【正文】
A. is blue B. has no colour C. is colourful D. is of different colours at different times of the day 23. Planes cannot fly very high because__________. A. there will be less and less(更多 ) air to lift their wings B. the flying machine is not good enough C. the pilot(飛行員 ) will be afraid if he flies too high D. there will not be enough air for the pilot to breathe 24. In the sky there is__________. A. nothing B. air everywhere C. the earth D. the sun, the moon and all the stars 25. The Chinese for “wing” is__________. A. 機身 B. 機翼 C. 機頭 D. 機毛 答案: B B A D B B Jim, with his father, goes to see Grandfather. In the train Jim often puts his head out of the window. His father says, “Jim! Don’t put your head out of the window!” But Jim goes on putting his head out of the window. Here his father takes Jim’s cap quietly(悄悄地 ), hides(藏 ) it behind his back and says, “You see your cap is gone.” Jim is afraid. His father says, “Well, whistle(吹口哨 ) once. Maybe your caps will e back.” Jim whistles. His father puts quickly the cap on Jim’s head. Oh! It is wonderful! Jim laughs. He quickly takes his father’s cap and throws(扔 ) it out of the window. “Now it is your turn to whistle, Dad!” He says happily. ( ) 26. Jim and his father goes to see Grandfather by bus. ( ) 27. Jim’s father tells Jim not to put his head out of the window. ( ) 28. Jim’s father takes Jim’s cap and hides it behind his back. ( ) 29. Jim doesn’t want to have his cap back. ( ) 30. Jim takes his father’s cap and throws it out of the window. 答案: