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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遼寧)如圖,已知等邊三角形ABC中,點(diǎn)D、E、F分別為AB、AC、BC邊的中點(diǎn),M為直線BC上一動(dòng)點(diǎn),△DMN為等邊三角形(點(diǎn)M的位置改變時(shí),△DMN也隨之整體移動(dòng)).

(1)如圖①,當(dāng)點(diǎn)M在點(diǎn)B左側(cè)時(shí),請(qǐng)你判斷EN與MF有怎樣的數(shù)量關(guān)系?點(diǎn)F是否在直線NE上?都請(qǐng)直接寫出結(jié)論,不必證明或說明理由;

(2)如圖②,當(dāng)點(diǎn)M在BC邊上,其它條件不變時(shí),(1)的結(jié)論中EN與MF的數(shù)量關(guān)系是否依然成立?若成立,請(qǐng)利用圖②證明;若不成立,請(qǐng)說明理由;

(3)若點(diǎn)M在點(diǎn)C右側(cè)時(shí),請(qǐng)你在圖③中作出相應(yīng)的圖形(不寫作法),(1)的結(jié)論中EN與MF的數(shù)量關(guān)系是否仍然成立?請(qǐng)直接寫出結(jié)論,不必證明或說明理由.

 

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6.(2007蘭州)在Rt△ABC中,∠ACB=90°,∠CAB=30°,用兩種方法把它分成兩個(gè)三角形,且要求一個(gè)三角形是等腰三角形.

 

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5.(2008寧夏)已知、b、c為三個(gè)正整數(shù),如果+b+c=12,那么以、b、c為邊能組成的三角形是:①等腰三角形;②等邊三角形;③直角三角形;④鈍角三角形.以上符合條件的正確結(jié)論是       .(只填序號(hào))

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