Dr.Jack Todd is very interested in clean water .__小題1:_,so it's natural that he is to developer of a small and affordable system(系統(tǒng)）to clean waste water, His “Living  Machine" can clean wastewater in your home or in your business.
__小題2:_ The wastewater goes into a big plastic tank where bacteria(細菌）start to break down the waste.A few days later after it is dealt with, the water is brought into a greenhouse filled with plants and fish.With the help of sunlight, the plants and animals remove more chemicals from the water,making it cleaner,Then the water can be reused for washing or bathing _小題3:__ but the water is clean enough for watering the flowing, washing the dog, or even for bathing or swimming.
The advantage of this technology is that it is affordable and good for the environment. __小題4:__. It can help to use less fresh water, and it can help keep the water supply unpolluted.
A.    If enough homes and businesses use “Living Machines”
B.     People like to plant trees around their houses
C.     He is also interested in saving money
D.    It cannot be used for drinking or cooking
E.     The “Living Machine” is a system for cleaning wastewater
 

小題1:C
小題2:E
小題3:D
小題4:A

試題分析：“Living  Machine"是Jack發(fā)明的一臺凈水設(shè)備，通過它凈化后的水可以用來洗衣服，洗澡。
小題1:根據(jù)下文so it's natural that he is to developer of a small and affordable system(系統(tǒng)）to clean waste water可知Jack準備發(fā)明一個小而實惠的凈水設(shè)備故選C，對省錢非常感興趣。
小題2:根據(jù)下文The wastewater goes into a big plastic tank where bacteria(細菌）start to break down the waste.可知這個發(fā)明的工作原理，故應(yīng)介紹它是做什么用的，故選E。
小題3:根據(jù)上下文的理解此句介紹的是凈化后的水的用途，有選擇項的提示可知選擇D，這個水不用用來飲用。
小題4:根據(jù)語境可知此部分介紹使用Living Machine”的意義，故選A。
點評：對于此類題型的解答，可以將整個文段首先瀏覽一遍，大概理解意思。答題過程中，根據(jù)所提供的答語或是后文進行作答，同時，做題過程中也可以使用排除法，將選項帶到文章中逐一的作答，答完后注意通讀檢查是否符合邏輯，語義順暢。
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