Question

【题目】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 【3】surface. 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 such【6】insects，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.【9】life will continue on the earth for millions of years to come will depend on whether this problem can【10】 (solve)．

Answer 1

【答案】

【1】a

【2】They

【3】its

【4】harmful

【5】development

【6】as

【7】over

【8】which

【9】Whether

【10】be solved

【解析】这是一篇说明文。介绍了宇宙大爆炸后地球的形成，以及地球上各种成分、生物的出现过程。

【1】“The earth was just ___1___ cloud of dust after the “Big Bang”．”考查短语“a cloud of”一团、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.”根据语境可知，这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.”根据语境可知，水出现在地球表面。这里应该填地球的所有各形式，且为一个单词，故用it，所有格为its。故填its。

【4】“It allowed the earth to dissolve ___4___(harm)gases.”gases为名词，气体，这里的harm修饰名词，应该使用形容词形式，故填harmful。

【5】“This encouraged the ___5___ (develop)of early shellfish and fish.”这促进了早期甲壳类动物和鱼类的进化。这里的进化应为名词形式，“the development of”…的进化，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，由语境可知此处是列举一些陆地生物，故填as。

【7】“Small clever animals spread all ___7___ the earth.” 考查固定搭配“all over”到处都是，由语境可知地球上到处都是小型智慧生物，故填over。

【8】“They are putting too much carbon dioxide into the atmosphere，___8___ prevents heat from escaping from the earth into space.”考查非限制性定语从句。由语境可知，是前文的二氧化碳阻止了热量的流失，故空格处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)．”根据语境可知，这句话的意思为（ ）生命能在地球上继续存在成百上千万年，要取决于这个问题能否被解决。可知空格处也应该表示“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为名词，solve为动词，两者为被动的关系，故填be solved。