【題目】The earth was just 1 cloud of dust after the “Big Bang”.The earth exploded loudly with fire and rock.2 were in time to produce many things,which were to make the earth’s atmosphere. As the earth cooled down,water began to appear on 3surface. It allowed the earth to dissolve 4(harm)gases. Then life began to develop.

Small plants multiplied and filled the first oceans and seas with oxygen. This encouraged the 5 (develop)of early shellfish and fish. Land animals such6insects,reptiles and dinosaurs appeared after green plants appeared. Small clever animals spread all 7 the earth. They are putting too much carbon dioxide into the atmosphere,8 prevents heat from escaping from the earth into space.9life will continue on the earth for millions of years to come will depend on whether this problem can10 (solve).

【答案】

1a

2They

3its

4harmful

5development

6as

7over

8which

9Whether

10be solved

【解析】這是一篇說明文。介紹了宇宙大爆炸后地球的形成,以及地球上各種成分、生物的出現(xiàn)過程。

1“The earth was just ___1___ cloud of dust after the “Big Bang”.”考查短語“a cloud of”一團(tuán)、一朵。故填a。

2“The earth exploded loudly with fire and rock.___2___ were in time to produce many things,which were to make the earth’s atmosphere.”根據(jù)語境可知,這里要填的是代指前面提到的“fire and rock”,故填They。

3“As the earth cooled down,water began to appear on ___3___surface.”根據(jù)語境可知,水出現(xiàn)在地球表面。這里應(yīng)該填地球的所有各形式,且為一個(gè)單詞,故用it,所有格為its。故填its。

4“It allowed the earth to dissolve ___4___(harm)gases.”gases為名詞,氣體,這里的harm修飾名詞,應(yīng)該使用形容詞形式,故填harmful。

5“This encouraged the ___5___ (develop)of early shellfish and fish.”這促進(jìn)了早期甲殼類動物和魚類的進(jìn)化。這里的進(jìn)化應(yīng)為名詞形式,“the development of”…的進(jìn)化,故填development。

6“Land animals such____6____insects,reptiles and dinosaurs appeared after green plants appeared.”考查固定搭配“such as”例如,由語境可知此處是列舉一些陸地生物,故填as。

7“Small clever animals spread all ___7___ the earth.” 考查固定搭配“all over”到處都是,由語境可知地球上到處都是小型智慧生物,故填over。

8“They are putting too much carbon dioxide into the atmosphere,___8___ prevents heat from escaping from the earth into space.”考查非限制性定語從句。由語境可知,是前文的二氧化碳阻止了熱量的流失,故空格處代指二氧化碳的排放,故填which。

9____9____life will continue on the earth for millions of years to come will depend on whether this problem can____10____ (solve).”根據(jù)語境可知,這句話的意思為( )生命能在地球上繼續(xù)存在成百上千萬年,要取決于這個(gè)問題能否被解決?芍崭裉幰矐(yīng)該表示是否,故填Whether。

10____9____life will continue on the earth for millions of years to come will depend on whether this problem can____10____ (solve).”problem為名詞,solve為動詞,兩者為被動的關(guān)系,故填be solved。

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