(共25张PPT)
Unit 6
TV programmes
Period 3
Grammar
新
课
导
入
Look and say
1. If you're as busy as I am, you won't get bored.
2. However, if you get scared easily, do not watch it!
3. The situation will continue unless humans stop hunting them for their fur and bones.
Language Goal
1. 能熟悉并正确运用本课时的重点单词和短语。
2. 能掌握if引导的条件状语从句。
3. 能掌握unless引导的条件状语从句。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新知学习
课堂小结
当堂检测
学习目标
重点研讨
A Using if
We use if to talk about the result of a possible action. We make sentences with if like this:
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.
If you are an animal-lover, you may feel sad about it.
If you enjoy solving mysteries, you might like this film.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Tip:
We put a comma after the if-clause when it is the first part of a sentence.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
A1
▲
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
3. If Amy (completes, will complete) all her homework quickly,
she (watches, will watch) the chat show.
4. If Daniel (takes, will take) part in the game show,
he (wins, might win) a prize.
5. If Sandy (finds, will find) a programme interesting,
she (introduces, will introduce) it to us.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
present
comma
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Millie watched a documentary about animals. Help Millie answer her father's questions with the help of the words in the box.
A2
▲
attack catch hunt live protect walk
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
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)_______________.
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)_________.
is in danger
will attack
is hungry
will catch
are thirsty
will walk
will hunt
live in the wild
will live
have babies
will protect
is danger
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Tip:
We do not use a comma if the main clause comes first.
We can use unless to say that something can only happen or be true in a particular situation.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
B Using unless
The situation will continue unless humans stop hunting them for their fur and bones.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Sometimes we can use if ... not to replace unless.
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.
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.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Unless you try your best, you will not realize your dream.
You will be late unless you leave right now.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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.
▲
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1. Unless the weather report says it is going to rain,
2. We will arrive at the studio around 9:30 a.m.
3. Unless you already know the studio very well,
4. You will buy your lunch at the restaurants in the studio
5. Unless you are tired,
6. You will have a chance to see how a TV programme is recorded
_____
_____
_____
_____
_____
_____
c
d
f
a
b
e
unless you take your own food with you.
you will not need to take the minibus in the studio.
you will not have to take an umbrella with you.
unless the traffic is very heavy.
unless you have little interest in it.
you will travel around it with a tour guide.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
We use the simple _______ (future, present)
tense in the unless-clause.
present
新知学习
课堂小结
当堂检测
学习目标
重点研讨
if引导的条件状语从句
条件状语从句在复合句中表示主句动作发生的条件。if意思是“如果;假如”,表示在某种条件下某事很可能发生。如:
If it does not rain tomorrow, we will go hiking.
如果明天不下雨,我们就去远足。
You will get good grades if you study hard.
如果你努力学习,就会取得好成绩。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
注意:if引导的条件状语从句可以位于主句之前,也可位于主句之后。如果从句在前,从句与主句之间要用逗兮隔开。
在if引导的条件状语从句中,主句中的动词常用一般将来时,从句中的动词用一般现在时。如:
If you ask him, he will help you.
如果你请他(帮忙),他会帮你的。
They are going to have a picnic if they are free next Saturday.
如果下周六有空,他们就去野餐。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
在if引导的条件状语从句中,主句也可含有情态动词或是祈使句。如:
If it is fine tomorrow, we can go and fly the kite.
如果明天天气好,我们可以去放风筝。
Don't miss the programme if you like music.
如果你喜欢音乐,不要错过这个节目。
注意:在if引导的条件状语从句中,无论主句用一般将来时、情态动词还是祈使句,从句均用一般现在时。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
unless引导的条件状语从句
我们还可以用unless来引导条件状语从句。如:
Unless he studies hard, he will never pass the exam.
除非他刻苦学习,否则考试永远不能及格。
We will not get there on time unless we leave earlier.
如果我们不早点离开,就不能准时到那里。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
unless意思是“除非,如果不”,相当于if … not。如:
You will be late unless you leave at once.
如果你不马上走,你将会迟到。
= If you do not leave at once, you will be late.
注意:当某种条件所引起的结果是一种情绪或想法时,不能使用unless,只能用if … not。如:
I will be angry if I am not invited to the party. (√)
I will be angry unless I am invited to the party. (×)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
在unless引导的条件状语从句中,主句中的动词常用一般将来时,从句中的动词用一般现在时。如:
Unless it rains, the game will be played.
除非下雨,否则比赛将照常进行。
He cannot see clearly unless he wears glasses.
他不戴眼镜就看不清楚。
Don't touch the machine unless the teacher allows you to.
没有老师的允许,不要乱动机器。
同if引导的条件状语从句一样,在unless引导的条件状语从句中,主句也可以含有情态动词或是祈使句。如:
重点单词和短语:
attack, male, studio, minibus, polar bear
if引导的条件状语从句:
条件状语从句在复合句中表示主句动作发生的_____。if引导的条件状语从句可以位于主句_____,也可位于主句_____;在if引导的条件状语从句中,主句中的动词常用__________,从句中的动词用_________。
unless引导的条件状语从句:
我们还可以用unless来引导条件状语从句,相当于_______;在unless引导的条件状语从句中,主句中的动词常用____________,从句中的动词用____________。
Unit 6
Period 3
新知学习
课堂小结
当堂检测
学习目标
重点研讨
条件
之前
之后
一般将来时
一般现在时
if … not
一般将来时
一般现在时
新知学习
课堂小结
当堂检测
学习目标
重点研讨
用所给单词的适当形式填空。
1. If it ___________ (be) fine, what will you do tomorrow
2. If Jim ___________ (come), we will have a good time.
3. Unless you ___________ (take) more care, you'll have an accident.
4. We ___________ (be) late unless we speed up.
5. You ___________ (not hear) anything unless you listen carefully.
6. You ___________ ( miss) the bus unless you hurry up.
is
comes
will be
take
won't hear
will miss