Unit 5 Look into Science 单元课时练（一）2022-2023学年冀教版九年级英语全册（含答案）

冀教版九年级英语上册单元课时练
Unit 5 Look into science
Lesson 25 Let's Do an Experiment！
一、单项选择
1. We did ____ experiment in physics class.
A. a B. an C. any D. /
2. Please fill the bottle ____ water.
A. with B. of C. in D. for
3. —Could you tell me the ____ of making such tasty cakes
—Well, I just follow the instructions in the cookbook.
A. time B. method C. cost D. menu
4. He has ____ arms now and is able to pick the table up with one hand.
A. weakest B. weaker C. strongest D. stronger
5. It's cold outside.____your jacket, Tom.
A. Put off B. Put on C. Take off D. Take on
6. When I got to the bus stop, I missed the early bus and I had to ____ the next one.
A. give up B. keep off C. call off D. wait for
7. —Are you feeling better now
—Yes. I' m ____ to go to school.
A. good enough B. enough good C. well enough D. enough well
8. —Have you returned the book to the library yet
—Not yet. Don't worry. I ____ it soon.
A. return B. returned C. have returned D. will return
9. I don't know the man ____ is standing at the gate.
A. 不填 B. which C. that D. whom
10. —Can I have a look at your photos, please
—____.
A. Sure, here you are B. Don't mention it
C. I can't agree with you D. I'm sorry to hear that
二、用所给词的适当形式填空
1. Let's ____(pour) the water into the container.
2. Over the years I've come to the ____(conclude) that she's a very great musician.
3. The boy is ____(call)Jimmy. He is lovely.
4. Do you think that he could ____(possible) be right
5. Take your ____ (raincoat), children! It's raining outside.
三、根据句意及汉语提示完成句子
1. 人类社会的进步不但取决于人们掌握的科学知识，还取决于他们的创新精神。
The development of human society depends on not only people's ____ ____
but also their creative spirit.
2. 为了查明原因，我把那个盒子倒了过来。
In order to find out the reason, I ____ the box ____ ____.
3. 坐直，并且把你们的手从桌子上拿开。
Sit straight, and ____ your hands ____ the desk.
4. 他发现空气的压强那么大。
He ____ that the air ____ is so strong.
5. 你准备好给大家解释一下这个正确答案了吗？
____ you ____ to explain the ____ answer
四、阅读理解。
Look at the centre circles of Diagram (图) A and Diagram B. Which of the centre circles looks larger
Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact, they are exactly the same size.
Then look at the picture on the left. What do you see A vase Or two faces Does the picture change quickly from one to the other again and again Maybe or maybe not, but you can never see them at the same time.
“What’s happening Is something wrong with my eyes ” You may wonder at what you see. Don’t worry. Here is how it goes:
When we look at things, our eyes send messages to our brains and then our brains interpret (解读) the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “visual illusion(视觉错误)”.
Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey, I Shrunk the Kids just make use of illusions.
( )1. Why does the centre circle in Diagram A look smaller than that in Diagram B
A. Something is wrong with our eyes.
B. The two circles are not the same size.
C. Our brains interpret the information in a wrong way.
D. The two pictures change quickly from one to the other.
( )2. What’s the right order according to the passage
a. We look at things with our eyes.
b. Our brains interpret the messages.
c. Our brains tell us what we have seen.
d. Our eyes send messages to our brains.
A. a—c—d—b B. c—a—b—d C. a—d—b—c D. b—c—a—d
( )3. What do movie makers make use of visual illusions for
A. To help the actors look better.
B. To make the actors much braver.
C. To help the actors become stronger.
D. To make the actors seem different in size.
( )4. In the picture on the right, it seems that Line AB is shorter than Line CD, but in fact Line AB is as long as Line CD. Which paragraph can explain what has happened to our eyes
A. The second one. B. The third one.
C. The fifth one. D. The sixth one.
( )5. Which magazine is the text probably taken from
A. Art World
B. Amazing Science
C. Health and Medicine
D. Daily News
Lesson 26 Keep the Candle Burning
一、单项选择
1. He offered ____ lighter and passed it to me.
A. a B. an C. any D. /
2. Our reading club shares ideas with each other ____ one hour every Tuesday.
A. to B. on C. at D. for
3. ____ of the students in Class 6 have lunch at school.
A. Two fifth B. One thirds C. Three fifth D. Three quarters
4. —Who does homework ____,Tom，Jack or Bill —Bill.
A. more carefully B. more careful
C. most carefully D. most careful
5. Don't keep the water ____ when you don't use it. We should save water.
A. run B. runs C. running D. to run
6. The medical team ____ ten doctors.
A. makes up B. makes up of
C. is made up D. is made up of
7. He told the interviewer that he had run_out_of money to buy old bikes.
A. put away B. turned off C. taken out D. used up
8. Tom knew nothing ____ his friend told him.
A. because B. until C. since D. if
9. He stood quietly and ____ the cigarette.
A. lights B. lights up C. lit up D. lighted with
10. —____ is it from your home to school
—It's about ten minutes' walk.
A. How long B. How far C. How many D. How much
二、连词成句(每小题均有一处词形转化)
1. the, candle, look at, burn
__________________________________________________________.
2. very, the book, interest, is
_________________________________________________________.
3. some, you, candles, see, can
___________________________________________________________
4. happen, you, last week, what, to
____________________________________________________________
5. seldom, people, use, now, match
___________________________________________________________.
三、根据短文内容及所给提示，补全文中单词或用所给单词的正确形式填空
One day, my grandfather was badly ill. He had a s____1 breathing. My father quickly called 120 and he was sent to hospital. The doctors first gave him o____2 to save his life. Then he was ____3(examine) carefully. After the doctors' efforts, he was ____4(full) recovered. Now he is s____5 enough to do many things. He says that exercise is the best way to keep healthy.
四、阅读理解。
If I ask you to shut your eyes and give you a piece of apple to eat, would you be able to tell me what it is just by tasting it Of course, you could. Your tongue is covered with tiny “taste buds” which help you know what different foods taste like. Do you know that foods would taste different if you did not have a nose This experiment shows how important your nose is when you taste things.
What You Need:
a friend to help
small pieces of any food like carrot, orange and banana
small pieces of apple, raw (生的) potato, and onion
What You Do:
There are actually three different experiments. You and your friend should take turns to try them on each other.
Experiment 1:
Have your friend close her eyes and open her mouth.
Give her a piece of the food and ask her to taste it.
Then, ask her what she thinks it is. She will probably guess correctly.
Experiment 2:
While your friend has her eyes closed, give her a piece of the raw potato. At the same time, hold a piece of apple right under her nose. Ask her to eat the potato (but don’t call it by name) and tell you what she thinks it is. She will say it is a piece of apple!
Experiment 3: (for the brave)
Take a piece of raw onion. You don’t have to close your eyes this time. Squeeze your nose closed with your other hand so that no smells can get into your nose. Now take a nibble of the onion. Surprise! As long as you hold your nose, you will not be able to taste the onion.
The Science Secret
You already know the science secret. Your nose and your tongue work together to make food taste the way it does. Your tongue, however, can taste only certain flavours like salty, bitter, sour and sweet. All of the other “tastes” are actually “smells”, and you need your nose to “taste” them. Oh, and you might use this science secret the next time you are told to eat something you don’t like the taste of. If you hold your nose while you eat it, you won’t “taste” it at all.
( )1. According to this article, what could a reader know about food
A. People hold their noses to eat onions.
B. If you can smell potatoes, you will taste apples.
C. People need a sense of smell to taste some food.
D. If you close your eyes, food will taste better.
( )2. What is the most likely reason why Experiment 3 is called “for the brave”
A. You keep your eyes open.
B. You have to eat a raw onion.
C. You have to squeeze your nose.
D. You do the experiment alone.
( )3. What’s the best title of the passage
A. Your Eyes Know
B. Your Nose Knows
C. Your Mouth Knows
D. Your Tongue Knows
Lesson 27 Planet Danny
一、单项选择
1. —My mobile phone doesn't work, but I can't find a shop to repair it.
—Oh, let me show you ____ near our school.
A. that B. those C. it D. one
2. When James arrived at the railway station, he tried to look ____ a place to park his car.
A. after B. at C. up D. for
3. —How do you like the novel
—I think it's well worth ____.
A. read B. to read C. reads D. reading
4. You can't pass the exam ____ you study hard.
A. if B. as C. for D. unless
5. —When will your new book ____？
—It has not been decided yet.
A. find out B. come out C. look up D. set up
6. ____he is tired, he doesn't want to stop.
A. Because B. Since
C. Even though D. As if
7. —I want to put up the picture on the wall. Would you mind helping me with it
—____. With pleasure.
A. Of course B. Certainly not
C. You'd better not D. Thanks a lot
二、用所给词的适当形式填空
1. ____(actual), he is an honest boy.
2. He is ____(look) outside through the window.
3. Would you love ____(join) us, Tina
4. We can't see ____(some) stars in the day.
5. When he ____(come) back, I'll tell him the news.
三、阅读理解。
If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet (慧星).
A comet sometimes looks like a star. Like a planet, a comet has no light of its own. It shines from the sunlight it reflects (反射). Like the earth, a comet goes round the sun, but on a much longer path than the earth travels.
If a comet isn’t a star, what is it then
Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. When sunshine melts (融化) the ice in the comet, great clouds of gas go trailing after it. These clouds, together with the dust, form a long tail.
Many people perhaps have seen a comet. However no one knows how many comets there are. There may be millions of comets, but only a few come close enough for us to see.
An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky. Some comets move out of our sight and never come back. Others keep coming back at regular times. A big comet that keeps coming back was named after Halley because he was the one who worked out when it would come back again. Maybe you have ever seen Halley’s Comets because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley’s Comets when it comes near the earth again.
( )1. A comet is like _______.
A. sun B. moon C. sunlight D. the earth
( )2. A large part of a comet is _______.
A. water and rock
B. water frozen into pieces of ice and mixed with iron
C. ice, iron and rock dust
D. only a few big pieces of rock
( )3. Some comets keep coming back _______.
A. at any time B. at noon C. at regular times D. at daytime
冀教版九年级英语上册单元课时练
Unit 5 Look into science
Lesson 25 Let's Do an Experiment！
一、单项选择
1. We did ____ experiment in physics class.
A. a B. an C. any D. /
2. Please fill the bottle ____ water.
A. with B. of C. in D. for
3. —Could you tell me the ____ of making such tasty cakes
—Well, I just follow the instructions in the cookbook.
A. time B. method C. cost D. menu
4. He has ____ arms now and is able to pick the table up with one hand.
A. weakest B. weaker C. strongest D. stronger
5. It's cold outside.____your jacket, Tom.
A. Put off B. Put on C. Take off D. Take on
6. When I got to the bus stop, I missed the early bus and I had to ____ the next one.
A. give up B. keep off C. call off D. wait for
7. —Are you feeling better now
—Yes. I' m ____ to go to school.
A. good enough B. enough good C. well enough D. enough well
8. —Have you returned the book to the library yet
—Not yet. Don't worry. I ____ it soon.
A. return B. returned C. have returned D. will return
9. I don't know the man ____ is standing at the gate.
A. 不填 B. which C. that D. whom
10. —Can I have a look at your photos, please
—____.
A. Sure, here you are B. Don't mention it
C. I can't agree with you D. I'm sorry to hear that
二、用所给词的适当形式填空
1. Let's ____(pour) the water into the container.
2. Over the years I've come to the ____(conclude) that she's a very great musician.
3. The boy is ____(call)Jimmy. He is lovely.
4. Do you think that he could ____(possible) be right
5. Take your ____ (raincoat), children! It's raining outside.
三、根据句意及汉语提示完成句子
1. 人类社会的进步不但取决于人们掌握的科学知识，还取决于他们的创新精神。
The development of human society depends on not only people's ____ ____
but also their creative spirit.
2. 为了查明原因，我把那个盒子倒了过来。
In order to find out the reason, I ____ the box ____ ____.
3. 坐直，并且把你们的手从桌子上拿开。
Sit straight, and ____ your hands ____ the desk.
4. 他发现空气的压强那么大。
He ____ that the air ____ is so strong.
5. 你准备好给大家解释一下这个正确答案了吗？
____ you ____ to explain the ____ answer
四、阅读理解。
Look at the centre circles of Diagram (图) A and Diagram B. Which of the centre circles looks larger
Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact, they are exactly the same size.
Then look at the picture on the left. What do you see A vase Or two faces Does the picture change quickly from one to the other again and again Maybe or maybe not, but you can never see them at the same time.
“What’s happening Is something wrong with my eyes ” You may wonder at what you see. Don’t worry. Here is how it goes:
When we look at things, our eyes send messages to our brains and then our brains interpret (解读) the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “visual illusion(视觉错误)”.
Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey, I Shrunk the Kids just make use of illusions.
( )1. Why does the centre circle in Diagram A look smaller than that in Diagram B
A. Something is wrong with our eyes.
B. The two circles are not the same size.
C. Our brains interpret the information in a wrong way.
D. The two pictures change quickly from one to the other.
( )2. What’s the right order according to the passage
a. We look at things with our eyes.
b. Our brains interpret the messages.
c. Our brains tell us what we have seen.
d. Our eyes send messages to our brains.
A. a—c—d—b B. c—a—b—d C. a—d—b—c D. b—c—a—d
( )3. What do movie makers make use of visual illusions for
A. To help the actors look better.
B. To make the actors much braver.
C. To help the actors become stronger.
D. To make the actors seem different in size.
( )4. In the picture on the right, it seems that Line AB is shorter than Line CD, but in fact Line AB is as long as Line CD. Which paragraph can explain what has happened to our eyes
A. The second one. B. The third one.
C. The fifth one. D. The sixth one.
( )5. Which magazine is the text probably taken from
A. Art World
B. Amazing Science
C. Health and Medicine
D. Daily News
参考答案
一、1.B　2.A　3.B　4.D　5.B 6. D　7. C　8.D 9. C　 10. A
二、1.pour　2.conclusion　3.called　4.possibly 5. raincoats
三、1.scientific knowledge　2.turned; upside down 3. take; off 　
4.discovered/found; pressure 5. Are; ready; correct
四、1. C 2. C 3. D 4. C 5. B
Lesson 26 Keep the Candle Burning
一、单项选择
1. He offered ____ lighter and passed it to me.
A. a B. an C. any D. /
2. Our reading club shares ideas with each other ____ one hour every Tuesday.
A. to B. on C. at D. for
3. ____ of the students in Class 6 have lunch at school.
A. Two fifth B. One thirds C. Three fifth D. Three quarters
4. —Who does homework ____,Tom，Jack or Bill —Bill.
A. more carefully B. more careful
C. most carefully D. most careful
5. Don't keep the water ____ when you don't use it. We should save water.
A. run B. runs C. running D. to run
6. The medical team ____ ten doctors.
A. makes up B. makes up of
C. is made up D. is made up of
7. He told the interviewer that he had run_out_of money to buy old bikes.
A. put away B. turned off C. taken out D. used up
8. Tom knew nothing ____ his friend told him.
A. because B. until C. since D. if
9. He stood quietly and ____ the cigarette.
A. lights B. lights up C. lit up D. lighted with
10. —____ is it from your home to school
—It's about ten minutes' walk.
A. How long B. How far C. How many D. How much
二、连词成句(每小题均有一处词形转化)
1. the, candle, look at, burn
__________________________________________________________.
2. very, the book, interest, is
_________________________________________________________.
3. some, you, candles, see, can
___________________________________________________________
4. happen, you, last week, what, to
____________________________________________________________
5. seldom, people, use, now, match
___________________________________________________________.
三、根据短文内容及所给提示，补全文中单词或用所给单词的正确形式填空
One day, my grandfather was badly ill. He had a s____1 breathing. My father quickly called 120 and he was sent to hospital. The doctors first gave him o____2 to save his life. Then he was ____3(examine) carefully. After the doctors' efforts, he was ____4(full) recovered. Now he is s____5 enough to do many things. He says that exercise is the best way to keep healthy.
四、阅读理解。
If I ask you to shut your eyes and give you a piece of apple to eat, would you be able to tell me what it is just by tasting it Of course, you could. Your tongue is covered with tiny “taste buds” which help you know what different foods taste like. Do you know that foods would taste different if you did not have a nose This experiment shows how important your nose is when you taste things.
What You Need:
a friend to help
small pieces of any food like carrot, orange and banana
small pieces of apple, raw (生的) potato, and onion
What You Do:
There are actually three different experiments. You and your friend should take turns to try them on each other.
Experiment 1:
Have your friend close her eyes and open her mouth.
Give her a piece of the food and ask her to taste it.
Then, ask her what she thinks it is. She will probably guess correctly.
Experiment 2:
While your friend has her eyes closed, give her a piece of the raw potato. At the same time, hold a piece of apple right under her nose. Ask her to eat the potato (but don’t call it by name) and tell you what she thinks it is. She will say it is a piece of apple!
Experiment 3: (for the brave)
Take a piece of raw onion. You don’t have to close your eyes this time. Squeeze your nose closed with your other hand so that no smells can get into your nose. Now take a nibble of the onion. Surprise! As long as you hold your nose, you will not be able to taste the onion.
The Science Secret
You already know the science secret. Your nose and your tongue work together to make food taste the way it does. Your tongue, however, can taste only certain flavours like salty, bitter, sour and sweet. All of the other “tastes” are actually “smells”, and you need your nose to “taste” them. Oh, and you might use this science secret the next time you are told to eat something you don’t like the taste of. If you hold your nose while you eat it, you won’t “taste” it at all.
( )1. According to this article, what could a reader know about food
A. People hold their noses to eat onions.
B. If you can smell potatoes, you will taste apples.
C. People need a sense of smell to taste some food.
D. If you close your eyes, food will taste better.
( )2. What is the most likely reason why Experiment 3 is called “for the brave”
A. You keep your eyes open.
B. You have to eat a raw onion.
C. You have to squeeze your nose.
D. You do the experiment alone.
( )3. What’s the best title of the passage
A. Your Eyes Know
B. Your Nose Knows
C. Your Mouth Knows
D. Your Tongue Knows
参考答案
一、1.A　2.D　3.D　4.C　5.C　6.D　7.D　8.B　9.C 10. B
二、1.Look at the burning candle
2. The book is very interesting
3. Can you see any candles
4. What happened to you last week
5. Now people seldom use matches
三、1.shallow　2.oxygen　3.examined　4.fully　5.strong
四、1. C
2. B
3. B
Lesson 27 Planet Danny
一、单项选择
1. —My mobile phone doesn't work, but I can't find a shop to repair it.
—Oh, let me show you ____ near our school.
A. that B. those C. it D. one
2. When James arrived at the railway station, he tried to look ____ a place to park his car.
A. after B. at C. up D. for
3. —How do you like the novel
—I think it's well worth ____.
A. read B. to read C. reads D. reading
4. You can't pass the exam ____ you study hard.
A. if B. as C. for D. unless
5. —When will your new book ____？
—It has not been decided yet.
A. find out B. come out C. look up D. set up
6. ____he is tired, he doesn't want to stop.
A. Because B. Since
C. Even though D. As if
7. —I want to put up the picture on the wall. Would you mind helping me with it
—____. With pleasure.
A. Of course B. Certainly not
C. You'd better not D. Thanks a lot
二、用所给词的适当形式填空
1. ____(actual), he is an honest boy.
2. He is ____(look) outside through the window.
3. Would you love ____(join) us, Tina
4. We can't see ____(some) stars in the day.
5. When he ____(come) back, I'll tell him the news.
三、阅读理解。
If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet (慧星).
A comet sometimes looks like a star. Like a planet, a comet has no light of its own. It shines from the sunlight it reflects (反射). Like the earth, a comet goes round the sun, but on a much longer path than the earth travels.
If a comet isn’t a star, what is it then
Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. When sunshine melts (融化) the ice in the comet, great clouds of gas go trailing after it. These clouds, together with the dust, form a long tail.
Many people perhaps have seen a comet. However no one knows how many comets there are. There may be millions of comets, but only a few come close enough for us to see.
An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky. Some comets move out of our sight and never come back. Others keep coming back at regular times. A big comet that keeps coming back was named after Halley because he was the one who worked out when it would come back again. Maybe you have ever seen Halley’s Comets because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley’s Comets when it comes near the earth again.
( )1. A comet is like _______.
A. sun B. moon C. sunlight D. the earth
( )2. A large part of a comet is _______.
A. water and rock
B. water frozen into pieces of ice and mixed with iron
C. ice, iron and rock dust
D. only a few big pieces of rock
( )3. Some comets keep coming back _______.
A. at any time B. at noon C. at regular times D. at daytime
参考答案
一、1.D　2.D　3.D　4.D　5.B　6.C　7.B
二、1.Actually　2.looking　3.to join　4.any　5.comes
三、1. D
2. C
3. C