内容正文:
Unit 2 Amazing numbers
Section 2 同步练
班级:________ 姓名:________ 得分:________
一、选词填空(共 10 小题,每小题 1 分,满分 10 分)
从方框中选择合适的词,并用其正确形式填空。
hundred, thousand, million, billion, one, two, three, five, eight, twelve
1. There are three ____________ people in the small town.
2. The river is about one ____________ kilometres long.
3. The Nile River is the ____________ longest river in the world.
4. Mount Qomolangma is the ____________ highest mountain in Asia.
5. The ____________ day of a week is Monday.
6. There are ____________ months in a year.
7. The ____________ month of the year is August.
8. Three ____________ and seventy-five is 375.
9. One ____________ is 1,000,000.
10. The ____________ day of the month is 5th.
二、词形转换(共 10 小题,每小题 1 分,满分 10 分)
根据句子意思,用括号中所给单词的适当形式填空。
1. There are two ____________ (hundred) students in Grade 8.
2. The Yangtze River is the ____________ (three) longest river in the world.
3. December is the ____________ (twelve) month of the year.
4. The ____________ (five) day of the week is Thursday.
5. Mount Qomolangma is 8,848.86 metres ____________ (high).
6. The ____________ (one) lesson today is English.
7. There are over 7 ____________ (billion) people in the world.
8. The ____________ (two) highest mountain in the world is Mt. Qogir.
9. There are ____________ (thousand) of stars in the sky.
10. My birthday is on the ____________ (eight) of June.
三、阅读理解 A(共 4 小题,每小题 2.5 分,满分 10 分)
阅读短文,选择最佳答案。
Amazing Numbers in Nature
Numbers are everywhere in nature, and they help us understand the world better. Let’s look at some amazing facts about rivers and mountains.
The Nile River is the longest river in the world. It is about 6,671 kilometres long and runs through Africa. The Amazon River is the second-longest, at 6,480 kilometres, in South America. The Yangtze River in Asia is the third-longest, with a length of 6,300 kilometres.
Mountains also have amazing numbers. Mount Qomolangma is the highest mountain in the world, at 8,848.86 metres. It is in Asia. The second-highest mountain is Mt. Qogir, at 8,611 metres, also in Asia. In North America, the highest mountain is Mt. Denali, which is 6,190 metres high. In Africa, the highest mountain is Mt. Kilimanjaro, at 5,895 metres.
These numbers help scientists compare and learn about our planet. They are not just numbers—they tell stories about the Earth!
1. Which is the longest river in the world?
A. The Amazon River
B. The Nile River
C. The Yangtze River
D. The Yellow River
2. How long is the Yangtze River?
A. 6,671 km
B. 6,480 km
C. 6,300 km
D. 6,190 km
3. What is the height of Mt. Qomolangma?
A. 8,611 m
B. 8,848.86 m
C. 6,190 m
D. 5,895 m
4. Which mountain is the highest in Africa?
A. Mt. Kilimanjaro
B. Mt. Kenya
C. Mt. Stanley
D. Mt. Denali
四、完形填空(共 10 小题,每小题 1 分,满分 10 分)
阅读短文,从 A、B、C、D 四个选项中选择最佳答案。
Numbers are very important in our lives. We use cardinal numbers to count things and ordinal numbers to show order. Let’s learn about some amazing facts with numbers.
The Nile River is the 1_______ longest river in the world. It is about 2_______ kilometres long. The Yangtze River is the 3_______ longest river in Asia. It is about 4_______ kilometres long. Mount Qomolangma is the 5_______ highest mountain in the world. It is 6_______ metres high.
There are 7_______ months in a year. The 8_______ month is December. A week has 9_______ days. The 10_______ day of the week is Sunday in many countries.
1. A. one B. first C. two D. second
2. A. 6,671 B. 6,480 C. 6,300 D. 8,848
3. A. three B. third C. five D. fifth
4. A. 6,671 B. 6,480 C. 6,300 D. 5,895
5. A. one B. first C. two D. second
6. A. 8,611 B. 8,586 C. 8,848.86 D. 6,190
7. A. ten B. twelve C. twenty D. thirty
8. A. twelve B. twelfth C. one D. first
9. A. five B. six C. seven D. eight
10. A. one B. first C. two D. second
五、五选四(共 4 小题,每小题 2.5 分,满分 10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。
Numbers help us describe the world. 1_______. We use cardinal numbers to count things, like “three rivers” or “ten mountains”. 2_______, like “the first river” or “the second mountain”.
The Nile River is the longest river in the world. 3_______. The Yangtze River is the third-longest river. 4_______. These numbers help us understand how long or high things are.
A. We use ordinal numbers to show order
B. It is about 6,671 kilometres long
C. It is about 6,300 kilometres long
D. They come in two main types: cardinal and ordinal
E. Numbers are not useful in science
参考答案
一、选词填空
1. hundred
2. thousand
3. first
4. first
5. second
6. twelve
7. eighth
8. hundred
9. million
10. fifth
二、词形转换
1. hundred
2. third
3. twelfth
4. fifth
5. high
6. first
7. billion
8. second
9. thousands
10. eighth
三、阅读理解 A
1. B
2. C
3. B
4. A
四、完形填空
1. B
2. A
3. B
4. C
5. B
6. C
7. B
8. B
9. C
10. B
五、五选四
1. D
2. A
3. B
4. C
学科网(北京)股份有限公司
$