Unit 5 Look into Science.课堂同步练习(有答案)

Unit 5课堂练习题
Lesson 25
I. 根据括号中所给的汉语用适当的词语填空。
1. The teacher is showing the ___________to the students.（实验）
2. Danny, are you good at _________?（科学）
3. You can __________ my words are correct sooner or later.（证实）
4. All the bottles are ____________ water.（装满）
5. You can try it in another ______________.（科学的方法）
II. 根据句子意思用适当的介词填空。
1. The students are talking _________ their experiment.
2. Do you know what will happen _________ in a hundred years?
3. Li Ming, do you know the girl ________ the red swimsuit?
4. Please do the experiment ________ the jar full.
5. They have no chairs to sit _________ now.
III. 用括号中所给动词的适当形式填空。
1. Why not __________ your new sweater to school tomorrow? (wear)
2. I will tell him my theory when she _________ back. (get)
3. They have kept us ________ for a long time. (wait)
4. She needs _________ all her school things to school. (bring)
5. Our teacher asked us _________ our homework on time. (finish)
IV. 按要求进行句式转换，每空一词。
1. I can tell the students what we’re going to do.（对画线部分提问）
_________ ________ you tell the students?
2. That will be funny.（改为反意疑问句）
That will be funny, __________ _________?
3. Danny, sit in the chair.（改为否定句）
Danny, ________ __________ in the chair.
4. I think we will get wet.（改为否定句）
I ________ _________ _________ get wet.
5. There is something wrong with my computer.（改为同义句）
My computer __________ ________ well.
Lesson 26
I. 从方框中选择适当的动词并用其适当形式填空。
make light watch put burn
1. Danny ____________ the candles and then blew them out.
2. Look at the fire. It has kept ____________ for three hours.
3. Zhang Hong ____________ the candles in the candleholder and sat down.
4. _______________ the observation, Mr. Wang is working hard day and night.
5. _______________ carefully and you’ll find the differences between the two paintings.
II. 根据句意和所给的首字母提示用适当的词语填空。
1. I like science and I think it is very i______________.
2. He cut the apple into h__________ and let me choose.
3. If I turn off all the lights in the dark. What will h___________?
4. Jenny, please fill the bottle f__________ of water.
5. We are s____________ you will like this subject.
III. 按要求进行句式转换，每空一词。
1. Let her help you with your English.（反意疑问句）
Let her help you with your English, __________ _________?
2. The candle is pink.（对画线部分提问）
__________ __________ is the candle?
3. The bag is full of rice.（同义句）
The bag is _________ _________ rice.
4. She lighted the candle with a match.（一般疑问句）
__________ ________ _________ the candle with a match?
5. The teacher asked the students what happened.（对画线部分提问）
_________ ________ the teacher ask the students?
IV. 根据所给的汉语完成下面的句子，每空一词。
1. 我已经用完了所有的水彩笔了。你能借给我几支吗？
I have ____________ ___________ all my markers. Can you lend me some?
2. 我们班有五分之三的学生喜欢英语。
______________ ____________ the students in our class like English.
3. 李明， 不要忘了吹灭蜡烛。
Li Ming, don’t ____________ ____________ ____________ out the candle.
4. 天快黑了，他们便停止工作了。
It was getting dark and they _____________ ____________.
5. 让他和你一起做实验吧！
____________ ____________ ___________ the experiment with you.
Lesson 27
I. 根据句意用适当的介词填空。
1. Peter looked ______________ the telescope at the sky.
2. The sun will go down _____________ about an hour.
3. He looked ____________ his lost bicycle, but he couldn’t find it.
4. When did you graduate ____________ this university?
5. Mr. Zhou gave me some advice ____________ my English study.
II. 按要求进行句式转换，每空一词。
1. They came back home after supper.（对画线部分提问）
______________ ___________ _________ __________ back home?
2. He said, “I haven’t planned to travel to Sanya.”（改为间接引语）
He said ___________ __________ __________ planned to travel to Sanya.
3. This is the bicycle. I bought it yesterday.（合并为带有定语从句的复合句）
This is the bicycle ____________ __________ ___________ yesterday.
4. That is very good advice.（改为感叹句）
_____________ ___________ advice that is!
5. Her brother enjoyed science at school.（改为否定句）
Her brother ____________ __________ science at school.
III. 连词成句。
1. worth, try, that, a, is
______________________________________________________?
2. me, do, be, what, you, to, want
______________________________________________________?
3. go, once, asked, to, he, home, we
______________________________________________________.
4. am, excuse, he, making, I, thinks, an
______________________________________________________.
5. for, been, they, everything have, ready
______________________________________________________.
IV. 根据所给的汉语完成下面的句子，每空一词。
1. 我姐姐去年毕业于这所大学。
My sister _____________ _____________ this university last year.
2. 自从上周开始我一直在等你。
I _____________ ___________ ___________ for you since last week.
3. 你在出去时务必带上雨伞。
___________ ____________ ___________ ___________ your umbrella when you go out.
4. 刚才她浏览了一遍今天的报纸。
She _____________ ___________ today’s newspaper just now.
5. 你在睡觉之前经常做什么？
What do you often do ______________ ____________ to bed?
Lesson 28
I. 用括号中所给词语的适当形式填空。
1. They gave us some good _____________ (suggest) on our work.
2. In order to get better _______________ (educate), she went to study in Beijing.
3. Who is the ____________ (design) of this new machine?
4. He was ______________ (complete) wrong this time.
5. My mother took some ____________ (freeze) meat from the fridge.
II. 用适当的介词填空。
1. The teacher told me to pat attention ___________ my pronunciation.
2. We are getting ready __________ the work. Can we start now?
3. Dr. Lee is interested ____________ studying the life of butterflies.
4. I found a lot of useful information after looking ___________ the Internet.
5. You must put more effort __________ your work if you want to succeed.
III. 按要求进行句式转换，每空一词。
1. This hat matches her dress.（改为反意疑问句）
This hat matches her dress, _____________ ____________?
2. Her uncle is a biologist.（对画线部分提问）
_____________ ___________ her uncle do?
3. They cut down many trees last year.（改为一般疑问句）
_____________ __________ __________ down many trees last years?
4. She had to put more effort into her work.（改为否定句）
She _____________ ___________ to put more effort into her work.
5. Do you know when we’ll start the meeting?（改为简单句）
Do you know _____________ __________ __________ the meeting?
IV. 根据所给的汉语完成句子，每空一词。
1. 她完成工作后会帮助你们的。
She’ll help you ____________ ___________ __________ her work.
2. 我认为这本书既有趣又有用。
I think this book is interesting ____________ ____________ ___________ useful.
3. 如果我是工程师，我会发明一种新电脑。
___________ __________ ___________ an engineer, I would invent a new computer.
4. 李明离开加拿大有一个月的时间了。
Li Ming ___________ ___________ _________ __________ Canada for a month.
5. 请告诉我是什么每天困扰你呢？
Can you tell me __________ __________ __________ every day?
Lesson 29
I. 用括号中所给动词的适当形式填空。
1. You need ___________ (choose) two answers at the same time.
2. How about ____________ (combine) a cow and a rabbit?
3. We can use a blueprint ___________ (build) a house.
4. Nothing can stop us from __________ (study) the DNA.
5. Our teacher told us __________ (repeat) the words for a second time.
II. 从方框中选择适当的动词并用其正确形式填空。
identify choose clone build combine
1. These are all ____________ animals and they look the same.
2. What about ____________ the two plants into one?
3. You can use another way _____________ whether they have the same DNA.
4. The workers use the blueprint _____________ houses.
5. Why not ___________ a horse and a donkey to do this experiment?
III. 按要求进行句式转换，每空一词。
1. She didn’t know what she should choose at all.（改为简单句）
She didn’t know ____________ ________ _________ at all.
2. We can call them blueprints.（对画线部分提问）
____________ __________ you call them?
3. He has already known the answer.（改为一般疑问句）
___________ he known the answer __________?
4. They are talking and laughing happily.（改为感叹句）
____________ _________ they are talking and laughing!
5. Mr. Lee is both our teacher and our friend.（改为同义句）
Mr. Lee is ___________ _________ our teacher _________ ________ our friend.
IV. 根据所给的汉语完成下面的句子，每空一词。
1. 如果我是医生，我将帮助所有的病人。
I would help all the patients __________ ___________ _________ a doctor.
2. 你们最好不要克隆水果了。
You’d _________ __________ _________ fruits.
3. 昨天他们真的去了博物馆。
They __________ __________ to the museum yesterday.
4. 我和她以前都未曾去过巴黎。
___________ I ________ she _________ __________ __________ to Paris before.
5. 他还没有决定买那件毛衣。
He hasn’t decided __________ __________ _________ _________ yet.
Lesson 30
I. 根据句意用适当的词语填空。
1. We have got everything ______________. Let’s start the experiment now.
2. This hall is big ______________ to hold 1,000 people.
3. You can’t pull the door open. You have to ____________ it.
4. My father often ___________ me to the park when he is free.
5. It’s warm ____________ the room. Please don’t go outside now.
II. 用括号中所给词语的适当形式填空。
1. She _________ all about the matter before long. (forget)
2. My parents _________ in a week. (return)
3. Look at the clouds. I think it _________. (rain)
4. I’ll give her the note when he _______ back. (come)
5. Tony _________ sixteen years old next year. (be)
III. 根据所给的汉语完成句子，每空一词。
1. 你能给我做个风筝吗？
Can you make a kite ________ _________?
2. 我到处找他们，但就是找不到。
I _________ _________ them everywhere, but I couldn’t ________ them.
3. 他说他有很多工作要做。
He says he has a lot of work _________ _________.
4. 我想让他和我一起去公园。
I want __________ _________ ________to the park with me.
5. 我们相信我们能在一周内完成工作。
We _________ _________that we can finish the work in a week.
IV. 按要求进行句式转换，每空一词。
1. Jenny did some cleaning at home this morning.（改为否定句）
Jenny _________ ________ _________ cleaning at home this morning.
2. Danny, don’t you think so?（进行肯定回答）
_________, I __________.
3. The air holds the water.（对画线部分提问）
__________ _________ the air hold?
4. Tony, take your hand off.（改为否定句）
Tony, ________ ________ your hand off.
5. The teacher told them, “Don’t do it again.”（改为同义句）
The teacher told them __________ _________ do it again.
参考答案：
Lesson 25
I. 1. experiment 2. science 3. prove 4. filled with 5. scientific method
II. 1. about 2. in 3. in 4. with 5. in
III. 1. wear 2. gets 3. waiting 4. to bring 5. to finish
IV. 1. What can 2. won’t it 3. don’t sit 4. don’t think we’ll 5. doesn’t work
Lesson 26
I. 1. lighted 2. burning 3. put 4. To make 5. Watch
II. 1. interesting 2. half 3. happen 4. full 5.sure
III. 1. will you 2. What colour 3. filled with 4. Did she light 5. What did
IV. 1. used up 2. Three-fifths of 3. forget to blow 4. stopped working 5. Let him do
Lesson 27
I. 1. through 2. in 3. for 4. from 5. on
II. 1. When did they come 2. that he hadn’t 3. that / which I bought 4. What good 5. didn’t enjoy
III. 1. Is that worth a try
2. What do you want me to do
3. He asked me to go home at once
4. He thinks I am making an excuse
5. They have been ready fro everything
IV.1. graduated from 2. have been waiting 3. Make sure to take 4. looked through 5. before going
Lesson 28
I. 1. suggestions 2. education 3. designer 4. completely 5. frozen
II. 1. to 2. for 3. in 4. on 5. into
III. 1. doesn’t it 2. What does 3. Did they cut 4. didn’t have 5. when to start
IV. 1. after she finishes 2. as well as 3. If I were 4. has been away from 15. what worries you
Lesson 29
I. 1. to choose 2. combining 3. to build 4. studying 5. to repeat
II. 1. cloned 2. combining 3. to identify 4. to build 5. choose
III. 1. what to choose 2. What can 3. Has, yet 4. How happily 5. not only, but also
IV. 1. if I were 2. better not clone 3. did go 4. Neither, nor, has ever been 5. which sweater to buy
Lesson 30
I. 1. ready 2. enough 3. push 4. takes 5. inside
II. II. 1. will forget 2. will return 3. is going to rain 4. comes 5. will be
III. 1. for me 2. looked for, find 3. to do 4. her to go 5. are sure
IV. 1. didn’t do any 2. Yes, do 3. What does 4. don’t take 5. not to