimes we can use if ... not to replace unless.
如果主句是一般将来时态，则unless 引导的从句的时态通常用一般现在时表将来。
e.g. The situation will continue unless humans
stop hunting them for their fur and bones.
→ The situation will continue if humans do
not stop hunting them for their fur and
bones.
e.g. Unless it rains tomorrow, we are
going to play football in the park.
→ If it does not rain tomorrow, we are
going to play football in the park.
The unless-clause can come first or after the main clause.
e.g. Unless you try your best, you will
not realize your dream.
You will be late unless you leave right
now.
在unless引导的条件状语从句中，主句
也可以含有情态动词或祈使句。
e.g. He cannot see clearly unless he wears
glasses.
Don’t touch the machine unless the
teacher allows you to.
【运用】
根据所讲内容将下面的句子翻译成英语。
我不会和你去看电影，除非我妈妈允许我去。
1. _____________________________________
_____________________________________
I won’t go to the movies with you, unless my mother allows me to.
2. 除非露西邀请我，否则我不会去参加她的生
日聚会。
_______________________________________
_______________________________________
_______________________________________
3. 如果明天不下雨，学生们将去野餐。
_______________________________________
_______________________________________
_______________________________________
I won’t go to Lucy’s birthday party unless she invites me. / If Lucy doesn’t invite me, I won’t go to her birthday party.
Unless it rains tomorrow, the students will have a picnic. / If it doesn’t rain tomorrow, the students will have a picnic.
A trip to a film and TV studio
Sandy has prepared some tips for a school trip to a film and TV studio. However, she tore the tips by accident. Help her put the tips back together. Match the two parts of the sentences and write the correct letters in the blanks.
a unless you take your own food with you.
b you will not need to take the minibus in
the studio.
c you will not have to take an umbrella with
you.
d unless the traffic is very heavy.
e unless you have little interest in it.
f you will travel around it with a tour guide.
Unless the weather report says it is
going to rain, ______
2 We will arrive at the studio around 9:30 a.m. _______
c you will not have to take an umbrella
with you.
d unless the traffic is very heavy.
c
d
Unless you already know the studio
very well, ______
4 You will buy your lunch at the restaurants in the studio ______
a unless you take your own food with
you.
f you will travel around it with a tour
guide.
f
a
5 Unless you are tired, ______
You will have a chance to see how a TV
programme is recorded ______
b
e
b you will not need to take the minibus in
the studio.
e unless you have little interest in it.
Work out the rule!
We use the simple _________ (future, present) tense in the unless-clause.
present
单项选择。
1. If there ________ no buying and selling
of animals, there _______ no killing in
nature.
A. is; will be B. will be; will be
C. is; is D. will be; is
Exercises
2. I’m waiting for my friend._______,
I’ll go shopping alone.
A. If she comes
B. If she won’t come
C. If she doesn’t come
3. We are going to play basketball
_______ it rains.
A. if not B. when
C. except that D. unless
4. Eat less food _______ you want to put
on weight.
A. if B. unless
C. until D. as soon as