2019年高考英语一轮总复习 Unit 4 Astronomy the science of the stars课时作业 新人教版必修3

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1、2019年高考英语一轮总复习Unit4Astronomythescienceofthestars课时作业新人教版必修3Ⅰ.阅读理解A(xx·安徽卷)TheHealthyHabitsSurvey(调查)showsthatonlyaboutonethirdofAmericanseniorshavecorrecthabits.Herearesomefindingsandexpertadvice.1．Howmanytimesdidyoubrushyourteethyesterday?●Finding：Afull33%ofseniorsbr

2、ushtheirteethonlyonceaday.●Step：Removethe300typesofbacteriainyourmoutheachmorningwithabatteryoperatedtoothbrush.Brushgentlyfor2minutes，atleasttwiceaday2．Howmanytimesdidyouwashyourhandsorbatheyesterday?●Finding：Seniors，onaverage，bathefewerthan3daysaweek.Andnearly30%was

3、htheirhandsonly4timesaday—halfofthenumberdoctorsremend.●Step：Wetouchourfacesaround3,000timesaday—ofteninvitinggerms(病菌)toenterourmouth，nose，andeyes.Usetoiletpapertoavoidtouchingthedoorhandle.And，mostimportant，washyourhandsoftenwithhotrunningwaterandsoapfor20seconds.3．

4、Howoftendoyouthinkaboutfightinggerms?●Finding：Seniorsarenotfightinggermsaswellastheyshould.●Step：Beawareofgerms.Doyouknowitisnotyourtoiletbutyourkitchensponge(海绵)thatcancarrymoregermsthananythingelse?Tokillthesegerms，keepyourspongeinthemicrowavefor10seconds.[文章大意]本文为说

5、明文。文章介绍的是一个对美国老年人健康习惯调查的结果以及专家给出的对策。1．WhatisfoundoutaboutAmericanseniors?A．Mostofthemhavegoodhabits.B．Nearly30%ofthembathethreedaysaweek.C．Allofthemarefightinggermsbetterthanexpected.D．Aboutonethirdofthembrushtheirteethonlyonceaday.解析：细节理解题。根据第一个问题下Finding的内容“Afull33%

6、ofseniorsbrushtheirteethonlyonceaday.”可知D项正确。答案：D2．Doctorssuggestthatpeopleshouldwashtheirhands________.A．twiceaday　　　B．threetimesadayC．fourtimesadayD．eighttimesaday解析：细节理解题。根据第二个问题下Finding中的“Andnearly30%washtheirhandsonly4timesaday—halfofthenumberdoctorsremend.”可知。答案

7、：D3．Whichofthefollowingistrueaccordingtothetext?A．Weshouldkeepfromtouchingourfaces.B．Therearelessthan300typesofbacteriainthemouth.C．Akitchenspongecancarrymoregermsthanatoilet.D．Weshouldwashourhandsbeforetouchingadoorhandle.解析：细节理解题。根据第三个问题下Step内容中的“Doyouknowitisnotyou

8、rtoiletbutyourkitchensponge(海绵)thatcancarrymoregermsthananythingelse？”可知。答案：C4．Thetextprobablyesfrom________.A．aguidebookB．a