2017届高三英语一轮复习同步课件：Unit 4（人教版选修六）
<p> <span word="It">It</span> <span word="is">is</span> <span word="generally">generally</span> <span word="believed">believed</span> <span word="that">that</span> <span word="the">the</span> <span word="greenhouse">greenhouse</span> <span word="effect">effect</span> <span word="resulting">resulting</span> <span word="from">from</span> <span word="industrial">industrial</span> <span word="activities">activities</span> <span word="destroys">destroys</span> <span word="the">the</span> <span word="natural">natural</span> <span word="environment">environment</span>.<span word="Under">Under</span> <span word="such">such</span> <span word="circumstances">circumstances</span>，<span word="Ren">Ren</span> <span word="admitted">admitted</span> <span word="it">it</span> <span word="would">would</span> <span word="be">be</span> <span word="difficult">difficult</span> <span word="for">for</span> <span word="the">the</span> <span word="public">public</span> <span word="to">to</span> <span word="accept">accept</span> <span word="his">his</span> <span word="viewpoint">viewpoint</span>.<span word="He">He</span> <span word="only">only</span> <span word="hoped">hoped</span> <span word="that">that</span> <span word="both">both</span> <span word="natural">natural</span> <span word="and">and</span> <span word="human">human</span> <span word="factors">factors</span> <span word="should">should</span> <span word="be">be</span> <span word="taken">taken</span> <span word="into">into</span> <span word="consideration">consideration</span> <span word="when">when</span> <span word="people">people</span> <span word="think">think</span> <span word="about">about</span> <span word="global">global</span> <span word="warming">warming</span>.</p><p> <span word="Answer">Answer</span> <span word="the">the</span> <span word="following">following</span> <span word="questions">questions</span>. 1．<span word="What">What</span>’<span word="s">s</span> <span word="the">the</span> <span word="opinion">opinion</span> <span word="of">of</span> <span word="some">some</span> <span word="Chinese">Chinese</span> <span word="scholars">scholars</span>? 【答案】<span word="Global">Global</span> <span word="warming">warming</span> <span word="has">has</span> <span word="advantages">advantages</span>. 2．<span word="How">How</span> <span word="did">did</span> <span word="Mr">Mr</span>.<span word="Ren">Ren</span> <span word="draw">draw</span> <span word="his">his</span> <span word="conclusion">conclusion</span>? 【答案】<span word="This">This</span> <span word="conclusion">conclusion</span> <span word="came">came</span> <span word="after">after</span> <span word="detailed">detailed</span> <span word="comparison">comparison</span> <span word="based">based</span> <span word="on">on</span> <span word="historical">historical</span> <span word="records">records</span> <span word="of">of</span> <span word="agricultural">agricultural</span> <span word="production">production</span> <span word="between">between</span> <span word="the">the</span> <span word="warmer">warmer</span> <span word="periods">periods</span> (1750－1790) <span word="and">and</span> <span word="the">the</span> <span word="colder">colder</span> <span word="periods">periods</span>(1841－1890)． <span word="Unit">Unit</span> 4 <span word="Global">Global</span> <span word="warming">warming</span></p><p> 一些中国科学家认为全球变暖对中国和一些发展中国家很有利。 <span word="The">The</span> <span word="other">other</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="story">story</span> <span word="Some">Some</span> <span word="Chinese">Chinese</span> <span word="scholars">scholars</span> <span word="believe">believe</span> <span word="global">global</span> <span word="warming">warming</span> <span word="has">has</span> <span word="advantages">advantages</span>.<span word="They">They</span> <span word="think">think</span> <span word="the">the</span> <span word="warming">warming</span> <span word="climate">climate</span> <span word="can">can</span> <span word="bring">bring</span> <span word="benefits">benefits</span> <span word="to">to</span> <span word="China">China</span> <span word="and">and</span> <span word="many">many</span> <span word="developing">developing</span> <span word="countries">countries</span>. <span word="Mr">Mr</span>.<span word="Ren">Ren</span>，<span word="a">a</span> <span word="Chinese">Chinese</span> <span word="scientist">scientist</span>，<span word="began">began</span> <span word="to">to</span> <span word="study">study</span> <span word="global">global</span> <span word="climate">climate</span> <span word="change">change</span> <span word="more">more</span> <span word="than">than</span> <span word="a">a</span> <span word="decade">decade</span> <span word="ago">ago</span>.<span word="He">He</span> <span word="indicated">indicated</span>(表明) <span word="that">that</span> <span word="the">the</span> <span word="rainfall">rainfall</span> <span word="brought">brought</span> <span word="by">by</span> <span word="the">the</span> <span word="summer">summer</span> <span word="wind">wind</span> <span word="coming">coming</span> <span word="off">off</span> <span word="the">the</span> <span word="ocean">ocean</span> <span word="would">would</span> <span word="improve">improve</span> <span word="the">the</span> <span word="ecological">ecological</span> <span word="environment">environment</span> <span word="in">in</span> <span word="some">some</span> <span word="arid">arid</span>(干旱的)<span word="or">or</span> <span word="semi">semi</span><span word="arid">arid</span> <span word="areas">areas</span>.<span word="In">In</span> <span word="other">other</span> <span word="words">words</span>，<span word="a">a</span> <span word="warmer">warmer</span> <span word="climate">climate</span> <span word="could">could</span> <span word="result">result</span> <span word="in">in</span> <span word="increased">increased</span> <span word="agricultural">agricultural</span> <span word="harvest">harvest</span> <span word="for">for</span> <span word="most">most</span> <span word="parts">parts</span> <span word="of">of</span> <span word="China">China</span> <span word="and">and</span> <span word="many">many</span> <span word="developing">developing</span> <span word="countries">countries</span> <span word="located">located</span> <span word="at">at</span> <span word="the">the</span> <span word="edge">edge</span> <span word="of">of</span> <span word="the">the</span> <span word="summer">summer</span> <span word="wind">wind</span>.<span word="Mr">Mr</span>.<span word="Zhang">Zhang</span>，<span word="professor">professor</span> <span word="of">of</span> <span word="the">the</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Geography">Geography</span>，<span word="Chinese">Chinese</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span>，<span word="found">found</span> <span word="that">that</span> <span word="the">the</span> <span word="agricultural">agricultural</span> <span word="production">production</span> <span word="in">in</span> <span word="most">most</span> <span word="parts">parts</span> <span word="of">of</span> <span word="China">China</span>，<span word="except">except</span> <span word="for">for</span> <span word="Guangdong">Guangdong</span> <span word="Province">Province</span> <span word="and">and</span> <span word="coastal">coastal</span> <span word="areas">areas</span> <span word="in">in</span> <span word="the">the</span> <span word="southeast">southeast</span>，<span word="was">was</span> <span word="higher">higher</span> <span word="in">in</span> <span word="warmer">warmer</span> <span word="periods">periods</span> <span word="than">than</span> <span word="in">in</span> <span word="colder">colder</span> <span word="ones">ones</span>.</p>
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