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(外研版)2019年高中Module5CloningSectionⅣOtherPartsoftheModule教案选修6(英语 解析版)
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    所属学科高中英语
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  • 更新时间2019/10/8 10:43:01
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资源简介
Cloning and DNA
Many people think that the science of genetics and cloning is recent. It's certainly true that in 1953, Watson and Crick, two scientists at Cambridge University, England, discovered the structure of the acid DNA — a transparent twisting ladder made of the fundamental components of life. But in fact, it was in 1866 that Mendel first recorded the results of growing pea plants. He understood that both the parent plants had influenced the genetic make­up of the new plant.
In 1973, biochemists Cohen and Boyer discovered a procedure? to use enzymes? — chemicals? formed in the body — to unzip? the DNA, to cut out? a sequence of? genes?, and finally to insert? them into the host cell? and combine with? its DNA.
[读文清障]
genetics/d??'netIks/ n.遗传学
that引导主语从句,it作形式主语。
acid/'æsId/ adj.酸(性)的
transparent/træns'pær?nt/ adj.透明的
twisting/'twIstI?/ adj.扭曲的弯曲的
fundamental/?f?nd?'mentl/ adj.基本的不可或缺的
component/k?m'p??n?nt/ n成分
made of ...是过去分词短语作后置定语。
it was ... that ...是强调句型强调时间状语in 1866
make­up n.构成,构造
?procedure/pr?'si?d??/ n.程序,注意其后接了四个to do。
?enzyme/'enzaIm/ n.酶 ?chemical n.化学物质
?unzip/?n'zIp/ v.解开 ?cut out 切割出来,分离
?a sequence of一系列的 ?gene/d?i?n/ n.基因
?insert/In's??t/ v.植入,插入 ?the host cell宿主细胞
?combine with 与……结合
be combined with 被与……结合/联合在一起
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