福建省长泰一中2017届高考英语一轮复习单元精练：人教版必修5 Unit 4_高考复习指南

福建省长泰一中2017届高考英语一轮复习单元精练：人教版必修5 Unit 4

　　1．考生可先看试题，再带着问题到阅读材料中寻找正确答案，加强解题的针对性。

　　2．如果问题中有not,except,least,never等词时，要特别留意，不要漏看这些词或理解错误而误选答案。

　　3．问到what,who,when,which,where,according to the author等具体细节时，一定要以文章所谈到的内容为依据，而不要凭自己的经验或观点去选择答案。

　　◆活学活用

　　阅读下列短文,按要求完成读写任务。

　　Malaria,the world,s most widespread parasitic(寄生虫引起的)disease,kills as many as three million people every year—almost all of whom are under five,very poor,and African.In most years,more than five hundred million cases of illness result from the disease,although exact numbers are difficult to assess because many people don,t(or cant)seek care.It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment,and what they often get no longer works.In countries like Tanzania,Mozambique,and the Gambia,no family,village,hospital,or workplace can remain unaffected for long.

　　Malaria starts suddenly,with violent chills,which are soon followed by an intense fever and,often,headaches.As the parasites multiply,they take over the entire body.Malaria parasites live by eating the red blood cells they infect(感染).They can also attach themselves to blood vessels in the brain.If it doesn,t kill you,malaria can happen again and again for years.The disease passed on to humans by female mosquitoes infected with one of four species of parasite.Together,the mosquito and the parasite are the most deadly couple in the history of the earth—and one of the most successful.Malaria has five thousand genes,and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control.Studies show that mosquitoes are passing on the virus more frequently,and there are more outbreaks in cities with large populations.Some of the disease,s spread is due to global warming.