九年级英语上册 Unit 5 Look into Science Lesson 29 DNA—The Story of You教学课件 （新版）冀教版.ppt

unit5lookintoscience lesson29dna thestoryofyou thisistheshapeofdna dna isshortfordeoxyribonucleicacid doyouthinkit smagic biology 生物 a blueprint 计划 蓝图 complex 复杂的 合成的 pattern 模式 图案 样品 identify 确定 认同 general 一般的 普通的 introduction 指令 命令 指示 related 有关系的 有关联的 叙述 readthelessonandanswerthequestions whatisablueprint whichismorecomplex buildingalivingthingorbuildingahouse dosometwinshavethesamedna isitpossibletochangeyourdna whosednaisrelatedtoyours readthelessonandanswerthequestions 1 whatisablueprint 2 whichismorecomplex buildingalivingthingorbuildingahouse 3 dosometwinshavethesamedna ablueprintisadrawingthatshowshowtoputahousetogetherwithmanydifferentparts buildingalivingthingisfarmorecomplexthanbuildingahouse yes theydo 4 isitpossibletochangeyourdna 5 whosednaisrelatedtoyours yes itis inthefuture scientistsmightbeabletochangeourdna peoplewhoarerelatedtome forexample myparentsandgrandparents between与amongbetween用于两者之间 among一般指三者或三者以上 jacksitsbetweentimandbob jack坐在tim和bob之间 shewasamongthecrowd 她处在人群中 use todosth 用 做某事sheisusingaknifetocutvegetables 她正用小刀切蔬菜 use的形容词是useful isthefridgeveryuseful 这台冰箱很有用吗 too与eithertoo与either都表示 也 其区别是too用于肯定句 表示 也 either用于否定句 表示 也不 他们通常都位于句末 其前用逗号隔开 hehasababybrother too 他也有个小弟弟 hedoesn thaveaneraser either 他也没有橡皮 own的用法adj 自己的 用在所有格后面 加强语气 hemakesallhisownnotebooks 她所有的衣服都是自己做的 vt 有 拥有whoownsthecar 这辆汽车是谁的 ownern 所有人 物主sheistheownerofthehouse 她是这座房子的主人 exceptfor除 以外 只是davidisagoodmanexceptforhottemper 大卫除了脾气暴躁以外 他是个好人 theclassroomisniceexceptfordirtyonthefloor 教室除了地板脏以外都很好 fillintheblankswiththephrasesinthebox ingeneral exceptfor notonly butalso relatedto evenif thesame as 1 yourhomeworkisquitegoodafewspellingmistakes 2 theyoungtheoldlikepopmusic 3 kate shairiscolourhersister s 4 womenlivelongerthanmen 5 manydifficultiesremain wecanovercomethem 6 iswealthhappiness exceptfor notonlybutalso thesameas ingeneral evenif relatedto completethepassagewiththesentencesinthebox changingdnadoyouknowdnacanbechanged haveyoueverseenapigwithadog sbody ofcoursenot pigsanddogscan thavebabiestogether butnow scientistscandoit scientistscantakednafromonekindofanimalandputitintoanotherkindofanimal theycandesignnewplantsbycombiningthednaofotherplants somescientistsareworried theysayweneedtoknowmoreaboutdnabeforewestartchangingit butwhatiftheplantsarebadforhumans too a theirdnacan tcombine b wecanmakeplantsthatarebadforpests c theycanevencombinethednaofaplantandananimal a c b isitagoodideatochangethednaofthefoodweeat somepeoplesaydoingthismakesourfoodbetter other