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7. ----Thank you very much.   ----     .

A. That’s ok   B. It’s pleasure    C. How are you?   D. It’s a pleasure

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6. Could you please    here?

A. not to smoke   B. not smoke  C. smoke   D. to not smoke

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5. Try to finish the work with    money and   people.

A. less, more     B. less, fewer   C. fewer, less   D. more, less

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4. Why don’t you    the teachers for help?

A. to ask      B. asking    C. to turn to    D. turn to

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3. We are all    in that    painting on the wall.

A. interest, interest        B. interesting, interested 

C. interested, interesting      D. interested, interested

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2. We want to have a concert    money for the poor children in the western part of China.

A. make    B. to make   C. making    D. made

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1. When he was    university student, he was   Olympic champion.

A. a, an    B. an, a     C. a, the     D. an, the

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7.(2007辽宁)如图,已知等边三角形ABC中,点D、E、F分别为AB、AC、BC边的中点,M为直线BC上一动点,△DMN为等边三角形(点M的位置改变时,△DMN也随之整体移动).

(1)如图①,当点M在点B左侧时,请你判断EN与MF有怎样的数量关系?点F是否在直线NE上?都请直接写出结论,不必证明或说明理由;

(2)如图②,当点M在BC边上,其它条件不变时,(1)的结论中EN与MF的数量关系是否依然成立?若成立,请利用图②证明;若不成立,请说明理由;

(3)若点M在点C右侧时,请你在图③中作出相应的图形(不写作法),(1)的结论中EN与MF的数量关系是否仍然成立?请直接写出结论,不必证明或说明理由.

 

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6.(2007兰州)在Rt△ABC中,∠ACB=90°,∠CAB=30°,用两种方法把它分成两个三角形,且要求一个三角形是等腰三角形.

 

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5.(2008宁夏)已知bc为三个正整数,如果+b+c=12,那么以bc为边能组成的三角形是:①等腰三角形;②等边三角形;③直角三角形;④钝角三角形.以上符合条件的正确结论是       .(只填序号)

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