-高考數(shù)學(xué)一輪復(fù)習(xí)第6章不等式61不等關(guān)系與不等式的性質(zhì)及一元二次不等式課件理

第6章不等式

6．1

不等關(guān)系與不等式的性質(zhì)及一元二次不等式

基礎(chǔ)知識過關(guān)經(jīng)典題型沖關(guān)真題模擬闖關(guān)團(tuán)Tiffany，a16-year-oldgirl，wasveryshy.LastSeptember，herbestfrien“IwasreallysadthemomentIheardthebadnewsandIdidn'tknowwhattodo，”Tiffanyrecalled.“Ishutmyselfinmyroomforawholeweek.ItwasthenthatmyaunttookmetoasportscluboneSaturdayandIsawsomanyyoungpeopleplayingdifferentkindsofsportsthere.Isignedupforabeginner'scourseinvolleyballandsincethenIhavebeenplayingthissport.NowIpracticetwiceaweekthere.ItiswonderfulplayingsportsinthisclubandIhavemadelotsoffriendsaswell.2”Themostbasicaimofplayingsportsisthatyoucanimproveyourhealthevenifyouarenotverygoodatsports.Besides，youcangettoknowacircleofpeopleatyouragewhileplayingsports.3Sinceshejoinedthesportsclub，sIgotusedtothelifehere.AndnowIknowlotsof(5)_________here.Forexample,whenImeetmyfriendonthestreet,Iusually(6)_________himlikethis,“Hey,whereareyougoing?”Inourcountryifsomeoneasksthis,peoplemayget(7)_________butinthiscountrypeoplewon't.Ofcourse,therearesomeotherinterestingthingshere.I'lltellyouaboutthemnexttime.hehasopenedupherselfandnowshehasbecomeveryactiveandenjoysmeetingandtalkingwithothers.1．It'spoliteforgirlstokisseachotheronthesideoftheface.salsobecomemoreconfident.團(tuán)圓圓一家在臺灣可受歡迎了。每天，小朋友們排著長隊，等著跟它們合影留念。從“排著長隊”體現(xiàn)出每天喜歡它們的人不計其數(shù)，特別受選D.A.根據(jù)同類項合并法則,與不是同類項,不能合并,故本選項錯誤;B.根據(jù)算術(shù)平方根的定義,=3,故本選項錯誤;C.根據(jù)同底數(shù)冪的乘法a?a2=a3,故本選項錯誤;D.根據(jù)積的乘方,(2a3)2=4a6,故本選項正確.歡迎。從“合影留念”體現(xiàn)出大家都想和大