试题与答案

已知:函数f(x)=4-x+lg(3x-9)的定义域为A,集合B={x|x-a<

题型:解答题

题目:

已知:函数f(x)=
4-x
+lg(3x-9)的定义域为A,集合B={x|x-a<0,a∈R}
(Ⅰ)求函数f(x)的定义域;
(Ⅱ)求A∩B.

答案:

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A 题目分析:本题考查非谓语动词。考查方式为识别是否适用非谓语动词。根据上下文可知,后面提供了两个从句,一个为条件状语从句、另一个为时间状语从句的省略句,由此可知,在某条件下和某时间,建议某人做某事...

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B.带电小球的电势能增加mgL(1+cotθ)

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题型:阅读理解

第三部分:阅读理解(共20小题; 每小题2分, 满分40分)

Everyone likes to feel that he or she is special.

Unfortunately, many of us grow up believing that we’re not special at all. We wish that we could be better at sports or more attractive. We wish we had nicer clothes or more money. Like the Scarecrow, the Tin Man, or the Cowardly Lion from The Wizard of Oz (《绿野仙踪》), we believe we’re not good enough just as we are. In the movie, the Scarecrow wishes that he had a brain. The Tin Man wishes he had a heart, and the Lion wants courage. In the end, each of them realizes that he already has what he needs.

Most parents want us to be the best we can be. They sometimes try to encourage us to do better by comparing us to others. They mean well, but the message we often get is that we’re not good enough. We begin to believe that the only way we can be special is by being better than someone else, but we are often disappointed. There will always be someone out there who is better than we are at something. There are plenty of people around who may not be as smart as we are but who are better at sports. Or they may not be as good-looking, but they have more money. It is impossible for us to be better than everyone else all the time.

Like the Scarecrow, the Tin Man, and the Cowardly Lion, we all want what we believe will make us better people. What we don’t realize is that often we already have inside us the very things that we seek. Parents sometimes forget to tell us that we are special, that we are good enough just as we are. Maybe no one told them that when they were growing up, or maybe they just forgot. Either way, it’s up to us to remind them from time to time that each of us, in our own way, is special. What we are ... is enough.

56. This passage is most likely written by a ______.

A. teenager     B. parent C. teacher       D. coach

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A. compare their children with others now and then

B. give no pressure to their children 

C. remind their children frequently they are special

D. praise their children too much

58. By discussing the characters in The Wizard of Oz, the author mainly wants to show ______.

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59. What does the author of this passage believe?

A. Not everyone can be special.                 

B. Smart people are more special than others.

C. The richer you are, the better you are.           

D. We are all good enough just the way we are.

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