问题 选择题
在干燥的日子,当我们用塑料梳梳头时,常常会发出劈啪的微弱声,这种现象的原因是(  )

A.接触起电

B.摩擦起电

C.感应起电

D.总电量增加

答案

答案:B

单项选择题
阅读理解

阅读理解

     "Hey, Jenna, do you think we'll still be friends when we're eightytwo?" I asked my friend.

While I waited for Jenna to answer, I started wondering what life would be like without her.

     Suddenly, my thoughts were interrupted. "Of course, we'll still be friends when we're

eightytwo," Jenna announced loudly.

     The next year, in fourth grade, we met Jamie. Since she lived in the same neighborhood as

Jenna and me, the three of us soon clicked into a really tight group of friends. Things couldn't

have been better, and I thought even time couldn't pull us apart, but that is where I was sadly

mistaken.

     The three of us started fighting a lot-and not just small fights where your friend won't return

a CD you let her borrow. Before Christmas, we had a really big fight.  They both said I was

bossy and couldn't keep my mouth closed. I felt helpless and alone.

     I was surprised when Jenna came to my house and gave me a nice Christmas card she had

made for me. I was so sure that she was still disappointed with me, but now I was getting a

really nice card that she even made herself.

     "Wow," I said, breaking the silence as we stood on either side of my front door. "Thanks."

     "Okay... well... I have to go," she said softly.

     The card started off with  "Merry Christmas", but then, farther down the page, it said,  "I am

so glad we're friends. I am sorry about what I said when we were fighting. A fight won't stop us

from being friends. Besides, we said we were going to be friends even when we're eightytwo."

1. Before fourth grade, the author and Jenna________.

A. were strangers

B. were close friends

C. often fought with each other

D. didn't get along well with each other

2. Jenna and Jamie thought the author________.

A. looked after them very well

B. often cheated them

C. didn't help them

D. often ordered them about

3. Why did the author feel surprised when she received a nice Christmas card from Jenna?

A. Because Jenna had never sent her such a nice card before.

B. Because she never thought Jenna still regarded her as a close friend.

C. Because she thought Jenna would come to fight with her again.

D. Because Jenna didn't return her the CD she had borrowed.

4. After the Christmas, the author and Jenna would ________.

A. lose touch with each other

B. go on fighting with each other

C. not speak to each other

D. be close friends again