问题 单项选择题

磨机充填率表示磨矿介质在球磨机中所占有效()的百分数。

A.重量

B.容积

C.比重

答案

参考答案:B

填空题
根据短文内容,用方框中所给词语的适当形式填空,使文章通顺,完整。(每词限用一次)
child  time   in   good   ready  begin
pass  quickly  themselves  for  if  hard
Each year, thousands of Chinese middle school students go to study in foreign countries such as the U S, the UK, Australia and Japan.
"Chinese 小题1: hope very much to go abroad to get a wider view(视野) of the world," said Li Mingshan, a Chinese writer who has lived  小题2: America for many years. In a talk Li told more than 300 parents and their children that life in foreign countries can be  小题3:for young people. "They have to meet a culture shock and language problems.”
However, these are not the most difficult things. To most children, looking after 小题4:when studying alone in a foreign country is a big challenge(挑战).
Zhao Baohua, a 16-year-old student  小题5: to study in a high school in Australia las t October. To his surprise, his teachers there hardly pushed students to study. And usually there wasn't homework. "With these education systems, we have more free  小题6: and more space for thinking," said Zhao. "But  小题7: you don't know how to plan your time and money, you will not have an easy time." Some of his friends spent their whole year's money in the first two months of the term, and they didn't  小题8: their exams.
"Studying abroad at a young age can help students learn foreign languages  小题9:, but students and parents should know about the challenges," Li said. "If you want to study abroad, try to talk to someone with experience in foreign countries. Make sure that you are  小题10: for it. "
问答题

当旱季来临时,饮水成了所有动物最艰难的事情。食草动物和食肉动物都在四处寻觅着水源,终于,动物们找到了一个小小的湖。狮子最先赶到这里,喝完水后就离开了。斑马、羚羊、跳羚、猴子等陆续来到此地, (76) :湖中藏着许多鳄鱼,它们不敢袭击凶猛的狮子,但是别的动物都不是它们的对手。

岸上的动物又想喝水,又不敢轻易靠近。最先冒险的是勇敢的斑马,领头的一只试探着靠近湖水, (77) ,然后抬起头观察一下,再低头喝。接着其他斑马也鼓足勇气相继靠近,低头,饮水。突然,一只体格较弱的斑马被鳄鱼咬住了……

看着鳄鱼把那只斑马撕成了碎片,动物们惊恐万分,但是为了生存,它们却只能选择冒险。于是,羚羊、跳羚、角马等不间断地先后试探着靠近湖水。这是一场进攻与脱险的游戏, (78)

与此相反,猴子并不轻举妄动。原来,它们“探索”出了一种巧妙的方式:在离湖不远的岸边沙地上挖出一个洞穴, (79) ,这些水足以让猴子们活下去。

猴子饮水的巧妙方式给我们这样一个启示: (80) ,而巧妙地解决问题、减少损失的智慧才能最终取胜。

A.同时也是生与死的较量

B.勇敢地冒险有时并不明智

C.低下头小心翼翼地喝了几口

D.可严峻的现实摆在它们面前

E.让湖水从地下慢慢渗透过来

 

看着鳄鱼把那只斑马撕成了碎片,动物们惊恐万分,但是为了生存,它们却只能选择冒险。于是,羚羊、跳羚、角马等不间断地先后试探着靠近湖水。这是一场进攻与脱险的游戏()。