Fill in each of the 15 blanks in the passage with the most likely answer.
①The pollution level of the earth is increasing day by day. The governments of many countries around the world are spreading this （1）to encourage their citizens to control pollution and take environmentally friendly measures to lessen the （2）already caused. It is true that even （3）gestures of going green are making a huge difference.
②Green cleaning is one such eco-friendly way of showing that one really （4）the future of the earth. Most of the bottled cleaning powders and solutions used in our daily lives contain harmful chemicals. A number of them （5） dangerous organic compounds which are unsafe for both human beings and the natural （6）. But green cleaning promotes the use of only those cleaning ingredients that are safe for the environment.
③This technique of cleaning is gaining popularity fast as it is absolutely harmless for human health and also does not upset the （7）of the environment. It can also show the way industrial and domestic cleaning products are produced, packaged and （8） . If the cleaning products are manufactured in an eco-friendly （9）and are packed into bio-degradable packages, they may be labeled （10）“green” products.
④This concept of cleaning is not entirely new in many households. The older （11）have been using it for ages. Materials like vinegar, baking soda, and lemons have been used by our great grandmothers and grandmothers （12） they were easily available and cheaper. These natural products are again being used but now for a different （13）—a greener lifestyle.
⑤It is （14）to know just how many chemical pollutants are used unknowingly in almost all homes every day. （15）a little awareness may help to produce a sea of difference. By adopting the simple green cleaning practices in our daily lives, we can do our part for Mother Nature.
第5题
A、absorb
B、extract
C、form
D、release
【正确答案】：D
【题目解析】：他们其中的一些释放出危险的有机化合物，这些化合物不仅对人类有害，对自然资源也有害。A. absorb吸收 B. extract 摘录 C. form 形成 D. release释放