Do you think backpacks are important for students？You may say yes.With backpacks，we carry books，water bottles，pencil boxes and other school things.But more and more schools in America are banning（禁止） backpacks in the classroom now.Here are some reasons（理由）.
   Students may bring something useless and dangerous to school.They may put phones into their backpacks.They may carry snacks.And some of them may bring something dangerous like knives.To deal with these problems，some schools make a rule — No backpacks in classroom.
   Students' backpacks take up much space（空間） in the classroom.Because of them，the classrooms are always crowded.Students with backpacks double the space they take.Without backpacks，the classroom will be less crowded，cleaner and tidier.
   Heavy backpacks are not good for students.Some backpacks are big and huge.If a student carries a heavy backpack，he or she may have problems in the neck，back and shoulders.A large number of schools ban the use of backpacks to help students keep healthy.
   With the rule，students don't carry backpacks during school hours.They need to keep them in lockers（儲物柜）.Do students like such a rule？
   "Without a backpack，it's hard for me to take so many things with my hands，such as textbooks，a water bottle，a pencil bag and more，" Amelia said. "I keep losing things，like my cards，" 7th grader Nick said. "I'd like to keep my backpack because my locker isn't close to my classroom." Said Kemezis.
（1）The writer starts the passage by

C

C

.
A.telling a story
B.giving reasons
C.asking a question
（2）The underlined word "double" in paragraph 3 means

B

B

.
A.折疊
B.加倍
C.壓縮
（3）What can we infer（推斷） from the passage？

C

C

A.Students' school life gets easier without backpacks.
B.Students will have health problems if they carry backpacks.
C.Lockers cannot replace（代替） backpacks at school.
（4）Which of the following best shows the structure（結(jié)構(gòu)） of the passage？

A

A

A.
B.
C.
（5）What's the writer's attitude（態(tài)度） to banning backpacks in the classroom？

C

C

A.Agree.
B.Disagree.
C.Not sure.