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 a
re 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