四,阅读短文,完成下列题目.AmericanchildrenlovewatchingTV.Someofthemspendsixhoursadayatschoolandfourtosixhoursadayinfrontofthetelevisionset.SomeofthemevenwatchforeighthoursormoreonSundays.Televisionsarel

　　四,阅读短文,完成下列题目.

　　AmericanchildrenlovewatchingTV.Someofthemspendsixhoursadayatschoolandfourtosixhoursadayinfrontofthetelevisionset.SomeofthemevenwatchforeighthoursormoreonSundays.Televisionsarelikebooksorfilms.

　　AchildcanlearnbadthingsandgoodthingsfromTV.Someshowshelpchildrenlearntodoalotofhousework,justlikegradening,cookingangcleaning.Butsomeprogramsarenotgoodforchildren.Soparentsmusthelpthemchoosetherightonestoenjoy.回答下列问题.

　　6.HowmanyhoursdochildrenspendatschoolinAmerica?___________________________________________________________________

　　7.WhataretelevisionslikeinAmerica?___________________________________________________________________

　　8.Arealltheprogramsgoodforchildren?___________________________________________________________________