1. 填空
(1)保留( )位小数,表示精确到十分位.
(2)保留三位小数,表示精确到( )位.
(3)把1520000改写成“万”作单位的数是((4)1亿=( )
(5)3.995≈4.00,表示精确到( )位.
2. 判断(对的打“√”,错的打“×”)
(1)准确数大于近似数. ( )
(2)近似数2.0和近似数2一样大. ( )
(3)7.295保留两位小数后是7.3. ( )
(4)351000000元≈3.5亿. ( )
(5)8.856近似于自然数9. ( )
3. 把下面各小数四舍五入
).
(1)精确到十分位:1.04 3.45 6.96
(2)精确到百分位:0.372 10.503 9.495
4.(1)把315000改写成用“万”作单位的数,再保留整数.
(2)把1927600000吨改写成用“亿吨”作单位的数,再保留两位小数.
参考答案
1.(1)一 (2)千分 (3)152万 (4)100000000 (5)百分
2.(1)× (2)√ (3)× (4)× (5)√
3.(1)1.0 3.5 7.0
(2)0.37 10.50 9.50
4.(1)31.5万≈32万 (2)19.276亿吨≈19.28亿吨
1. 把下列小数精确到十分位。
9.46≈( ) 15.788≈( ) 26.07≈( ) 0.991≈( )
2. 把下列小数精确到百分位。
24.189≈( ) 0.0794≈( ) 3.922≈( ) 2.1873≈( )
3. 先把下列各数改写成用“万”作单位的数,再把结果保留一位小数。
(1)450600=( )万≈( )万 (2)1376500=( )万≈( )万
4. 先把下列各数改写成用“亿”作单位的数,再把结果保留两位小数。
(1)1485600000=( )亿≈( )亿 (2)46090000=( )亿≈( )亿
5. 在() 里填上“=”或“≈”。
795000 ()79.5万 51805000 ()1亿
1806300000() 18.1亿 6704000() 670万
6. 一个两位小数,用四舍五入法保留整数约是10,这个两位小数最大是多少?最小是多少?
7. 填空。
9.959 10.059 3.055
保留整数_________
保留一位小数_________
精确到百分位_________
8. 把横线上的数先改写成用“万”作单位的数,再保留两位小数。
(1)2011年,我国大约生产轿车4912430辆。_________
(2)上海明珠1号轻轨线全长约24975米。_________
9. 把横线上的数先改写成用“亿”作单位的数,再保留一位小数。
(1)2011年,我国生产原煤约2793000000吨。_________
(2)冥王星离太阳的平均距离大约是49967000000千米。_________
10. ()中可以填哪些数字?
(1)9. ()875≈10,()中可以填________________。
(2)3.4()9≈3.4, ()中可以填________________。
(3)2.7()≈2.8,()中可以填________________。
0.15千克=( )克 3.001吨=( )吨( )千克
3.7平方分米=( )平方毫米 5.80元=( )元( )角
( )分米=1.5米 ( )吨( )千克=4.08吨
510米=( )千米 5米16厘米=( )米
5千克700克=( )千克 0.95米=( )厘米
4700米=( )千米 3650克=( )千克
40.06吨=( )千克 1.4平方米=( )分米
360平方米=( )公顷 7.05米=( )米( )厘米
5.45千克=( )千克( )克
3千米50米=( )千米 ( )时=30分
3千克500克=( )千克 ( )时=2时45分
2.78吨=( )吨( )千克
0.25时=( )分
504厘米=( )米
4.2米=( )米( )厘米
10米7分米=( )米
0.06平方千米=( )公顷
9千克750克=( )千克
8.04吨=( )吨( )千克
6.24平方米=( )平方分米
4千克=( )克 6000克=( )千克
( )克=5千克 10千克=( )克
7千克=( )克 2000克=( )千克
1千克=( )克 9000克=( )千克
1吨=( )千克 ( )吨=3000千克
8000千克=( )吨 40吨=( )千克
3千克=( )克 50000克=( )千克
4吨=( )千克 5000克=( )千克
( )t=3000kg 5000g=( )kg
9000kg=( )t 16t=( )kg
3000千克-2000千克=( )吨
1吨-300千克=( )千克
3米=( )厘米 7000克=( )千克
3时=( )分 6分15秒=( )秒
5400千克=( )吨( )千克 5米6分米=( )分米
240分=( )时 6时35分=( )分
75分=( )时( )分 180秒=( )分
1时=( )分 1时40分=( )分
80秒=( )分( )秒 1分8秒=( )秒
一、用所给词的正确形式填空
二、1. We often___________(play) on the playground.
三、2. He _________(get) up at six o’clock.
四、3. __________you _________(brush) your teeth every morning.
五、4. What____ (do) he usually _____(do) after school?
六、5. Danny _______(study) English, Chinese, Maths, Science and Art at school.
七、6. Mike sometimes __________(go) to the park with his sister.
八、7. At eight at night, she ________(watch) TV with his parents.
九、8. ________ Mike________(read) English every day?
十、9. How many lessons ______your classmate____(have) on Monday?
十一、10. What time ____his mother_________(do) the housework?
十二、11. He often ______(have) dinner at home. 12.Daniel and Tommy___ (be) in Class One.
十三、13. We____ (not watch) TV on Monday. 14. Nick _____(not go) to the zoo on Sunday.
十四、15. They______ (like) the World Cup? 16. What ____they often ____(do) on Saturdays
十五、17. Your parents________ (read) newspapers every day?
十六、18. The girl______ (teach) us English on Sundays.
十七、19. She and I _______(take) a walk together every evening.
十八、20. There_______ (be) some water in the bottle. 21. Mike ______(like) cooking.
十九、22. They_______ (have) the same hobby. 23. My aunt______ (look) after her baby carefully.
二十、24. You always____ (do) your homework well. 25. I_____ (be) ill. I’m staying in bed.
二十一、26. She_____ (go) to school from Monday to Friday. 27. Liu Tao _____(do) not like PE.
二十二、28. The child often______ (watch) TV in the evening.
二十三、29. Su Hai and Su Yang ______(have) eight lessons this term.
二十四、30. -What day ______(be) it today? - It’s Saturday.
二十五、31. Don’t make a noise. Grandpa __________(sleep).
二十六、32. Tom’s family__________(watch) TV.
二十七、33. It ________(take) me two hours to finish my homework last night.
二十八、34. What ______ your mother _______(do) every evening? She _______(wash) clothes.
二十九、35. _______ it ______ (rain)every day?
三十、36. What _______(do) you _______ on Sundays ? We ________ (play) football.
三十一、37. There ________ (be) a football match on TV every morning.
三十二、38. They often ________ (visit) the Great Wall.
三十三、39. Who _______ (dance) the best in your class?
三十四、40. He _____________ (not come).
三十五、41. The earth __________ (move) round the sun.
三十六、42 She ________ (buy) a sweater.
三十七、43. Mr. Wang often______( go) to Shanghai.
一、用have 、has、 do 、does 填空
1. I_____ a good father and a good mother.
2. My father _____ a story-book.
3. She _____some dresses.
4. What do you _____ ? I _____a nice ball.
5. What does Mike _____ ? He _____ a model plane.
6. My parents_____some nice pictures.
7. Our teacher _____ an English book.
8. Their parents _____ some boxes
9. David’s friends _____ some soccer.
10. David_____ a basketball
11.David’s friend _____five toy cars.
12. The girl _____ milk and bread for breakfast, but Jim ____some coffee for it.
13. Who_____a volleyball? David ____ .
14. What_____ Helen _____ ? She _____a gold fish.
15. What toys _____ you _____?你有什么玩具?
I _____ a toy bear.我有一个玩具熊。
16. _____you _____any toy cars ? 你有玩具小汽车吗?
-No, I _____.but Ben _____some. 不,我没有。但是本有一些的。
17. Who _____a towel ? I_____one. 谁有毛巾?我有一块。
18.Yang Ling_____a model plane,but she_____two toy tigers.
There be 句型专项练习
一、 用be的正确形式填空
1. There _________ a piano against the wall.
2. There _________ some flowers on the desk.
3. There _________ some tea in the cup.
4. There _________ two tins of coke in the bag.
5. There _________ three buildings and a beautiful garden in our school.
6. There _________ some meat, some bread and some apples on the table.
7. There _________ a picture and a clock on the wall.
8. How many kinds of animals ________ there in this area?
二、 按要求进行句型转换
1. There are some kites on the wall.(改为否定句)
_________________________________________________________
2. There is some rice in the bag.(改为一般疑问句)
_________________________________________________________
3. There are forty-eight pupils in Miss Guo's class.(对画线部分提问)
_________________________________________________________
5. His uncle has some new story-books.(改为一般疑问句)
___________________________________________________
6、 There is a woman near the house.(变复数)
_________________________________________________
7、 There are some buses near the hill.(变单数)
____________________________________________________
8、 There are some apples on the tree.(变一般问句)
______________________________________________________
9、 There are some oranges in the glass.(变否定句)
_______________________________________________________
10、 Is there a baby in the room?(变复数)
_____________________________________________________
11、 There are many beautiful flowers in the garden. (就划线部分提问)
___________ ___________ in the garden?
12、There is a bookcase in my study. (变一般问句)
________ _________ ________ ________ in your study?
13、There is a soccer ball and a basketball on the floor.
___________ __________ on the floor?
14、My new dress is in the wardrobe.
_________ ___________ your new dress?
15、There are some big trees behind my house.
_________ __________ _________ big trees?
因篇幅问题不能全部显示,请点此查看更多更全内容