问题 选择题

为了消灭病虫害而又要保护好环境,下列哪项措施是最恰当的

A.喷洒农药

B.使用网罩

C.生物防治

D.任其自然

答案

答案:C

题目分析:生物防治是指利用生物来防治病虫害,可分为以虫治虫、以鸟治虫和以菌治虫,它利用了生物物种间的相互关系,以一种或一类生物抑制另一种或另一类生物,它的最大优点是不污染环境,成本低,是农药等非生物防治病虫害方法所不能比的,如利用瓢虫防治棉蚜、放养麻雀消灭蝗虫、饲养周氏小蜂防治美国白蛾属于生物防治,故选C。

多项选择题
完形填空

第二节 完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,掌握其大意,然后从36—55各题所给的A、B、C、D四个选项中,选出最佳选项。

One evening after dinner,Mr.and Mrs.Bond called a family meeting.“We’ve had to make a  36  decision,” Mr.Bond announced.“You see,your mother has been offered a post as co-director of a TV station in Chicago. 37 ,the station is not here.After  38  long and hard about it,we’ve  39  that the right decision is to move to Chicago.”

Marc looked  40 ,while his sister Rachel breathlessly started asking when they’d be moving.“It’s surprising but exciting!” she said.Marc simply said,“I can’t leave my  41 . I’d rather stay here and live with Tommy Lyons !”

The Bonds hoped that by the time they moved to Chicago in August,Marc would grow more  42  the idea of leaving.However,he showed no  43  of accepting the decision,refusing to  44  his belongings.

45  the morning of their move,Marc was nowhere to be found.His parents called Tommy Lyons’ house,but Mrs.Lyons said she hadn’t seen Marc.Mrs.Bond became increasingly  46  while her husband felt angry with their son for behaving so  47 .

What they didn’t know was that Marc had started to walk over to Tommy’s house with a faint idea of  48  in Lyons’ attic (阁楼) for a few days.But as he walked along,all the  49  landscape of his neighbourhood  50  him of the things he and his family had done together : the green fence he and his mother had painted;the trees he and his sister used to  51  while playing hide-and-seek;the park  52  he and his father often took walks together.How much would these  53  without his family,who made them special in the first place ? Marc didn’t take the  54  to answer that question but instead,he hurried back to his house, 55  if the were any boxes the right size to hold his record collection.

36.A.different      B.quick           C.wise                D.final

37.A.Besides            B.However          C.Therefore     D.Even though

38.A.thinking          B.quarrelling       C.complaining     D.arguing

39.A.known             B.recognized       C.concluded     D.insisted

40.A.shocked           B.puzzled            C.disappointed     D.excited

41.A.classmates     B.friends             C.neighbours       D.parents

42.A.delighted at      B.pleased with     C.used to            D.worried about

43.A.ways               B.signs           C.interests       D.hopes

44.A.pack                B.collect             C.tie                   D.pile

45.A.Before             B.In                   C.On                  D.During

46.A.anxious           B.angry                 C.frightened     D.miserable

47.A.rudely             B.irregularly          C.irresponsibly   D.naughtily

48.A.hiding             B.staying            C.sleeping           D.living

49.A.beautiful      B.familiar           C.splendid       D.modern

50.A.recalled           B.remembered     C.warned            D.reminded

51.A.plant           B.water           C.climb                 D.hide

52.A.which              B.where              C.that                 D.what

53.A.cost                 B.value           C.mean               D.measure

54.A.time                B.courage           C.strength           D.patience

55.A.looking           B.wondering              C.asking             D.expecting