2022届天府名校四七九模拟精编文科综合八答案

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16.A【命题意图】本题以跳台滑雪为情境，要求考生运用所学的平抛运动的必备知识解答相关问题，主要考查考生获取信息、模型建构的能力，体现了物理观念的学科素养，突出基础性、应用性的考查要求。【解题分析】运动员在竖直方向做自由落体运动，设A点与B点的距离为L,有Lsin30°=。g,得L=40m。设运动员离开A点时的速度大小为w0,运动员在水平方向的分运动为匀速直线运动，有Lcos30°=ot,得=10W3m/s,A项正确。

29.【答案】B【解析】推理判断题。由第二段中“ The problem most likely is rooted in the fact that Baltimore has nearly I7,000abandoned buildings, which are concentrated in economically disadvantaged areas”呵可知。30.【答案】A【解析】细节理解题。由第三段中“ Aedes albopictus( better known as Asian tiger mosquitoes)”可知。31.【答案】D【解析】段落大意题。由最后一段“ Bigger mosquitoes are not just a bigger annoyance: the larger they are,…were72 percent more likely to have Asian tiger mosquitoes than high-income blocks were and showed higher mosquitodensities”"可知本段主要内容是谈论大蚊子引出的问题。【语篇解读】过去五十年来,美国一些地方的蚊子数量上升了10倍,暗示一些疾病的传播,如登革热等。项新的研究表明一些经济落后地区蚊子头数多、数量大、活的时间长,造成的危险大28.【答案】C【解析】细节理解题。由第一段中“ a situation with worrying inferences for the spread of diseases such as WestNile virus, dengue and chikungunya