2018-2022高一课标英语周报第23期答案

书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

4.C【解析】孟德尔提出并验证遗传定律所用的遗传学材料是豌豆,A项错误;沃森和克里克究DNA结构时,建立的是DNA的双螺旋结构模型,属于物理模型,B项错误;富兰克林和威尔金斯提供了DNA衍射图谱的有关数据,对DNA双螺旋结构模型的建立也做出了巨大的贡献,C项正确;赫尔希和蔡斯用3S和3P分别标记T2噬菌体的蛋白质和DNA,证明了DNA是遗传物质,D项错误。

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