问题 选择题
如图所示为一磁流体发电机示意图,A、B是平行正对的金属板,等离子体(电离的气体,由自由电子和阳离子构成,整体呈电中性)从左侧进入,在t时间内有n个自由电子落在B板上,则关于R中的电流大小及方向判断正确的是(  )

A.I= ,从上向下

B.I= ,从上向下

C.I= ,从下向上

D.I= ,从下向上

答案

答案:A

阅读理解

There are good Santas and there are bad Santas. The good Santas all realize one thing: In the mind of a child, Santa Claus is perfect.

That’s difficult. And so they come from around the world to attend the Charles W. Howard School in Midland, Mich. The school offers a three-day, 40-hour course for Santas hoping to be excellent. There’s a real range to what Santas earn, from big bucks for large events to no pay for charities. One thing for them all is a pure love for children.

A former Macy’s Santa named Charles Howard founded the Michigan school in 1937. “Many people will think if you have a suit and you’re a Santa,” said Tom Valent, the school’s current dean. “It’s more than that.” So with a pet reindeer, his properly named wife Holly and a workshop full of wonder.

The school teaches everything from breathing techniques for carol singing to the beard maintenance. There are lessons in child psychology, sign language and even media training for talk-show appearances and call-in shows. Santas also need to make sure they know all the names of the reindeer. What’s harder to deal with, however, is children who ask for Christmas gifts like bringing daddy home or making mommy happy again.

After spending time in the classroom, Weir went to the mall to test his training. However, at one point, his hat fell off, and he was unsure how to react. “You’re the real Santa,” Valent said. “Pick that hat up, slip it back on, keep smiling and do your job. You’ve got to stay on top of your game. Even the last one at night, when you’re tired, you’ve got to remember: This one’s forever, so do a good job.”

Notes:

①    charity  n. 慈善,慈善团体

②    reindeer  n. 驯鹿

小题1:According to the passage, good Santas should be the ones that ________.

A.can offer the children some gifts

B.help adults look after their children

C.have ability to make children happy

D.should be perfect in the mind of children小题2: The underlined words “big bucks” should refer to ________.

A.lots of money

B.many gifts

C.loves for children

D.gifts from children小题3: The Michigan school was founded by Charles Howard with the purpose to ________.

A.train the pet reindeer for the Santas

B.earned money from its students

C.train perfect Santas for the world

D.show the world’s concern to the poor小题4: According to Weir’s performance, we can conclude that ________.

A.Weir was short of experience

B.Weir was not fit for the job as a Santa

C.Weir did very badly in the game

D.Weir was not a good student in school

问答题 简答题