2.Over time I have been changed quite a lot.I began (56)as a calculating machine in 1642.It took nearly two hundred years(57)before I was built as an analytical machine.Then in 1936Alan Turing wrote a book and built a universal machine to solve any difficult mathematical problems.From then on,I grew rapidly both in sizes and brainpower.By the 1970s,I (58)had grown (grow)as large as a room and I wonder if I would grow any larger.(59)However,this reality also worried my designers.Luckily,(60)with  time going by,I have been made smaller.And I (61)have been used (use) in offices and homes since the 1970s.
These changes would not be possible without my improved memory,(62)which became so large that I couldn't believe it.In the early1960s,they gave me a family(63)connected(connect) by a network,enabling us to share my knowledge with others.Since the 1970s,many new (64)applications (apply) have been found for me and I have become important in many fields.I am now (65)truly (true) filled with happiness that I am a devoted friend and helper of the human race.

分析 文章以第一人稱的口吻介紹了計(jì)算機(jī)的發(fā)展歷史.計(jì)算機(jī)從一開(kāi)始出現(xiàn),到現(xiàn)在的廣泛應(yīng)用,其中經(jīng)歷了巨大的發(fā)展和演變.

解答 56.a(chǎn)s;考查介詞.句意表達(dá)的是1642年我一開(kāi)始的身份是計(jì)算機(jī),as以某種身份.          
57.before;考查句型結(jié)構(gòu).時(shí)間段+before+從句,表示多久以后才…;句意表達(dá)的是花了將近兩百年的時(shí)間我才被改造成分析儀.   
58.had grown;考查時(shí)態(tài).句中by the 1970s表示到過(guò)去某個(gè)時(shí)間為止已經(jīng)完成的動(dòng)作,是過(guò)去完成時(shí)態(tài)的用法.    
59.However;考查副詞.句意表達(dá)的是轉(zhuǎn)折,且句中有逗號(hào)分隔,要用表示轉(zhuǎn)折關(guān)系的副詞however來(lái)構(gòu)成.         
60.with;考查介詞.句中time后接分詞,說(shuō)明不能填連詞;句意表達(dá)的是伴隨情況,要用with來(lái)構(gòu)成獨(dú)立主格結(jié)構(gòu),意思是隨著時(shí)間的推移.  
61.have been used;考查時(shí)態(tài)和語(yǔ)態(tài).句中use與主語(yǔ)I構(gòu)成動(dòng)賓關(guān)系,要用被動(dòng)語(yǔ)態(tài);時(shí)間狀語(yǔ)since the 1970s表示從過(guò)去到現(xiàn)在,是現(xiàn)在完成時(shí)態(tài)的用法,因此use要用現(xiàn)在完成時(shí)態(tài)的被動(dòng)語(yǔ)態(tài).    
62.which;考查連詞.句中became so large that I couldn't believe it修飾名詞memory,是一個(gè)定語(yǔ)從句;從句缺少主語(yǔ),且先行詞memory指物,要用which來(lái)引導(dǎo).    
63.connected;考查分詞.句中connect作family的后置定語(yǔ),要用非謂語(yǔ)動(dòng)詞;connect與family構(gòu)成動(dòng)賓關(guān)系,要用表示被動(dòng)的過(guò)去分詞來(lái)構(gòu)成.     
64.a(chǎn)pplications;考查名詞.句中apply作主語(yǔ),要用名詞形式;前面有many修飾,application要用復(fù)數(shù).    
65.truly;考查副詞.句中true修飾動(dòng)詞filled,要用副詞形式.

點(diǎn)評(píng) 語(yǔ)法填空題是考查學(xué)生的語(yǔ)言運(yùn)用能力.解題時(shí),要在理解文章的基礎(chǔ)上,靈活運(yùn)用語(yǔ)法知識(shí),如詞性,時(shí)態(tài),名詞單復(fù)數(shù),連接詞,代詞,冠詞等判斷空白處應(yīng)填寫的內(nèi)容.答完后,還要通讀全文,核對(duì)所填單詞形式是否正確,是否符合語(yǔ)境.

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