Plantsareveryimportantlivingthings.Lifecouldnotgooniftherewerenoplants.Thisisbecauseplantscanmakefoodfromairwaterandsunlight.

Animalsandmancannotmakefoodfromairwaterandsunlight.Theygettheirfoodbyeatingplantsandotheranimals.Ifyoulookcarefullyatplantsaroundyouyouwillfindtherearetwokindsofplants:floweringplantsandnon-floweringplants.

Floweringplantscanmakeseeds(种子).Theseedsareguardedbythefruits.Somefruitshaveoneseedsomehavetwothreeorfourandsomehavemany.Butafewfruitshavenoseedsatall.Anexampleofafruitwithoutseedsisthebananafruit.Mostnon-floweringplantsdonotgrowfromseeds.Theygrowfromspores(胚芽).Sporesareverysmall.Somesporesaresosmallandlightthattheycanfloat(漂浮)intheair.Wemaysaythatsporesarequitethesameasseeds.Whenthesesporesareallonwetandsandyplacestheyusuallygrowintoplants.

【小题1】Themainideaofthefirstparagraphisthat_____________.

A．plantsareimportantforlife B．plantscannotgrowwithoutair C．therearemanyplantsintheworld. D．wecannotlivewithoutwater. 【小题2】FromParagraph2weknowthereis(are)_______kind(s)ofplantsaroundus.A．four B．three C．two D．one 【小题3】Inparagraph3theunderlinedword“guarded”mostprobablymeans____________.A．offered B．protected C．produced D．saved 【小题4】Accordingtotheunderlinedsentence“Mostnon-floweringplantsdonotgrowfromseeds”thefollowingstatementsarewrongEXCEPT___________.A．Alltheplantsgrowfromseeds. B．Nofloweringplantsgrowfromseeds. C．Onlynon-floweringplantsgrowfromseeds. D．Afewofnon-floweringplantsgrowfromseeds.