unit1period2高二英语课件
日期：2010-01-03 01:20
Unit1MakingadifferencePeriod2Listening&SpeakingTask1:Quizquestions1Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?Archimedes(287—212BC)Archimedes:AncientGreekHewasamathematicianHefoundthatifyouputanobjectintowaterthewaterpushestheobjectupItrisesandpartlyfloatsGivemeaplacetostandon，andIcanmovetheearth----ArchimedesWhowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?CharlieDarwin(1808-1882)BritainnaturalistTheOriginofSpecieswaspublishedin1859ItexplainedhowplantsandanimalshadchangedovertimetofitinwithachangingenvironmentHisbookshowedthatpeoplehaddevelopedfromapes3Whousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?characteristic:atypicalornoticeablequalityofsomeoneorsomething:UnfortunatelyabignoseisafamilycharacteristicBuildsocietyofChinesecharacteristicGregorMendel(1822—1884)GregorMendelCzechThefatherofgeneticHegrewpeaplantsanddevelopedideasonheredity(遗传)andinheritedcharacteristicsBetw，
查看全部