留学群七年级暑假学与练

留学群专题频道七年级暑假学与练栏目,提供与七年级暑假学与练相关的所有资讯,希望我们所做的能让您感到满意!

七年级暑假学与练完整答案

 

  七年级暑假学与练完整答案包括语文、数学、英语、科学四部分。

  暑假学与练数学(七年级)参考答案

  (一)

  1. 气球下降6米 2. 0,0 3. -3,3,3 4. 5,-4,0 5. >,<,= 6. 0

  7. 36 8. 略 9. B 10. B 11. C 12. B 13. 正整数:10,+68;负整数:-20;正分数:0.22,+9.78,0.3,+ ;负分数:-2.5, ;正有理数:10,0.22,+9.78,+68,0.3,

  + ;负有理数:-2.5, ,-20 14. 数轴略,-3 <-|-2|<0<-2.5的相反数<4

  15. (1) 4,6,-4 (2) 略 16. 2009

  (二)

  1. (1) -6 (2) -4 2. -9+2-7-5+4 3. 5 4. -10 5. A 6. D 7. A

  8. (1) -30 (2) -3.5 (3) 19 (4) -2 9. ±2,±14 10. (1) 9

  (2) -498,4,506 11. (1) 略 (2) π-3.14 (3)

  (三)

  1. (1) 18 (2) 28 (3) -72 (4) 0 2. 略 3. 0 4. D 5. D 6. C

  7. (1) 2 (2) 2 (3) 6 (4) 0 8. 略 9. (1) <,<,>,>,>

  (2) nn+1<(n+1)n(0(n+1)n(n>2) (3) >

  (四)

  1. -2,2,4 2. 2,2,-4 3. 0 4. 千,3 5. D 6. C 7. C 8. D

  9. (1) 809.79 (2) 0.083 (3) 5480万 (4) 9.7×107 10. (1) -9 (2) 16

  (3) (4) (5) 72 (6) 11. 略

  (五)

  1. ,±6,±2 2. 13,- 3. 略 4. 5 5. D 6. B 7. C 8. D

  9. (1) ±4 (2) - 10. 0.491 11. =2秒,19.6÷340≈0.057秒,最后的结论由学生定 12. 略

  (六)

  1. 1.3m 2. 3. 略 4. 6x-4y,-a-b+c 5. a+d=b+c 6. -11 7. B

  8. C 9. B 10. (1) 0 (2) 17x-1 11. -6 12. (1) y=20.2x (2) 161.6元

  13. (1) 计时制:3x,包月制:50+1.2x (2) 3x=3×30=90元,50+1.2x=50+1.2×30=86元,所以包月制合算

  (七)

  1. x=2 2. 略 3. -1 4. -1 5. 4 6. C 7. B 8. D

  9. (1) x= (2) x=11 (3)...

七年级暑假学与练英语参考答案

 

  七年级暑假学与练英语参考答案

  (一)

  ▲用be动词的正确形式填空

  1. am 2. is 3. is 4. are 5. are 6. are 7. is 8. is 9. are 10. is ▲从Ⅱ栏中选择与Ⅰ栏各句相对应的句子

  1. E 2. G 3. A 4. C 5. F 6. I 7. H 8. D 9. J 10. B

  ▲按要求改写下列句子

  1. The children aren’t starting their lessons.

  2. We are having a class meeting now.

  3. Are you lying in the sun?

  4. He is swimming in the swimming pool now.

  5. Lucy often sends e?鄄mails to her friend.

  ▲完形填空

  1. B 2. D 3. C 4. C 5. A 6. B 7. A 8. C 9. B 10. B

  (二)

  ▲用适当的介词填空

  1. with 2. in 3. on 4. for 5. in 6. in 7. in 8. by 9. with

  10. on

  ▲根据汉语意思完成句子

  1. are getting ready for 2. What are, doing, are listening to 3. at work

  4. How many meals 5. moment, watching, at home

  ▲根据对话内容,用所给动词的正确形式填空

  1. speak 2. speaking 3. am writing 4. write 5. is 6. is washing

  7. washes 8. is dressing 9. will visit/is going to visit 10. are

  ▲阅读理解

  1. D 2. C 3. C 4. B 5. A

  (三)

  ▲根据要求写出下列单词的正确形式

  1. better 2. lying 3. twelfth 4. finally 5. lucky 6. worst 7. was

  8. done 9. beginning 10. invitation

  ▲用所给词的适当形式填空

  1. is running 2. do, have 3. is working 4. Is, cleaning 5. shopping

  6. getting 7. waters 8. are flying 9. photos 10. bring

  ▲找出句子中的错误并改正

  1. C, look at 2. C, swimming 3. C, hear...

暑假学与练数学(七年级)参考答案

 

  暑假学与练数学(七年级)参考答案

  (一)

  1. 气球下降6米 2. 0,0 3. -3,3,3 4. 5,-4,0 5. >,<,= 6. 0

  7. 36 8. 略 9. B 10. B 11. C 12. B 13. 正整数:10,+68;负整数:-20;正分数:0.22,+9.78,0.3,+ ;负分数:-2.5, ;正有理数:10,0.22,+9.78,+68,0.3,

  + ;负有理数:-2.5, ,-20 14. 数轴略,-3 <-|-2|<0<-2.5的相反数<4

  15. (1) 4,6,-4 (2) 略 16. 2009

  (二)

  1. (1) -6 (2) -4 2. -9+2-7-5+4 3. 5 4. -10 5. A 6. D 7. A

  8. (1) -30 (2) -3.5 (3) 19 (4) -2 9. ±2,±14 10. (1) 9

  (2) -498,4,506 11. (1) 略 (2) π-3.14 (3)

  (三)

  1. (1) 18 (2) 28 (3) -72 (4) 0 2. 略 3. 0 4. D 5. D 6. C

  7. (1) 2 (2) 2 (3) 6 (4) 0 8. 略 9. (1) <,<,>,>,>

  (2) nn+1<(n+1)n(0(n+1)n(n>2) (3) >

  (四)

  1. -2,2,4 2. 2,2,-4 3. 0 4. 千,3 5. D 6. C 7. C 8. D

  9. (1) 809.79 (2) 0.083 (3) 5480万 (4) 9.7×107 10. (1) -9 (2) 16

  (3) (4) (5) 72 (6) 11. 略

  (五)

  1. ,±6,±2 2. 13,- 3. 略 4. 5 5. D 6. B 7. C 8. D

  9. (1) ±4 (2) - 10. 0.491 11. =2秒,19.6÷340≈0.057秒,最后的结论由学生定 12. 略

  (六)

  1. 1.3m 2. 3. 略 4. 6x-4y,-a-b+c 5. a+d=b+c 6. -11 7. B

  8. C 9. B 10. (1) 0 (2) 17x-1 11. -6 12. (1) y=20.2x (2) 161.6元

  13. (1) 计时制:3x,包月制:50+1.2x (2) 3x=3×30=90元,50+1.2x=50+1.2×30=86元,所以包月制合算

  (七)

  1. x=2 2. 略 3. -1 4. -1 5. 4 6. C 7. B 8. D

  9. (1) x= (2) x=11 (3) x=0 (4) x= 10. (1) 3x=x+4 (2) x +3=x-2<...