8.Overhead bridges are found in many parts of big cities,especially in places (46)where traffic is very heavy and crossing the road is dangerous.The purpose of these bridges (47)is(be) to enable pedestrians to cross roads (48)safely(safe).Overhead bridges are used in very much the (49)sameway as Zebra crossings.They are more efficient although (50)less(little) convenient because people have to climb up a long flight of steps.This is (5)inconvenient(convenient) especially to older people.When pedestrians use an overhead bridge,they do not hold up traffic.However,when they cross a busy road using a zebra crossing,traffic is held up.This is why the government has built many overhead bridges (52)to help(help) pedestrians and to keep traffic moving at the same time.For their own safety,pedestrians should be encouraged to use them instead of (53)risking (risk) their lives by dashing across the road.Old people,however,may find it a little difficult climbing up and down the steps,but it is still much safer than walking across the road with all the danger of moving traffic.Overhead bridges serve a very useful purpose.Pedestrians,both old and young,should make (54)it a habit to use them.This will prevent unnecessary accidents and (55)loss(lose) of life.

分析 本文章主要講述了在交通擁堵的城市,政府為了減緩交通壓力和保證民眾的安全,修建了許多的立交橋,以及與之相關(guān)的部分信息.

解答 46.where     47.is       48.safely    49.same    50.less   51.inconvenient  52.to help    53.risking   54.it        55.loss
46.where 本題考查定語從句.先行詞是 places,定語從句不缺成分,此處需要填入表示地點的關(guān)系副詞 where.故正確答案為 where.
47.is   本題考查動詞.本句話主語是 The purpose 為第三人稱單數(shù),所以使用 is.故正確答案為 is.
48.safely 本題考查副詞.填空處前謂語動詞為 cross,填空處用來修飾 cross,意為"安全地過馬路",故使用副詞形式來修飾動詞.故正確答案為 safely.
49.same  本題考查形容詞.結(jié)合句意,上文提到 Overhead bridges are used in very much 意為"過街天橋經(jīng)常被使用",下文提及 way as zebra crossings 意為"和斑馬線的方式",兩種方式都是用來安全地過馬路,所以兩種方式是一樣的(same).故正確答案為 same.
50.less  本題考查比較級.上文提及 more efficient 使用了肯定語氣的比較級,再結(jié)合下文 people have to climb up a long flight of steps 意為"人們必須要爬很長一段樓梯",所以可以推測此處為較不方便,否定形式的比較級.故正確答案為 less.
51.inconvenient   本題考查形容詞.本句主語為 This 代指上一句的"爬很多的樓梯",結(jié)合下文的 especially to older people 意為"尤其對于老人",由此可知,爬很多的樓梯對于老人來說十分的不方便(inconvenient).故正確答案為 inconvenient.
52.to help   本題考查非謂語動詞.結(jié)合上文 This is why the government has built many overhead bridges 以及下文  pedestrians 可知,政府建造很多過街天橋的原因是來幫助行人,表示目的使用非謂語動詞中的不定式.故正確答案為 to help.
53.risking   本題考查動詞.填空處前方為詞組 instead of,of 作為介詞后面連接的動詞要變成動名詞的形式.故正確答案為 risking.
54.it   本題考查賓語補足語.make 作為本句謂語動詞,填空處后有 a habit to use them,可以推測 a habit to use them 是賓語補足語進一步解釋填空處的賓語,to use them 為真正賓語,填空處應(yīng)該填入形式賓語 it.故正確答案為 it.
55.loss 本題考查名詞.填空處后有介詞 of,of 后接名詞 life 意為"生活",給出的詞為 lose 是動詞形式,應(yīng)該選擇 lose 的名詞的形式來和 life 構(gòu)成所屬關(guān)系,即"生活的損失",lose 的名詞形式為 loss.故正確答案為 loss.

點評 語法填空是通過語篇在語境中考查語法知識的運用能力,在解題前應(yīng)快速瀏覽短文掌握大意,在讀懂短文的基礎(chǔ)上,結(jié)合短文提供的特定的語言環(huán)境去逐句分析.要解決好語法填空,離不開堅實的語法知識,有了堅實的語法知識才能對語言進行正確的分析和判斷,從而答對題目.

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