试题与答案

已知a与b互为相反数(且a≠b),c与d互为倒数,|x|=2,求(a+b+cd)

题型:解答题

题目:

已知a与b互为相反数(且a≠b),c与d互为倒数,|x|=2,求(a+b+cd)x+
a
b
的值.

答案:

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题型:阅读理解

Zhou Yan, a Junior 3 student, wishes he never got a mobile phone. Last week, he went to see a doctor because his arms and fingers were injured. The doctor told him that he had “mobile phone disease”. A growing number of teenagers are getting “mobile phone disease” because more of them are using mobile phones.

Zhou got his mobile phone five months ago. He sent messages to his friends with it all the time, even when going to bed. Zhou started to do badly in the exams because he spent so much time playing with his mobile phone. His mother got very angry with him. He didn’t stop playing with the mobile phone until his arms got injured.

Yang Ling,a doctor, says that if someone uses his mobile phone too much, like Zhou Yan, he might get “mobile phone disease’. If teenagers find their arms or fingers hurt, they should go to see a doctor as soon as possible. Yang Ling said students should try to use their mobile phones less,especially at school.

小题1:Zhou Yan wishes he never got a mobile phone because____.

A.it is useless to him

B.it doesn’t work well

C.it made his arms hurt

D.his mother got angry with him小题2:Zhou Yan didn’t do well in exams because______.

A.he didn’t like studying

B.he was ill and didn’t go to school

C.he was afraid of exams

D.he spent much time on the mobile phone小题3:If someone has “mobile phone disease”, it means_______.

A.the mobile phone brought him a disease

B.something is wrong with his mobile phone

C.he can’t live without the mobile phone

D.he hates the mobile phone very much小题4:Yang Ling thinks students should_______

A.go to see a doctor very often

B.use mobile phones more when they are out of school.

C.use mobile phones less.

D.not use mobile phones anymore小题5:The writer want to tell us___ in the article. 

A.using mobile phones too much is bad for our study and health

B.only a few teenagers have mobile phones

C.mobile phones can help students get out of trouble

D.people shouldn’t use mobile phones

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