2.China has the (76)largest population in the world,and about one (77)fifth[fifθ]of the people in the world live in China.Because of the large population,there is(78)lessliving space for (79)each(每個) family.And it's(80)difficult[?difik?lt]for lots of people to find jobs.The large population also (81)causes (引起,導(dǎo)致) many other difficulties for the whole nation.For example,we (82)areshort of energy and water.Most cities are (83)more crowded than before.And the traffic is much(84)heavier['hevi?],the large population  has become a (85)serious (嚴(yán)重的)problem.

分析 中國擁有世界上最多的人口,世界上大約五分之一的人生活在中國.由于人口眾多,每個家庭的生活空間就相對較少,很多人找工作也有困難.同時,人口眾多對整個國家都造成許多其他方面的困難.例如,中國要提供足夠的能源和水來滿足人們的日常需求就很吃力;大多數(shù)城市比以前更擁擠,交通越繁忙.自然的環(huán)境變得越來越糟糕.龐大的人口一直是個嚴(yán)重的問題.

解答 76.largest.最高級考查.結(jié)合常識可知中國是世界上人口最多的,結(jié)合首字母用最高級largest,故答案是largest.     
77.fifth.序數(shù)詞考查.結(jié)合所給的音標(biāo)和前面的one可知這里用序數(shù)詞fifth,one fifth五分之一,故答案是fifth.      
78.less.比較級考查.結(jié)合句意因為人口多,人們的生活空間將會更少,space是不可數(shù)名詞故用比較級less,故答案是less.
79.each.形容詞考查.結(jié)合所給的提示用形容詞each修飾family,故答案是each.           
80.difficult.形容詞考查.結(jié)合所給的音標(biāo)提示和句子結(jié)構(gòu),這里用形容詞difficult困難的,it's+adj+for sb+to do sth對某人來說做某事是怎樣的,故答案是difficult.
81.causes.動詞考查.這里是一般現(xiàn)在時,表示引起用動詞cause,主語是三單,故causes.      
82.a(chǎn)re.動詞考查.這里是一般現(xiàn)在時,be short of 缺乏,主語we復(fù)數(shù),故are.       
83.more.比較級考查. than與比較級連用,crowded是多音節(jié)單詞,比較級是加上more,故答案是more.   
84.heavier.比較級考查.結(jié)合句意是說交通更加擁擠的多,結(jié)合音標(biāo)用比較級heavier,故答案是heavier.        
85.serious.形容詞考查.problem是名詞,前面用形容詞,嚴(yán)重的serious,故答案是serious.

點評 讀短文,確定語義,判斷詞形.先易后難  易:固定詞組、常見句型或明顯的語法結(jié)構(gòu)   難:名詞、動詞、形容詞、副詞,注意聯(lián)系上下文

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