CO2from air and _____can produce food for trees with the help of chlorophyll and sunlight.

试卷相关题目

• 1We can get more O2 by _____.

  A.planting more trees

  B.cutting trees down

  C.making the water in soil polluted

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• 2Chlorophyll is in _____.

  A.sunlight

  B.soil

  C.leaves

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• 3Which of the following information is NOT true、

  A.The 1996 Olympic Games was held in America.

  B.The 27th Olympic Games was held in Europe.

  C.Beijing is getting ready for the 29th Olympic Games.

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• 4The 23rd and 26th Olympic Games were held in the same_____.

  A.town

  B.city

  C.country

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• 5The mascot for the_____Olympic Games was the first Olympic mascot in Olympic history.

  A.1996 Munich

  B.1984 Beijing

  C.1972 Munich

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• 6The picture tells us _____.

  A.how trees let O2 go into air in the sunlight

  B.how trees let CO2 go into air in the sunlight

  C.the sunlight isn’t important to trees at all

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