问题 单项选择题

小细胞低色素性贫血最常见于()

A.再生障碍性贫血

B.白血病

C.急性溶血性贫血

D.缺铁性贫血

E.铁粒幼细胞性贫血

答案

参考答案:D

解析:铁是血红蛋白合成的主要原料,当铁缺乏时,不仅血红蛋白的合成受到影响,而且红细胞的大小也受到影响。所以在缺铁性贫血时,红细胞的表现是小细胞、低色素。

完形填空

第三节 完形填空(共20小题;每小题1.5分,共30分)

We come by business naturally in our family. Each of the seven children in our family worked in our father’s store. 21  we worked and watched, we learned that work was about more than  22  and making a sale.

One lesson stands out in my 23  . It was shortly before Christmas. I was in eighth grade and was working evenings, straightening the toy section. A little boy, five or six years old, came in. He was  24   a brown torn coat with dirty sleeves. His shoes were scuffed and his one shoelace was torn. The little boy looked poor to me ---too poor to 25  to buy anything. He looked 26  the toy section, picked up this item and 27 , and carefully put them 28  in their place.

Dad came down the stairs and walked over to the boy. His blue eyes 29  and the dimple(酒窝) in his cheek stood out as he asked the boy what he could do for him. The boy said he was looking for a Christmas 30  to buy his brother. I was impressed that Dad treated him with the same respect as any adult. Dad told him to take his 31  and look around. He did.

After about 20 minutes, the little boy carefully picked up a toy 32 , walked up to my dad and said, “How much for this, Mister?”

“How much you got?” Dad asked.

The little boy held out his hand and 33  it. His hand was creased(起皱) with 34  lines of dirt from holding his 35   too tightly. In his hand  36  two dimes, a nickel and two pennies—27 cents. The price on the toy plane he’d picked out was $3.98.

“That’ll just 37  it,” Dad said as he 38  the sale. Dad’s reply still 39  in my ears. When the little boy walked out of the store, I didn’t notice the dirty, worn coat or the single torn shoelace. What I saw was a happy child with a 40  .

21. A. Because                    B. Since                C. As                    D. After

22. A. survival                     B. labor                 C. hardship            D. entertainment

23. A. way                    B. mind                 C. life                   D. time

24. A. putting on           B. dressing            C. having                 D. wearing

25. A. try                            B. attempt             C. afford            D. manage

26. A. for                            B. around                 C. up                    D. over

27. A. that                    B. one                   C. it                      D. this

28. A. up                      B. away                 C. back                 D. off

29. A. opened               B. smiled           C. shone            D. looked

30. A. tree                    B. card                  C. present              D. cake

31. A. effort                 B. word                 C. time                  D. courage

32. A. car                            B. gift                   C. plane                D. section

33. A. showed               B. opened                 C. gave                 D. turned

34. A. long                   B. straight             C. wet                   D. main

35. A. toy                            B. pocket           C. hand                 D. money

36. A. lay                            B. had                   C. held                  D. laid

37. A. work                  B. cover                C. need                 D. take

38. A. took                   B. returned           C. made             D. offered 

39. A. rings                  B. stays            C. remains             D. gets

40. A. bag              B. treasure        C. package        D. thing

填空题