问题 选择题

感冒了会感到鼻塞,闻不到食物的香味,这是因为(   )

A.病菌侵犯,味觉失灵

B.鼻腔黏膜充血肿胀,嗅细胞接触不到气味的刺激

C.病毒过多,鼻腔堵塞

D.病毒阻挡,空气通过量少

答案

答案:B

题目分析:呼吸道包括鼻腔、咽、喉、气管、支气管,是呼吸的通道,呼吸道保证了气体的畅通.鼻腔是呼吸道的组成器官,其中有鼻毛可以阻挡灰尘,黏液可以粘住灰尘,对空气又清洁作用;鼻黏膜中有丰富的毛细血管,可以温暖空气,鼻粘膜分泌的黏液可以湿润空气.鼻黏膜中还有嗅细胞,当人体感冒时,鼻黏膜充血肿胀,会堵塞空气进出的通道,嗅细胞也就嗅出不到气味的刺激,所以会感到呼吸困难、闻不到食物的香味。故选:B

完形填空

My grandfather took me to the fish pond on the farm when I was seven. He told me to throw a__21____into the water. And he told me to watch the____22___created by the stone. Then he asked me to__ 23__ of myself as that stone.

“You may24 lots of splashes (飞溅 ) in your life,___ 25___the waves that come from those splashes will ___26____the peace of all your fellow___27_____,”he said.

“Remember that you are ___28____for what you put in your circle and that the circle will also___29____many other circles. You will need to live in the ___30____that allows the good that comes from your circle to ___31____the peace of that goodness to___32____. The splash that comes from anger or jealousy will send those___33_____to other circles. You are responsible for____34_____.”

That was the first time I ___35_____each person creates the inner peace or discord (冲突) that ____36_____out into the world. We cannot create world peace if we are ___37____with inner conflicts, hatred, ____38______, or anger. We radiate (流露) the feelings and thoughts that we hold ____39_____,whether we speak them out or not. Whatever is splashing around inside of us is spilling out into the world, creating beauty or discord with all other circles of life.

We are ____40_____to everything and everyone else around in the universe.

21. A. stick    B. brick     C. stone      D. ball

22. A. holes    B. circles    C. drops      D. waters

23. A. think    B. accuse    C. regard     D. warn

24. A. produce  B. damage   C. prevent    D. create

25. A. but      B. because   C. while      D. for

26. A. cut      B. disturb    C. bring      D. block

27. A. students  B. friends    C. creatures   D. workers

28. A. proud    B. helpful    C. respectful   D. responsible

29. A. hear     B. leave      C. strike      D. touch

30. A. family   B. situation    C. way       D. hurry

31. A. send     B. provide    C. destroy     D. keep

32. A. them     B. nobody    C. someone    D. others

33. A. tastes     B. smells     C. feelings    D. views

34. A. all       B. both       C. neither     D. any

35. A. realized   B. recognized   C. admitted   D. promised

36. A. flows     B. takes       C. picks       D. brings

37. A. prepared   B. filled      C. presented    D. supplied

38. A. honesty    B. truth       C. doubt      D. modesty

39. A. forward    B. outside     C. inside      D. upward  

40. A. referred    B. intended    C. devoted    D. connected

单项选择题