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同步练习：Unit1UsingLanguage随堂训练

Ⅰ.单词拼写

1．Theemployeesshouldbe________(祝贺)fortheparttheyhaveplayedinthesuccess.

2．Theaudienceshowedits________(赞成)bycheeringloudly.

3．Peopleinthefloodedareasareinneedofdirect____(援助)．

4．Theamountofmoneywehavebeengivenismoreorless________(足够)．

5．Theonly________(通路)tothetownisacrossthebridge.

6．Badcustomsshouldbe________(废除)．

7．Mytwo________(同伴)watchedmewatchingthem，buttheysaidnothing.

8．Itisthreeyearssincehe________(毕业)．

9．Wehavebeenremindedofwhat________(建筑师)andbuilderscandotocutenergyandwateruse.

10．Agoodtoolboxisa________(方便)thingtohaveinanyhouse.

Ⅱ.阅读理解

A

SleeplessChildrenMoreLikelytoSufferfromHeartDisease

MONTREAL－Childrenwhodontgetenoughsleeparemorelikelytosufferfromheartdisease，researcherssay，whilesleepdisordersinteenagersareclimbing.

AsresearchersattheCanadianCardiovascularCongressinMontrealreportedonthedetrimentaleffectsoflackofsleeponchildrenonTuesday，BrianMcCrindle，apediatriccardiologistattheHospitalforSickChildreninToronto，saidinaninterviewthatoneinfiveteenagersreportshavingpoorsleepandregularlytakessleepmedication.

Lackofsleepisanimportantriskfactorfordevelopingchildhoodobesity(肥胖)，whichcanleadtopremature(早期的)heartdisease，researchshows.Obesitycontributestoseveralriskfactorsfortheconditionsuchashighbloodpressureandhighcholesterol.

McCrindlesstudyof1,600Grade9Torontostudents，averageage14and15，showedsleeppatternsdisturbedbystayinguptowatchtelevision，playvideoorcomputergames，andsocialnetworking.

Poorsleepcorrelatedwithhigherweightandbodymassindex，bloodpressure，cholesterolandotherpoorhealthconditions，includingpoorfoodchoicesandlackofphysicalactivity.Manyreporteddifficultystayingawakeduringtheday.

“Theydontrealizehowimportantsleephygiene