《2025年快乐过暑假江苏凤凰科学技术出版社五年级提优版》

五 解决问题。
王师傅把一根8米长的木料锯成10段,每次锯完再锯下一段,每次锯的时间相等。王师傅把这根木料锯成5段所用的时间是锯成10段的几分之几?

答案： $10-1=9$(次)$5-1=4$(次)$4÷9=\frac {4}{9}$

( )1. What is she doing? B
( )2. What is he doing? E
( )3. How many flowers does he have? C
( )4. How many flowers are there? D
( )5. What are you doing? A
( )6. Are they cleaning the table? F

答案： 1. B 2. E 3. C 4. D 5. A 6. F

It's eleven o'clock in the morning. Some children are in the kitchen.
A: What's Mike doing?
B: 1. E He is good at cooking.
A: 2. A
B: Liu Tao is.
A: Is Wang Bing helping?
B: 3. C He is washing dishes.
A: 4. D
B: She is washing vegetables.
A: Are the children happy?
B: 5. F They have a lot of fun.

答案： 1. E 2. A 3. C 4. D 5. F