Word came that the government must contr

题型:完形填空

问题:

Word came that the government must control the spread of this disease.

“Our job,”said the 26 officer,“is to spray the wall of every house in every town and village in the malariaparts of Mexico.You may be 27 to learn that there are about ninety-nine thousand 28 villages and towns.Some are big places like the capital city, 29 are single houses deep in the forest or upon the mountaintops.The men working with our program say that most of these people 30 within districts which are 31 enough for the mala ria-carrying mosquitoesto live in and spread the disease.That 32 that we must plan to spray the bricks of 33 three million houses once or twice a year for five years.”

“We have 34 everything very carefully,”said the officer 35 .“Our advance guards have drawn 36 of some forty thousand parts of the country for 37 by the spray teams.Each house in the malaria districts has been given a special 38 so that we can work in order.The United States has given us cars and trucks to carry the spray teams and their 39 .”

“The malaria program has been 40 with the people in this country.Everyone wants to 41 .The Defense Department is helping us plan the 42 of men and supplies.The Education Department has printed sheets in Spanish to explain 43 malaria is spread.Resistance is a problem.It was in the neighboring country—the United States that such resistance to spray was first 44 .Take the 45 of the housefly and D.D.T. At fist D.D.T. killed them off.Now it won’t hurt a fly.”

“What worries people is the danger that the mosquitoes may become resistant,”said the officer at last.

26.A.education              B.wealth                       C.health                       D.medicine

27.A.surprised                     B.excited                      C.doubtful                    D.happy

28.A.united                  B.developing                C.similar                      D.separate

29.A.other                    B.some                         C.the others                  D.the few

30.A.sleep                    B.live                           C.stand                         D.sit

31.A.cold                            B.hot                           C.bright                       D.warm

32.A.saves                    B.expresses                   C.means                       D.is

33.A.nearly                  B.mostly                      C.finally                       D.only

34.A.read                            B.learnt                        C.written                      D.studied

35.A.mentioned            B.remembered                     C.started                       D.continued

36.A.pictures                B.places                       C.maps                         D.bus-lines

37.A.store                    B.use                           C.share                         D.show

38.A.name                    B.sign                          C.number                            D.attention

39.A.tools                   B.clothes                      C.families                     D.guns

40.A.familiar                B.friendly                     C.strict                         D.popular

41.A.work                    B.run                           C.stop                          D.help

42.A.movement            B.program                    C.action                       D.equipment

43.A.why                            B.how                          C.what                         D.that

44.A.proved                 B.killed                        C.thought                            D.discussed

45.A.event                    B.matter                       C.fact                           D.case

考点:健康环保类阅读
题型:完形填空

生活中常有发生亚硝酸钠中毒事件的报道,这是因为亚硝酸钠外观酷似食盐且有咸味;工业用盐中常混 有亚硝酸钠,有关氯化钠和亚硝酸钠的部分资料如下表:

如要检验食盐中有无亚硝酸钠,下列判定方法错误的是

[ ]

A.在食盐中加入盐酸,观察有无红棕色气体放出

B.蒸干100g100℃食盐饱和溶液,称量溶质的质量是不是39.12g

C.用pH试纸测定食盐溶液的酸碱性

D.把食盐加热到320℃以上观察有无刺激性气味气体放出

题型:完形填空

正常成人二尖瓣口面积为()

A.1~2cm2

B.2~4cm2

C.4~6cm2

D.6~8cm2

E.2~3cm2

题型:完形填空

如图6-16所示,两水池相距1000m,水池水面高差5m,用底宽b=1m的矩形渠道连接。渠道内为均匀流动,正常水深h0=0.41m,渠道壁面的粗糙系数n=0.013。该渠道流量为()。

A.0.82m3/s

B.3.01m3/s

C.0.25m3/s

D.1.43m3/s

题型:完形填空

陈皮的主要功效是()

A.疏肝解郁,化湿止呕

B.理气健脾,燥湿化痰

C.温肺化痰,行气止痛

D.温经散寒,行气活血

E.理气调中,温肾纳气

题型:完形填空

地貌的组合形态

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