阅读理解．
阅读下面短文，根据短文内容，从短文后各小题所给的选项中选择最佳的一项．
Differentweathermakespeoplefeeldifferent.Itinfluences(影响)healthintelligence(智力)andfeelings.
InAugustitisveryhotandwetinthesouthernpartoftheUnitedStates.Peopletherehavehearttroubleandotherkindsofhealthproblemsduringthismonth.IntheNortheastandtheMiddleWestitisveryhotatsometimesandverycoldatothertimes.PeopleinthesestateshavemorehearttroubleaftertheweatherchangesinFebruaryorMarch.
Theweathercanalsoinfluencesintelligence.Forexampleina1983reportbyscientistsIQ(智商)ofagroupofstudentswereveryhighwhenaverystrongwindcamebutafterthestrongwindtheirIQwas10%below.Thewindcanhelppeoplehavemoreintelligence.Veryhotweatherontheotherhandcanmakeitlower.StudentsinmanyschoolsoftheUnitedStatesoftengetworseonexamsinthehotmonthsoftheyear(JulyandAugust).
Weatheralsohasastronginfluenceonpeople'sfeelings.Wintermaybeabadtimeforthinpeople.Theyusuallyfeelcoldduringthesemonths.Theymightfeelunhappyduringcoldweather.Butfatpeoplemayhaveahardtimeinhotsummer.Atabout18℃peoplebecomestronger.
Lowairpressure(气压)maymakepeopleforgetful.Peopleleavemorebagsonbusesandinshopsonlowpressuredays.Thereisa“goodweather”forworkandhealth.Peoplefeelbestatatemperatureofabout18℃.
Areyoufeelingsadtiredforgetfulorunhappytoday?Itmaybetheweather'sproblem.
1．________canhaveabadeffect(作用)onhealth.
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A．Hotandwetweather
B．Goodweather
C．Warmweather
D．Highintelligence
2．Peoplemayhavemoreintelligencewhen________comes.
[]
A．arain
B．veryhotweather
C．astrongwind
D．lowairpressure
3．Lowairpressuremaymakepeople________.
[]
A．forgetful
B．sad
C．angry
D．tired
4．In“goodweather”of18℃________.
[]
A．peopleareveryforgetful
B．peoplecan'tdotheirworkwell
C．thinpeoplefeelcold
D．peopleareinbetterhealth
5．Thewriterwantstotellu
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