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Unit
24 What do you have to do?
【重点难点点拨】
1 What do you
have to do?
I have to tidy
my room.
Do you have to?
She has to help
her Mommy!
情态动词have to 表示客观需要做的事情,意思是“必须”“不得不”。其后跟动词原形。它主要用在一般现在时和一般过去时中。其陈述句形式,疑问句形式,简略答语详见课本P96。
have to 和must在一般情形下是通用的。have
to 用的场合比较多,尤其在美国。
如:We must(have
to) do as you are telling.
I always have
to (must always)work hard.
但二者用法上还是有一定区别的。
1) 在肯定形式中must表主观的必要。have
to则表客观义务。
如:I have to take
care of my brother.我必须照看我的弟弟。(父母的要求)
We must obey(遵守)our
teachers.我们必须服从教师。(主观意愿)
2) 在否定形式中must表“决不可以……”“不允许……”,而have
to表“不必……”。
如:You have not
to say that.你用不着那样说。
You mustn't say
that. 你决不可以那样说。
2 instead 和instead
of
instead是副词,一般放在句末。instead
of是介词短语,其后要接名词,代词或短语。
如: Why not play
football instead?
He is going to
England instead of France.
3 too much 和
much too
too much 和much
too都是副词词组,但too much意为“太多”,常用来修饰不可数名词或动词。much
too意为“十分”，“很”,常用来修饰形容词或副词。
如:The young woman
often eats too much food.
It's much too
cold.
4 I have to keep
everything clean and tidy.(clean and tidy作宾语的补足语)
5 every five
minutes 每五分钟
【重点难点例题解析】
1. Give me this
__________________ that.
A to instead B. instead
C. instead for
D. instead of
答案D。
(A,C结构不对。B是副词,一般放在句末。)
2. Tom says he
__________________ wash hands before a meal.
A must to B. will has to
C. has to D. have to
答案C。
(A,B,D的结构都不对。)
3. I've got __________________
to do.
A too much work
B. too much works
C. too many work
D. so many works
答案Ａ。
(work是不可数名词,不能加－s,也不能用many修饰,因此B,C,D都不对。)
4. He went there
every __________________.
A three day B. three days
C. third days D. a three day
答案B。
(A中的day应是复数。C中的third应改为基数词three。D中有两处错,一是不应有a,再一处是day应用复数。)
【重点难点练习题】
用适当的情态动词填空
1. __________________
I leave school now? No,you
.You __________________clean
the room first.
2. You __________________
never jump the queue when you are waiting for the bus.
3. __________________
you__________________ __________________
help your parents with the housework at home?
Yes, I do.
4. Who is outside
the door? It
__________________ be Jim.
5. __________________
you be at the park before 9 o'clock?
I'm sorry I __________________.
【全方位单元综合练习题】
Ⅰ 找出每组所给单词读音不同的词
1. Ａ tidy B. twins
C. thin
D. swim
2. Ａ matter
B. have
C. wash
D. cabbage
3. Ａ health
B. mean
C. instead D. meant
4. Ａ visit B. pleased C. mistake
D. because
5. Ａ June B. excuse
C. usually D. duty
Ⅱ 单项选择
1. You __________________eat
__________________food if you
want to be thinner.
A must,less B. have to,less
C. must,moreD.
have to,more
2. Is there __________________
wrong
the girl?
A something,to
B. nothing,with
C. anything,to
D. anything, with
3. “Did you go
to the zoo?”
“No,some of us
went to the park__________________the zoo.The others went to
the cinema__________________.”
A instead,instead
B.
instead of,instead of
C.instead of,
instead
D. instead,instead of
4. We must __________________
our classroom clean and tidy.
A kept B. keep
C. keeping
D. to keep
5. Walking is
__________________.
A good exercise
B. good exercises
C.a good exercise
D. a good exercises
6. Mrs Brown is
__________________ fat woman and she of ten
feels unwell.
A a B. an C.
the D. /
7. The young man
always eats __________________ food.So he's getting __________________.
A many,fatter
B. much,fatter
C. many,thinner
D. much,thinner
8. The old woman
__________________ morning exercises every day.
A takes B. is taking
C. will take D.
took
9. She sings __________________.
A good enough
B. enough good
C. enough well
D. well enough
10. “She isn't
too fat,is she?” “__________________.”
A Yes,she isn't
B. No,she isn't
C. No,she is D. Yes,she's not
Ⅲ 阅读理解
One day two young
men were going through the forest. One said to the other ,“ We
are good friends. We must help each other. If any beast(兽类)
come at you, I will stay with
you and help you.” The other friend said, “I well help you
too, if any beast comes at you.”
They walked on.After
a while there was a great noise. It was a big bear. The
young men ran away
quickly. One of them got up into a tree. But the other was
fat and could no t climb up. So
he threw at the foot of the tree. He thought to himself.
“The bear will think that I am dead.”
Soon the bear
came near. The bear looked at the fat man, then it put its nose down and smelled him. The young man held his breath(屏住气).
The bear thought he was dead,
so it went away.
The man in the
tree came down. With a smile he asked his friend, “The bear
put its mouth so near to your ear. What did it say to you?”
The friend answered,
“The bear said, ‘Don't trust(信任)your friend. He ran away
from you when you needed his help most. Remember: A friend
in need is a friend indeed(真正的)'”.
根据短文判断下列各句是否正确，正确的写“T”，错误的写“F”
1. The two young
men said that they must help each other when one of them
needed help.
2. When a bear
came, the fat man got into a tree.
3. The bear had
one of the young men for its lunch.
4. The bear went
away because the young man was dead.
5. The man in
the tree was not a friend indeed.
Ⅳ 完形填空
Mr Hogg 1
in an office in a small town. One day his boss(老板)
said to him,“Hogg, I want you
2
to New York. Here is the address.”
Hogg went to New
York 3
train. He left the station, and thought,“The office isn't
far 4
the station. I'll find it easily.”
But after an hour
he was still
5 , so he stopped
and asked an old woman. She said,“Go straight
6
this street, turn to the left at the end, and it' s
the second building
7
the right.” Hogg went and found it.
A few days 8
he went to the same city, but again he did not find the office, so he 9
ask someone the way. It was the same old woman! She
was very
10
. “Are you still looking for that place? ”
1. Ａ
worked B studied C working D studies
2. Ａ
go B going C to go D went
3. Ａ
in B by C with D on
4. Ａ
to B on C in D from
5. Ａ
looking after B waiting for
C looking for D
looking at
6. Ａ
along B to C from D in
7. Ａ
at B on C with D in
8. Ａ
after B late C later D soon
9. Ａ
had to B must C need to D may
10. Ａ
happy B angry C surprised D sorry
Ⅴ 短文填空
用括号内所给动词的适当时态填空
A
Mr Green 1
(make) a robot(机器人).One day he said to
Mrs Green,“Meet Robot,he is going to do all the housework
for you.”
“Can he 2
(talk)?”Mrs Green asked.
“No,he can't,”said
Mr Green.“But he's very clever.He 3
)(know)
English.He is going
to help you with the housework. This robot can cook and
4 (wash)
and make the beds and 5 (sweep) the floors.He
can do all the housework.He never 6 (need) a
rest.”
“Do you,robot?”
Mrs Green asked.The robot nodded
(点点头).
The robot 7 (begin)
to work at once. He 8
(wash) the
dishes in the
kitchen.After that
he 9 (sweep) the floor.The kitchen 10 (be)
now clean.Mrs Green was very happy.
B
Mr White 1 (look)
out of his window.There was a boy at
the other side of the street.The boy 2 (take)
some bread out of a bag and 3 (start)
to eat it.
There was a very
thin dog in the street,too.The boy said to it,“ 4 (come)here,good
dog.I'll give you some bread.”
The dog was hungry
and 5 (go)
to the boy,but the boy did not give it any bread.
He kicked(踢)the dog. It 6 (run)away
and the boy 7
(laugh).Mr White 8 (see)this
and came out of his house and said to the boy,“I'll give
you some money.”
The boy was happy
and said ,“Yes.”
“Come here,”Mr
White said.The boy went to him,but Mr White did not give
him any money. He 9 (hit)the
boy with a stick(手杖).
The boy 10 (cry)and
said,“Why do you hit me?I didn't ask you for any money.”
“No,”Mr White
said.“The dog did not ask you for any bread, but you kicked
it.”
答案
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