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3.Did you have a favorite plastic toy when you were a child?Did it break?Did your parents throw it away?Well,I know where it is.It's floating(漂。﹊n the Pacific Ocean.Well,let me explain how it (89)can get(get) there.
Many countries put their garbage in the Pacific.Most of the garbage sinks.But plastic floats and   (90)moves(move).The North Pacific Gyre(環(huán)流) pulls things towards the middle.So,all the plastic ends up in the same place.One scientist says the area looks just like"plastic soup".
This"plastic soup"(91)was discovered (discover) about ten years ago.Since that time the amount of plastic in his area (92)has increased(increase) a lot.And this plastic will not just go away,it takes 400years for plastic to degrade(分解).And,even worse,fish and sea birds are eating the plastic.They think it looks like food.The plastic doesn't kill them directly,but the fish (who are not smart!) think they are full.So,they stop (93)eating(eat) and die of hunger.Dolphins and whales will also eat plastic and die.
Governments are starting to work together to clean up this area,but it will take many years.That's why we should always try (94)to recycle(recycle) plastic…even our old toys.

分析 【文章大意】本文講的是環(huán)保問題,即海洋中的塑料垃圾.海洋中的塑料垃圾有其特點和危害,必須設(shè)法回收利用.

解答 89.can get.考查情態(tài)動詞后面跟動詞原形.句意為:讓我告訴你它怎么才能到那里.分析句子成分可知,空格處為謂語,故填動詞.根據(jù)句意,此處為"能夠到達"之意,需要用到情態(tài)動詞can和動詞get.本句說的是事實,故用一般現(xiàn)在時;情態(tài)動詞can無變化,故填can get.
90.moves.考查一般現(xiàn)在時.句意為:但是塑料會漂流和移動.分析句子成分可知,and前后為兩個并列的成分,都是謂語動詞,且都是第三人稱單數(shù)形式.move為動詞,意思是"移動",其第三人稱單數(shù)形式為moves.故填moves.
91.was discovered.考查一般過去時的被動語態(tài).句意為:這種"塑料湯"是十年前發(fā)現(xiàn)的.分析句子成分可知,空格處為謂語,故填動詞discover的某種形式.主語soup和動詞discover為動賓關(guān)系,故用被動語態(tài).根據(jù)時間狀語"about ten years ago",動作發(fā)生在過去,故用一般過去時.故填was discovered.
92.has increased.考查現(xiàn)在完成時.句意為:自從那時到現(xiàn)在,他所在區(qū)域的塑料已經(jīng)增加了很多.分析句子成分可知,空格處為謂語,故填動詞increase的某種形式.根據(jù)時間狀語"Since that time",時態(tài)用現(xiàn)在完成時,即"助動詞has/have+過去分詞"形式.主語the amount of plastic 為第三人稱單數(shù),助動詞用has; increase的過去分詞為increased.故填has increased.
93.eating.考查stop doing sth.句意為:因此,他們停止吃東西,于是就餓死.分析句子成分可知,空格之前為動詞stop,故填動詞eat的某種形式.stop doing sth和stop to do sth分別表示"停止做某事"和"停下來,做某事".根據(jù)句意,本句屬于第一種句型,即stop eating,表示"停止吃東西".故填eating.
94.to recycle.考查try to do sth.句意為:這就是我們?yōu)槭裁匆M量回收塑料的原因.分析句子特點可知,本句為try to do sth句型,表示"努力做某事",故填不定式.try to recycle努力回收.故填to recycle.

點評 首先要通讀短文,掌握大意,特別要注意上下文之間的聯(lián)系,或根據(jù)所給單詞,或根據(jù)首字母提示,或根據(jù)漢語提示,選擇恰當(dāng)單詞的恰當(dāng)形式來填空,就可以確定答案.

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