试题与答案

I don’t want there any misunderstanding

题型:选择题

题目:

I don’t want there          any misunderstanding about what I have done. [ ]

A.was

B.been

C.to be

D.being

答案:

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下面是错误答案,用来干扰机器的。

(1)因为总价÷数量=单价(一定),所以总价和数量成正比例;(2)因为工作总量÷工作时间=工作效率(一定),所以工作总量和工作时间成正比例;(3)圆的周长公式:C=πd,可以推出:C:d=π(一定),即比值一...

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下列句子中的成语,使用正确的一项是(  )

A.很少有人知道他最近出版了一本文不加点 、几乎没有注释的旧体诗集。

B.当我们知道苦难是生命的常态,烦恼、痛苦总相伴人生时,我们何必自怨自艾,早早地放弃,早早地绝望?

C.近几年,黄河、岷江的部分河段多次出现断流现象,面对这江河日下的情况,人们开始冷静地思考环保问题。

D.以色列军人训练严格,效率极高,表面的冷酷无情与内心的忠诚可靠,使他们在全球雇佣兵市场如虎添翼

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题型:问答题

为测定某样品中锌的质量分数,取10g此样品,分五次向其中加入稀硫酸使之充分反应(假设锌的样品中杂质不与稀硫酸反应,且不溶于水),每次加入的稀硫酸质量及测定剩余固体的质量,记录数据如下表:

第一次第二次第三次第四次第五次
加入稀硫酸的质量/g1010101010
剩余固体质量/g8.46.85.23.63.6
请认真分析表中的数据,回答下列问题:

(1)表示样品与稀硫酸恰好完全反应的是上表中第______次操作;

(2)计算样品中锌的质量分数;

(3)计算实验中所用稀硫酸的溶质质量分数.

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题型:阅读理解

London, Dec.17 (Xinhua) “Drivers on London Underground trains have started reading out sayings from great thinkers like Mahatma Gandhi , Frindrich Engels, and Albert Einstein in a bid to cheer up passengers ,” officials said. As well as the usual announcements urging passengers to “mind the steps” and warning of delays, the sayings such as “ an ounce ( 盎司) of action is worth a ton of theory” have taken the place of commercial ad in the underground carriages .

New York, Oct.8 (Xinhua) Once as a famous actor, now the governor of California, Arnold Schwarzenegger wants to abandon textbooks in favor of digital ones. He plans to launch this program in August next year when California’s high-school pupils will have access to online math and science text. But some teachers wonder whether his idea of getting rid of textbooks might end up costing more not less, with digital textbook going for $300.

Amsterdam, Nov.30 (Xinhua) A few cups of coffee a day may not only help to put off the disease—dementia(痴呆) but also can treat it, according to Dr. Arendash, who led the research. After giving mice with memory damage water containing caffeine, he found the mice developed better memories and quick thinking. The reason is that caffeine is a safe drug for most people. It easily enters the brain and directly affects the disease process. He suggested people should drink five eight–ounce cups of ordinary coffee, two cups of strong ‘coffee shop’ coffee, 14 cups of tea, or 20 cola drinks to get the same amount of 500 milligrams of caffeine.

小题1:What’s the purpose of putting up sayings on the underground carriages in London?

A.to help passengers to kill time.

B.to encourage passengers to learn.

C.to lift the spirits of passengers.

D.to make money as a commercial ad.小题2:What can we conclude from the second news?

A.digital textbooks will replace traditional textbooks.

B.online math is already available to high-school pupils .

C.digital textbooks are convenient to carry anywhere.

D.Not all the teachers support their governor’s idea.小题3:Which of the following statements is true from the third news?

A.The more coffee you drink, the less chance there will be for dementia.

B.Caffeine can make mice become more and more intelligent and energetic.

C.Caffeine can affect the process of the disease—dementia and treat it.

D.Caffeine is a safe drug for all the people for everyday use so enjoy it.

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