SectionA1.Its+数字+单位+形容词(long,wide,high,tall,deep).Theriveris3metersd_.单位：_(米);_千米;_平方米;_平方千米2.提问Howhigh?Howlong?Howdeep?3.by_(do)通过4.(1)_人口数量用big,small修饰(2)提问_the_China?(3)The_ofChina_(be)about1.4billion.(4)70%ofthe_inthecity_(be)oldpeople.5.feelfree_(do)随便6._令人惊讶的（修饰物）_修饰人beamazedatbeamazed_(do)7._(古代的)emperorsan_(古老的)city8.be_(do)表目的Themainreasonwas_(protect)9.as_asI_据我所知10._(人造的)_(物品)11._保护protectsb.fromsth./_(do)12.run_延伸13._,_,_,_东西南北inthe_ofChina在中国东部southeast东南southwest西南northeast东北northwest西北_,_,_,_东西南北方的inthe_partofChina在中国东部southeastern;southwestern;northeastern;northwestern;15.Itsdangerous_(climb).16._clouds厚的、浓的17.(1)include包含；包括（动词）Theprice(价格)_breakfast.include+_(do)(2)_(介词，包括在内)Manyboyslikeplayingsoccer,_me.18.freezingweather_(条件)19._(吸入)air20.thefirstpeople_(reach)thetop21.succeed动词，成功succeedin_(do)_成功的;成功地_22.Oneofthemain_(原因)_(be)23._difficulties面对困难24._(挑战)(1)名词（可数）achallenge_(do)achallengeof_(do)achallenge_sb.(2)动词challengesb.;challengetodo25.giveup_(do)放弃26._ourdreams实现梦想dreams_梦想实现27.achieve-_(成就;名词)28.the_of_自然的力量29.force名，力量;动词，强迫forcesb._(do)29._尽管（转折）30.the_太平洋SectionB1._动词，重量是._名词，重量.Jimis70kilosin_.Jim_70kilos.2.倍数（_两倍；_三倍）(1)A+be/动词+倍数+as原级asB.(2)A+be/动词倍数+比较级thanB.3.at_出生时;be_出生;4.ababypanda;an_(成年的)panda5.live_活到6._调查,研究;_研究中心do_sth做调查7._为做准备8._醒着的-_睡着的9.Hetoldmethenewswith_(名词，激动)10._撞到._绊倒11.bespecial_sb12.a_ofChina中国的一个象征13.Therebesb._(do)有某人在做14.300_=_300大约15._twoyears每两年16.die_死于_(疾病)17.cantfindenough_(eat).18._(濒危的)_(野生的)animals19._people_school(派某人去某地)_(tell)(目的)20.the_(重要性)of_(save)21.Chinese_中国政府22.tryhard_(help)_(save)23.Scientistsaredoing_(做研究)_(understand)24.Rulesonwhale_(保护).25.Stop_(put)rubbish_thesea.