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问题 填空题

用这些物质的编号填空：

①干冰       ②液氧   ③石灰水   ④碱式碳酸铜

⑤过氧化氢   ⑥食盐   ⑦红磷

其中属于纯净物的是______ 混合物的是______ 化合物的是______单质的有______   属于氧化物的有______．

答案

①干冰是固态二氧化碳，由碳和氢两种元素组成，一种是氧元素，既属于纯净物，还属于化合物，还属于氧化物；②液氧是氧气的液态，由氧元素一种元素组成，属于单质，还属于纯净物；③石灰水中含有氢氧化钙和水，属于混合物；④碱式碳酸铜由一种物质组成，属于纯净物，由铜、氧、氢、碳四种元素组成，还属于化合物； ⑤过氧化氢由过氧化氢一种物质组成，属于纯净物，由氢和氧两种元素组成，属于氧化物，还属于化合物；⑥食盐主要成分是氯化钠，还有其它杂质，属于混合物；⑦红磷是由磷元素一种元素组成的纯净物，属于单质，还属于纯净物．

故答案为：①②④⑤⑦；③⑥；①④⑤；②⑦；①⑤．

选择题

有人形象地把知识经济时代的国家划分为“脑袋国家”和“躯干国家”。“脑袋国家”通过生产和输出知识支配“躯干国家”，“躯干国家”受“脑袋国家”的控制与盘剥。据此回答1~2题。

1、上述材料对我们社会主义精神文明建设的启示是[ ]

A、知识正日益成为社会发展的强大推动力

B、知识经济的发展依赖于知识与信息的生产、扩散和应用

C、当代国际竞争的实质是以经济和科技为基础的综合国力的较量

D、建设社会主义精神文明，必须大力发展教育事业，提升国民文化素质

2、发展教育事业，必须[ ]

①坚持教育为社会主义现代化建设服务

②坚持教育为人民服务

③坚持教育与生产劳动和社会实践相结合

④坚持以提高经济效益为根本出发点

A、①②③

B、①②④

C、②③④

D、①③④
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填空题

Part 1


Questions 1-8


·Read the article below.
·Choose the best sentence from the list on the next page to fill each of the gaps.
·For each gap (1-8) mark one letter (A-H) on the Answer Sheet.
·Do not mark any letter twice.
Poll: Obama Seen As More Compassionate Than McCain
Just hours before the start of the second presidential debate, a new national survey suggests that Sen. Barack Obama is making gains among Americans as a compassionate candidate. (1)
In a new CNN/Opinion Research Corporation poll out Tuesday afternoon, 55 percent of registered voters questioned say that Obama "cares more about people like you" than Sen. John McCain, with 35 percent saying McCain cares more than Obam
  • a. (2)
    "The all-time champion of town-hall debates was Bill Clinton because he was able to connect with the audience members so well," said CNN polling director Keating Holland. "Voters nationwide seem to feel some connection with Obama. (3) John McCain has a pretty good track record at town halls, and it’s possible that he will be the one who looks more compassionate."
    Obama also appears to be building a lead as the candidate with the clearer plan to solve the country’s problems. He has a 15-point lead over McCain on that question in the poll, 48 percent to 33 percent. (4)
    Obama is also making gains on being a p and decisive leader. A 19-point McCain advantage early last month has now shrunk to a 5-point lead. (5)
    "Voters agree with McCain that things are going well for the U.S. in lraq. That’s a switch since April, when we last asked that question," Holland said. (6)
    Among voters, Obama also leads on who would better handle the economy, 57 percent to 37 percent; a financial crisis, 53 percent to 36 percent; and health care, 60 percent to 33 percent. (7)
    Obama’s favorable rating among those questioned in the poll is 62 percent, down one percentage point from three weeks ago. (8) A. But on the question of who has the better experience to be president, McCain still has a big lead over his rival, 54 percent to 36 percent.B. That could be important in the debate in Nashville, which is a town hall-style meeting with the candidates fielding questions from undecided voters in the audience.C. The question is whether he’ll connect with the people at the debate tonight.D. That 20-point margin for Obama is up from a 9-point advantage a month ago.E. McCain’s favorable rating is 54 percent, down three points from three weeks ago.F. "But voters also agree with Obama that the war was a bad idea—and they haven’t changed their minds on that in almost four years."G. McCain leads on the issue of terrorism, 54 percent to 44 percent.H. Last month, McCain had a 2-point advantage over Obama on the topic of having a clearer plan.
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