Question

【題目】The truth【1】trees are vital to our life is not a secret. They provide us with food, wood and most【2】(important), oxygen. Now there is one more thing we can add to this list—blocking out harmful bacteria from water.

The discovery【3】(make) by a team【4】(consist) of scientists from the Massachusetts Institute of Technology (MIT) and high school students【5】were seeking a natural water filter—one that would help communities in developing countries that do not have【6】(accessible) to modern water filter systems.

The【7】(research), led by Professor Rohit Karnik, decided to turn to trees for help because they could allow liquid to flow through, while blocking out air bubbles.

They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood’s filtering ability by pouring water containing red dye particles of different sizes through.【8】their amazement, they found that it was effective in trapping all the articles.【9】(encourage), the team conducted【10】experiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.

Answer 1

【答案】

【1】that

【2】importantly

【3】was made

【4】consisting

【5】who

【6】access

【7】researchers

【8】To

【9】Encouraged

【10】another

【解析】試題分析：樹對我們的生活很重要，這已經(jīng)不是秘密。一隊科學(xué)家對樹進行了研究，又有了新的發(fā)現(xiàn)。

【1】that 考查同位語從句。樹對我們很重要，這個事實不是秘密。故填that。

【2】importantly 副詞修飾整個句子，最重要的是，他們提供給我們食物、木材和氧氣。故填importantly。

【3】was made The discovery和make之間是被動關(guān)系，又是過去的事情，故填was made。

【4】consisting 句意：由科學(xué)家組成的一隊人，consist of由---組成，無被動，現(xiàn)在分詞作定語，故填consisting。

【5】who high school students做先行詞，指人，后面是定語從句，缺少引導(dǎo)詞，從句缺少主語，故填who。

【6】access 固定搭配have access to ---進入的方法，故填access。

【7】researchers 此處研究者指前面提到的一隊科學(xué)家，用復(fù)數(shù)形式，故填researchers。

【8】To 固定搭配to one’s amazement使某人吃驚的是，開頭大寫，故填To。

【9】Encouraged the team和encourage之間是被動關(guān)系，“被受到鼓勵”，故填Encouraged。

【10】another 句意：這隊人受到鼓勵，他們又指導(dǎo)另一個實驗。故填another。