B. Manyhealthexperts say thatAfrica’s poverty and politics are to blame for diseasesthat in mostdevelopedcountries are easilypreventable. Internationalhealthagencies set out morethan two years on a $2 billioncampaign to stamp out the globalthreat of polio, the world’s largest-everhealthinitiative. Theybelievedtheycoulderadicate the virus by the end of thisyear. Not any more. In Africa, which has most of the world’s poliocases, politics and armedconflicthaveplayed a majorrole in stalling the polioeradicationprogram. In northernNigeria, governmentofficialssuspended the polioprogram two years ago afterrumorsspreadthat the vaccinecausedsterility and AIDS. Healthworkerssent in to vaccinatechildrenweretaunted or stoned. AlthoughNigerianhealthauthoritieshaveresumed the eradicationprogram, the damage was done. Poliorebounded in northernNigeria and spread to at least 17 othercountriesthat had beenpolio-free. Sudan is one of them. The number of confirmedcases of polio-inducedparalysis in Sudansoared to 54, a dramatic and dangerousrebound in a countrythat had eradicated the virusjustfouryears ago. 【題組】42. What is the maintopic of thispassage?
Whatwilllife be like in the future? Manypeople are busymakingpredictionsabout the future. Scientists and engineersfind out how currenttechnology can be furtherdeveloped. Otherscholars are deeplyconcernedaboutecology and the kinds of energy we should use to protect the environment in the future. Writers put theirimaginativeideasabout the futureintosciencefictionnovels. One example is Frankenstein by MaryShelley, which is a storyabout a scientist who tried to create a new humanbeing. Todaysciencefictionwriterswriteaboutlife on otherplanets and how humanbeings can livelonger. Peoplefrom all walks of life are involved in thinkingabout the futurebecause our survival may dependupon it.
【題組】8 According to people who studyecology, humanbeingsneed to find new sources of energythatwill .
(A) destroy the environment (B) protect the planet we live on
(C) change the geography of the earth (D) help us go to otherplanets