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.

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A．arain

B．veryhotweather

C．astrongwind

D．lowairpressure

3．Lowairpressuremaymakepeople________.

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A．forgetful

B．sad

C．angry

D．tired

4．In“goodweather”of18℃________.

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A．peopleareveryforgetful

B．peoplecan'tdotheirworkwell

C．thinpeoplefeelcold

D．peopleareinbetterhealth

5．Thewriterwantstotellu