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The following chart(表) shows some information about the stud

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The following chart(表) shows some information about the student’s after-school activities in a middle school. 100% means all the students, 51%—99% means most students, 1%—50% means some students and 0% means no students.
Frequency(频率)
of  Activity
Every day
Once or twice a week
Three or four times a
week
Do housework
5%
75%
20%
Exercise
25%
10%
65%
Surf the Internet
15%
75%
10%
小题1:This chart is about the ______ of the students in a middle school.
A.numbers
B.lessons
C.hobbies
D.after-school activities
小题2: _________ of the students can take enough(足够的) exercise during the week.
A.65% B.25% C.10% D.75%
小题3: If there’re fifty students doing housework every day, there will be ________students surf the Internet every day.
A.100 B.50 C.150 D.250

小题1:D
小题2:A
小题3:C  

小题1:细节理解题,根据文中语句“The following chart(表) shows some information about the student’s after-school activities in a middle school.”理解可知。
小题2:细节理解题,根据文中语句“
Exercise
25%
10%
65%
”理解可知。
小题3:理解计算题,根据文中语句“每天做作业的学生数量是每天上网的学生数量的3倍,”理解可知。故3*50=150