「衡中同卷2023二答案 」衡中同卷2023答案二调，目前我们已经整理了「衡中同卷2023二答案 」衡中同卷2023答案二调的各科答案和试卷，更多衡中同卷请关注本网站。
第二节主题语境：人[文]与自然—环境保护—[章]建立扬子鳄自然保护[来]区【主旨大意】本文[自]是一篇说明文。文章[知]主要介绍了为了保护[嘛]扬子鳄，安徽扬子鳄[答]自然保护区的建立及[案]中国政府在保护扬子[网]鳄方面取得的显著成[文]就。【解析】The[章] Alligator[来] Sinensis([自]扬子鳄)distr[知]ibuted in the lowerreac[嘛]hes of the Yangtze River is a peculiar wildlife in China.The[答]Alligator[案] Sinensis,[网]is one of the fresh water crocodile[文]s in the alliga-to[章]r family,ha[来]s 56.a history of 200 million years.hav[自]e a history of“有着…的历史[知]"为固定短语Havi[嘛]ng a gentle character[答] and no harm to humans,th[案]eAlligato[网]r Sinensis is one of the rare 57.animal[文]s in the world.one[章] of the+可数名词复[来]数，表示“…之一A[自]ccording to the field survey,th[知]e Alligator[嘛] Sinensis is only distrib-u[答]ted over the 58.southe[案]rn part of Anhui Province and some修饰名词p[网]at,作定语，应用[文]形容词places[章] of the neighbour[来]ing province of Zhejiang,[自]59.total([知]1)ing句中已有[嘛]谓语动词is distribut[答]ed,故设空处填非[案]谓语动词：tota[网]l与其逻辑主语th[文]e Alligator[章] Sinensis之[来]间为主动关系abo[自]ut 500 pieces.Th[知]e Chinese Governmen[嘛]t has also given its firstprio[答]rity 60.to take care of the animal.In[案] order to protect the race此处表目的[网]，故用动词不定式作[文]目的状语anima[章]l,an Alligator[来] Sinensis Nature Reserve 61.was establish[自]edestabli[知]sh与主语an Alligator[嘛] Sinensis Nature Reserve之间[答]为被动关系，主语为[案]单数，且动作发生在[网]过去by the Governmen[文]t of Anhui Province.[章]The establish[来]ment of theAlliga[自]tor Sinensis Nature Reserve has played an important[知] role62.in[嘛] preservin[答]g this odd species.p[案]lay a role in..“在…中起[网]作用”，为固定短语[文]With the purpose of rescuing the 63.endang[章]ered species,t[来]he修饰名词spe[自]cies,应用形容[知]词Ministry[嘛] of Forestry carries out artificia[答]l raising,p[案]ropagatio[网]n andresear[文]ch work to regain and develop the resource of the animal inChina and to probe the relations[章]hip between the Alligator[来] Sinensis6[自]4.and human beings.Th[知]e Chinese Governmen[嘛]t has made greatbetw[答]een.,and.[案],,“在两者之间”[网]，为固定搭配eff[文]orts and 65.gained[章] distinct achieveme[来]nts in protectin[自]g one of动作发生在过去[知]且对现在产生影响，[嘛]用现在完成时：hs[答]已给出，故填过去分[案]词the two fresh water crocodile[网]s in the world.mn
【答案】AC【解析[文]】t=1s后二者以[章]相同的速度做匀速运[来]动，水平方向受力平[自]衡，即不受摩擦力作[知]用，在0~2s内，[嘛]木板Q下表面与水平[答]面之间没有摩擦力，[案]P、Q系统在相互作[网]用的过程所受的合外[文]力为零，动量守恒，[章]A正确；从题图乙可[来]知，0~2s内Q先[自]做匀加速直线运动，[知]再做匀速直线运动，[嘛]在1~2s内不受摩[答]擦力作用，根据动量[案]定理，摩擦力的冲量[网]等于动量的变化量，[文]所以I=mQv一0[章]=1N·s,B错误[来]；P的速度从2m/[自]s减为1m/s所需[知]的时间为1s,则a[嘛]=A”=-1m/s[答],又a=二mP8=[案]一4g,所以μ=0[网].1，C正确；在t[文]=1s后，P,Q相[章]对静止，一起做匀△[来]tmp速直线运动，[自]在0~1s内，P的[知]位移大小为x1=2[嘛]+10+1、2×1[答]m=1.5m,Q的[案]位移大小为x:=2[网]×1m=0.5m,[文]则△x=x1一x2[章]=1m<2m[来],知两物块相对静止[自]时P位于Q的中间，[知]不在Q的最右端，D[嘛]错误。
