高中英语 unit 5 launching your career section 3 using language知能达标 新人教版选修

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1、“讲忠诚、严纪律、立政德”三者相互贯通、相互联系。忠诚是共产党人的底色，纪律是不能触碰的底线，政德是必须修炼的素养。永葆底色、不碰底线Unit5LaunchingyourcareerSection3UsingLanguageⅠ.阅读理解A(2016·吉林高三质检)Travelisexcitingandsummerisabusyperiodforholidaytravel.Manypeoplewilltravelgreatdistancesinairplanes，carsorothervehicles.Expertssaypeopleshouldk

2、nowaboutotherhealthproblemsthatcanstrikewhentravellingbyair.Oneoftheseisaconditioncalledhypoxia(缺氧症)．Itresultsfromalackofoxygentothebrain.Expertssaythebodybeginslosingoxygenminutesafteranairplaneleavestheground.Theairpressureinanairplaneduringflightislowerthanatsealevel.Thism

3、akesitmoredifficultforthebodytoeffectivelyusethesameamountofoxygenasitwouldontheground.Feweroxygenmolecules(分子)crossthetissues(组织)inthelungsandreachthebloodstream.Theresultisafivetotwentypercentdropintheamountofoxygenintheblood.Thisreducestheamountofoxygenthatreachestheorgans

4、ofthebody.Oneeffectofthislackofoxygentothebrainisaheadache.Whenthishappens，theheartattemptstofix_the_situationbybeatingharderandfaster.Thiscanmakethetravellerfeeltired.Thesesignsofhypoxiaarenotdangerousinahealthyperson.Butadropinoxygenlevelcancauseahealthemergencyinpeoplewith

5、heartorlungproblems.Theymightloseconsciousnessorevensufferaheartattack.Expertssaythatsmokingcigarettesanddrinkingalcoholicliquidsalsoreducethebody'sabilitytouseoxygen.Sotheysuggestthatpeoplenotdrinkalcoholorsmokecigaretteseitherbeforeorduringaflight.Theyalsosaypersonswithhear

6、torlungproblemsshouldseekadvicefromtheirdoctorsbeforeflying.【语篇解读】　本篇为科普知识类文章。旅行是一件令人兴奋的事，但同时要注意健康问题，比如说乘坐飞机时有人会得缺氧症。如重视不够，也会危及生命。1．Theauthorwritesthepassagemainlyto________.A．warnpeopleinairplanesofpossibledangersB．offersomeadviceonavoidinghealthproblemsC．explainthecausesand

7、effectsofhypoxiaD．advisepeoplenottosmokeordrinkalcohol政德才能立得稳、立得牢。要深入学习贯彻习近平新时代中国特色社会主义思想特别是习近平总书记关于“立政德”的重要论述，深刻认识新时代立政德的重要性和紧迫性。“讲忠诚、严纪律、立政德”三者相互贯通、相互联系。忠诚是共产党人的底色，纪律是不能触碰的底线，政德是必须修炼的素养。永葆底色、不碰底线【解析】　主旨大意题。本文开始先阐明了缺氧症的成因，然后又说明了它对人体可能会带来的负面影响及伤害。【答案】　C2．Accordingtothepassage

8、，whatleadstohypoxia?A．Thebrainlacksenoughoxygen.B．Theairpressureinap