7. ----Thank you very much. ---- .
A. That’s ok B. It’s pleasure C. How are you? D. It’s a pleasure
6. Could you please here?
A. not to smoke B. not smoke C. smoke D. to not smoke
5. Try to finish the work with money and people.
A. less, more B. less, fewer C. fewer, less D. more, less
4. Why don’t you the teachers for help?
A. to ask B. asking C. to turn to D. turn to
3. We are all in that painting on the wall.
A. interest, interest B. interesting, interested
C. interested, interesting D. interested, interested
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
1. When he was university student, he was Olympic champion.
A. a, an B. an, a C. a, the D. an, the
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.
5.(2008宁夏)已知
、b、c为三个正整数,如果
+b+c=12,那么以
、b、c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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