Question

The earth is a special planet in the solar system. The explosion of the earth produced carbon, nitrogen, vapor and other gases,    【小題1】   (make) the earth’s atmosphere. What is even more important is _【小題2】  as the earth cooled, water which is fundamental to the  【小題3】  （develop） of life appeared and stayed on the surface. The continued presence of water allowed the earth to dissolve     【小題4】  (harm) gases into the oceans and this produced a chain reaction which made it possible for life to develop.
Many millions of years later, the _【小題5】  （arrive） of small plants encouraged the development of early shellfish    【小題6】   all sorts of fish. Then, with the first green plants appearing on land, land animals appeared and dinosaurs developed and existed on the earth for millions of years. Then Dinosaurs’ sudden disappearance made the rise of mammals possible on the earth. They were different from all life forms   【小題7】   ever existed in the past because they produced young from within their bodies. Finally, some small clever animals with hands and legs ___【小題8】___(appear) and spread all over the earth. Thus they, in their turn, have become    【小題9】   most important animals. However, they are putting too much carbon dioxide into the atmosphere. So for millions of years to come,    【小題10】   life will continue on the earth will depend on whether the present problem can be solved.

Answer 1

【小題1】 making   
【小題2】 that   
【小題3】development   
【小題4】harmful  
【小題5】arrival
【小題6】 and      
【小題7】that   
【小題8】 appeared      
【小題9】the      
【小題10】whether

解析試題分析：
【小題1】making  本句中的現(xiàn)在分詞making在句中做結(jié)果狀語，表示意料之中的結(jié)果，地球的爆炸產(chǎn)生了多種氣體，這些氣體形成了地球的大氣層。
【小題2】 that  本句是一個(gè)表語從句，that引導(dǎo)起這個(gè)表語從句，在句中不充當(dāng)任何成分，只起引導(dǎo)和連接作用。
【小題3】 development 橫線前面有the表示這里應(yīng)該使用名詞development的形式，指人類生命的發(fā)展。
【小題4】harmful 后面有名詞gases說明這里應(yīng)該使用形容詞harmful對(duì)名詞進(jìn)行修飾限制。
【小題5】arrival 前面有定冠詞the后面有介詞of說明橫線要填寫的是名詞arrival。
【小題6】 and    小型植物的出現(xiàn)導(dǎo)致了貝類動(dòng)物和各種魚類的發(fā)展。這兩個(gè)短語是并列關(guān)系，故使用and連接。
【小題7】that 本句是一個(gè)定語從句，that指代前面的先行詞life forms在句中做主語。
【小題8】 appeared  本空的動(dòng)詞appeared是一個(gè)謂語動(dòng)詞與后面的spread是并列結(jié)構(gòu)，都使用過去時(shí)。
【小題9】the   后面有最高級(jí)most的形式，故使用the。
【小題10】whether 本句是一個(gè)主語從句。地球上的生命是否能繼續(xù)取決于現(xiàn)在的問題是否能夠被解決。
考點(diǎn)：考查語法填空
點(diǎn)評(píng)：本文考查了學(xué)生在上下文語境中運(yùn)用詞匯和語法的能力，答題中注意句子中人稱和數(shù)是否一致，時(shí)態(tài)是否一致。各種詞性之間的區(qū)別以及一些常用句型，固定短語的應(yīng)用。一般的這類題型不會(huì)出現(xiàn)太復(fù)雜的單詞和句子，這類題型考查的就是我們的基礎(chǔ)知識(shí)。平時(shí)應(yīng)注重積累，熟記一些句型及慣用結(jié)構(gòu)。