《2025年快乐过暑假江苏凤凰科学技术出版社五年级提优版》

四 解决问题。
甲、乙两名同学绕环形跑道跑步,甲跑完一圈要1分钟,乙跑完一圈要1分钟30秒。现在两人同时从同一地点出发,同向而行,几分钟后,两人又在出发地会合?这时他们各跑了多少圈?

答案： 1分钟=60秒 1分钟30秒=90秒 60和90的最小公倍数是180 180秒=3分钟 3分钟后,两人又在出发地会合。甲：180÷60=3(圈) 乙：180÷90=2(圈)

(T)1. chair teach (F)2. school March
(F)3. Christmas Chinese (T)4. bring evening
(T)5. chicken kitchen (T)6. sing sitting

答案： 1. T 2. F 3. F 4. T 5. T 6. T

(B)1.Everyone ______ the teacher in the classroom now.
A.listen to
B.is listening to
C.are listening to

答案： B

(C)2.—What ______ Helen with her parents ______ now?
—They ______ in the supermarket.

A.are;doing;are shopping
B.is;doing;shop
C.is;doing;are shopping

答案： C

(C)3.______ your mother busy ______ housework at weekends?
A.Do;for
B.Does;with
C.Is;with

答案： C

(C)4.My sister likes ______. She ______ in the Art room now.
A.drawing;draws
B.draws;draws
C.drawing;is drawing

答案： C

(C)5.It's twelve o'clock. The students ______ in the canteen(食堂).
A.have the lunch
B.are having the lunch
C.are having lunch

答案： C

1. 某小组成员使用三张边长为14厘米的正方形铝箔纸,按下图所示,分别制成三艘不同的小船,该小组想研究的是(B)。

A.小船的载重量与船身高度的关系
B.小船的载重量与船的体积大小的关系
C.小船的载重量与船的底面积大小的关系

答案： B