问题 选择题

与蜜蜂相比,蝗虫的发育过程少了一个什么时期

A.卵

B.幼虫

C.蛹

D.成虫

答案

答案:C

题目分析:蜜蜂的发育属于完全变态发育,发育过程为:受精卵→幼虫→蛹→成虫四个阶段,蝗虫的发育属于不完全变态发育,其发育过程为:受精卵→幼虫→成虫三个阶段,比完全变态发育少了蛹这个阶段。

点评:此题为基础题,掌握昆虫的不完全变态发育过程和完全变态发育的不同,进行解题。

完形填空

阅读下面短文,掌握其大意,然后从36~45各题所给的A、B、C和D项中,选出最佳选项,并在正确选项上化对钩.

       There once was a farmer who lost his watch in his barn (谷仓). The watch was only cheap but was very ____36    to him because it was a gift from his father.

       After _  37 __ the barn for a long time, he gave up and asked for __38 __ from a group of children playing nearby.

       He __39 __ them that the person who found the watch would be rewarded.

Hearing this, the children hurried inside the barn ___40 __. They searched everywhere but still could not find the __41 ___. Just when the farmer was going to give up, a little boy went up to him and asked to be given another ___42___.

       The farmer looked  I'm daydaytest Placeholder!boked at him and thought, “ Why not? After all, this kid looks honest.”

        So the farmer __43 _ the little boy back into the barn. After a while the little boy came out with the watch in his hand! The surprised farmer asked the boy how he ___44__ where the rest had failed.

        The boy replied, “ I did nothing but sit quietly and listen for the sound of the watch.”

        This shows us that sometimes a __45__ mind can think better than an excited one.”

36. A. important            B. expensive          C. useless              D. interesting

37. A. finding                B. searching           C. watching           D. studying

38. A. money                B. danger               C. work                D. help

39. A. promised            B. taught                C. warned             D. believed

40. A. angrily                B. slowly                C. immediately      D. hardly

41. A. rule                    B. book                 C. child                  D. watch

42. A. way                   B. chance               C. lesson               D. smile

43. A. threw                 B. sent                   C. gave                  D. caught

44. A. came                 B. knew                 C. succeeded         D. suggested

45. A. beautiful             B. smart                 C. peaceful            D. quick

判断题