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Unit
23 You mustn't
play on
the road!
【重点难点点拨】
1 You must be
more careful!
You mustn't play on the road.
The traffic must
stop. You must never jump the queue.
以上情态动词must表示必要性,有“应该”,“必须”的意思。
2 It's too dangerous
to cross. 现在穿过(马路)太危险了。
too…to… “太……,以致不能……”
如: She is too
young to go to school.
3 When the lights
are red,the traffic must stop.
when引导的从句是时间状语从句。
If you jump the
queue, other people will not be pleased.
If you don' go
soon, you'll be late.
if引导的从句是条件状语从句,要特别注意的是:在表示将来动作的时间,条件从句中,谓语动词用一般现在时表将来,而主句中的谓语动词要用一般将来时。
如:I'll write to
you after I get there.
We'll go swimming
if it doesn't rain tomorrow.
4 You mustn't
eat anything until you see the doctor.
“not…until…”的意思是“
直到……才……”
如:It didn't stop
raining until midnight.
He didn't come
until late in the evening.
I had no idea
of it until you told me.
【重点难点例题解析】
1 我们太累走不动了。
误:We are too tired
not to walk.
正:We are too tired
to walk.
析:“too…to…”结构本身已含有否定意义,不可再与not连用。
2 如果你再读一遍,你就会找到问题的答案。
误:You'll find
the answer to the question if you'll read it again.
正:You'll find
the answer to the question if you read it again.
析:在if引导的表示将来动作的条件状语从句中,谓语动词要用一般现在时表将来。
3 我们等到你回来才离开这儿。
误:We'll leave
here until you come back.
正:We won't leave
here until you come back.
析:“not…until…”结构一般要求主句的谓语动词是瞬间动词,如果主句的谓语动词是延续性的,可用肯定形式,意思是“直到……为止”。
如:We shall wait
here until you come back. 我们等到你回来。
【重点难点练习题】
句型转换
1. She is short.
She can't reach the apples.(用too…to…连成一句)
She is __________________
__________________
reach the
apples.
2. He got up late.
He didn't catch the bus.
(同上)
He got up __________________
__________________ __________________
the bus.
3. She didn't
let the man in. She knew he was a doctor.(用not…until改写)
She __________________
let the man in __________________ she
knew __________________
__________________ a doctor.
4. I will write
to them. I'll get to Shanghai. (用when连成一句)
I will __________________
__________________
__________________ I ____________________________________
Shanghai.
5. He will not
go to work. I will go shopping with him tomorrow. (用if连成一句)
__________________
he __________________ go to work tomorrow,
I __________________ go shopping with him.
【全方位单元综合练习题】
Ⅰ 找出每组单词中划线部分读音不同的词
1. Ａ dangerous
B. traffic C. potato D. mistake
2. Ａ country B. enough
C. young
D. cloudy
3. Ａ unlike B. understand
C. until D.
up
4. Ａ always B. also
C. salt
D. talk
5. Ａ visit B. licence C. give
D. cinema
Ⅱ 单项选择
1. What __________________you
do this Sunday if it ?
A do…will rain
B. will…rain
C. do…rains D. will…rains
2. The old woman
was __________________the head of the queue.
A in B. at C. from
D. on
3. It's dangerous
to play__________________ street.
A on B. in C. in the D. at
4. They are __________________a
visit to China.
A in B. on C. at
D. to
5. I'll do it
now __________________I forget it.
A in front of
B. behind
C. before D.
after
6. We __________________until
he came back.
A did not begin
to do something
B. began to do
anything
C. began to do
everything
D. did nothing
7. It's still
cold __________________ the early spring.
A at B. in C. on
D. to
8. You __________________
cross the street when the traffic
is moving.
A mustn't never
B. must don't
C. must never D. must do
9. “You must stand
in line and can't jump the queue.”
“__________________.”
A It's nothing
B. Sorry,I won't
do it again
C. That's all
right
D. Thank you
10. “It was nice
talking to you.” “__________________.”
A Thank you B. Not at all
C. It doesn't
matter D. All right
Ⅲ 阅读理解
It was Sunday
morning. Tom and his friend Dick went to the river to fish.
To m took his dog, Tim with him.
The dog usually sat quietly on the river bank. But sometimes
when he saw a small animal or a bird, he would run after(追赶)
it and try to catch it. Dick hated
the dog very much because the dog frightened the fish.
“Why do you bring
your dog here?” said Dick to Tom. “Look at him. He is runn ing up and down. All the fish
are frightened and swim away. We must be quiet if we
want to catch a fish.”
“You are right,”
answered Tom. Then he shouted at his dog.
“Be quiet, Tim.”
But Tim didn't listen to him.
“We'll never catch
a fish now. Shall we go home, Dick?” said Tom. “Next time , I shall not bring him again.”
“Wait,”said Dick.
“A fish is biting(咬)my line. I can feel it.”
“Be careful!”
said Tom. “Don't step forward, or you'll fall into the water ”. But it was too late. Dick was so excited that he forgot the
danger. He stepped( 迈步)forward
to pull the line. Down fell the boy into the water. “Help,
help! I can't
swim.” Dick shouted, struggling(挣扎)in the river. But Tom
could not swim , either. Just at that very moment, Tim appeared!(出现) The brave
dog jumped into the water and then pulled Dick onto dry land with his teeth
biting Dick's shirt . Dick was
saved. He was still holding the line in his hand. On its
end was a big fish.
“Look,” he said,
“I've caught the fish.”
“No, you haven't,”
said Tom, “Tim caught you and the fish.”
1. Tim was __________________
A
a friend of Dick's B a dog
C the name of
a boy D Tom's brother
2. The dog __________________
ran after a small animal or a
bird and frightened the fish.
A
usually B often C sometimes D never
3. Dick fell into
the river because __________________.
A
the dog ran after him B Tom pushed him
C the line was
broken D he stepped forward
4. __________________saved
Dick.
A
The dog B Tom C The line D Nobody
5. Which of the
following is true?
A
The boys caught a big fish.
B The dog ate
the fish
C The boys didn't
catch any fish.
D The dog broken
the line
Ⅳ
完形填空
Once, when Jack
was a child, his mother was going to town.
1
she left, she said to him, “Jack, while I am 2
, stay near the door and 3
it all the time!” She said this because the re
were many thieves in their town.Jack
sat down 4
the door. After an hour, one of his aunts came. She
asked Jack, “Where is your mother?” “In
5
.” Jack answered. “Well,”
said hi s aunt, “we 6
your house this evening. Go a nd
tell your mother.”His aunt then
went away, and Jack began
7
.Mother said, ‘Watch the
8
all the time!’ and aunt said, ‘Go and tell y our
mother.’”
He thought and
thought, then
9
, he pulled the door down,
put it on his back and went to his mother
10
it.
1. Ａ
After B Before
C As soon as D
Until
2. Ａ
away B leave
C in Dgoing
to town
3. Ａ
see B look C watch D watch at
4. Ａ
on B with C to D beside
5. Ａ
the town B her room
C the house of
Jack's aunt
D the garden
6. Ａ
visit
B are going to visit
C visited C
will visited
7. Ａ
to think B thinks
C thinking D
thought
8. Ａ
house B garden C door D thieves
9. Ａ
at once B at last C at the end D on last
10. Ａ
to B on C under D with
Ⅴ 用括号内所给词的正确形式填空
1. “Where is the
way to the post office?”
“Sorry,I don't
know the way.I'm a__________________here.” (visit)
2.
The children are very __________________ about
their teacher's health.(worry)
3. He is doing
his homework __________________than last time. (careful).
4. It was a __________________day
yesterday,but today i t is __________________.
(sun,cloud)
5. Which part
of __________________ are you from? (French)
6. The old man told the
young boy not to be a queue
.(jump)
Ⅵ 用动词的适当形式填空
1. My parents
__________________ (be) busy last Sunday.
2. We __________________(go)
swimmimg if it
(be) sunny tomorrow.
3. She usually
__________________ (come) to school by bike, but
yesterday she __________________
(come)on foot .She lost her bike two days ago.
4. “What __________________you
(go) to do
this Sunday?”“We__________________(go)
to see my uncle with my sister.”
5. Look at these
children.They __________________ (get) ready
for the party.
6. Be careful!
The car__________________(come).How quickly
it __________________(run)!
Ⅶ 选用所给句子完成对话
A A car may hit
you.
B. Let's go there.
C. What's the
name of your school?
D. Why not?
E. There is a
nice playground in our school.
A: You mustn't
play football in the street.
B: 1
A: Because there
is too much traffic.
2
B: But where shall
I go and play?
A: Would you like
to come to our school to play?
B: 3
A: No.4 Middle
School. 4
B: Oh, I remember.It's
not far from here.OK. 5
Ⅷ 汉译英
1. 为什么他躺在床上呢? Why ____________ he ____________?
2. 当交通灯是红色时你必须停下来。
When the _____________
________ are red,you ___________
_________.
3. 排头的是位老太太。
___________
____________
________ the queue was an old woman.
4. 王叔叔太忙休息不了。
Uncle Wang is
__________ _________________________
a rest.
5. 直到他又一次给我打电话,我才想起他的名字。
I _______
_____ his name
he _______ _______ ________.
答案
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