英語四級選詞填空練習(xí)題原文：

　　50 , a biodegradable (生物可降解的)mobile phone was introduced by scientists. It is hoped that the new type of phone will encourage 51 to recycle.

　　Scientists have come up with a new material over the last five years. It looks like any other 52 and can be hard or soft. and able to change shape. Overtime it can also break down into the soil without giving out any toxic 53 . British researchers used the new material to develop a phone cover that contains a sunflower seed. When this new type of cover turns into waste, it 54 nitrates(硝酸鹽). These feed the seed and help the flower grow.

　　Engineers have designed a small 55 window to hold the seed. They have made sure it only grows when the phone is thrown away.

　　"We've only put sunflower seeds into the covers so far. But we are working with plant 56 to find out which flowers would perform best. Maybe we could put roses in next time," said one scientist.

　　英語四級選詞填空練習(xí)題選項(xiàng)：

　　[A] Recently [B] consumer [C] chemical [D] environment [E] combine

　　[F] transparent [G] buy [H] companion [I] experts [J] forms [K] bury

　　[L] paper [M] paper [N] plastic [O] Usually

　　英語四級選詞填空練習(xí)題答案解析：

　　47. E 該空應(yīng)填入動(dòng)詞原形，選項(xiàng)中只有E、G和K是動(dòng)詞原形。文章前兩句點(diǎn)明兩者是截然不同的東西，這里用but一轉(zhuǎn)，講能不能把兩者結(jié)合起來，E最符合文章。

　　48. D 本題需通讀下文，對整篇文章有所了解才能得出答案。由下文的相關(guān)信息詞biodegradable (生物可降解的)，recycle(回收)等可知D最符合文意。

　　49. K 該名前半句講手機(jī)報(bào)廢，所以極可能是把廢棄的手機(jī)扔進(jìn)或埋進(jìn)花園，動(dòng)詞原形的E. G. K中，K最符合文意。

　　50. A 分析空格所在句的句子結(jié)構(gòu)，空格處應(yīng)充當(dāng)狀語成分且需大寫，結(jié)合詞義，選項(xiàng)中A符合文意。

　　51. B 結(jié)合句意“這種新型手機(jī)有望激勵(lì)________進(jìn)行回收利用”可推知此空應(yīng)填入表示人的名詞，故B最符合文意。

　　52. N 前句提到科學(xué)家開發(fā)了一種新材料，接著談到這種新材料像其他________一樣容易塑形，這正是塑料的特性，故選N。

　　53. C 空格所在句意為“隨著時(shí)間的流逝，它也能分解到土壤里，而且不會(huì)釋放出任何有毒的__ ______”，分解多半與化學(xué)有關(guān)，所以空格處應(yīng)填入chemicals(化學(xué)物質(zhì))。

　　54. J 該空需填入第三人稱單數(shù)的動(dòng)詞形式，選項(xiàng)中只有J符合文意。

　　55. F 該空需填入一個(gè)形容詞，選項(xiàng)中只有F和O是形容詞，F(xiàn)(透明的)符合文意。因?yàn)橹挥型该鞯牟欧奖愎こ處熡^察，才有下面的make sure一說。

　　56. I 由句意“但我們(工程師)現(xiàn)在正和植物________合作…”可知，空格處應(yīng)選表一類人的名詞，且用可數(shù)形式，B、I中I符合文意。

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