【正文】 n and the environment2) the urgency of environmental protection3) ways to protect the environment▆ Sample essayMy Understanding of Environmental ProtectionMan and the environment are closely related. Man relies on the environment for water, food and shelter. A harmonious relationship between man and the environment is essential for human survival on the earth.However, man and the environment have never been on such bad terms as they are now. As society develops, man’s transformation of nature has severely polluted his living environment. Deforestation leads to changes in rainfall patterns, causing devastating floods, droughts and sandstorms. The discharge of chemical pollutants endangers our health and the lives of other beings. And mass production has resulted in the shortage of irreplaceable natural resources such as coal and oil. If we take no immediate and effective steps to protect our environment, human beings may be the next species to bee extinct.We should do our best to protect our environment by planting more trees, taking care of wildlife, reducing industrial wastes, using renewable energy, and imposing heavy fines on environmentallyunfriendly activities, so as to preserve the environment for future generations.(167 words) Unit Two Man and TechnologyEnhance Your Language AwarenessWords in Action▆ Working with Words and Expressions1. In the box below are some of the words you have learned in this unit. Complete the following sentences with them. Change the form where necessary. ▆ Answers: 1) productivity2) phenomenon3) isolation4) gradual5) opponent6) advent7) genetic8) universal9) extreme10) nasty11) boom12) formal13) survey14) Similarly15) modify16) rough2. In the box below are some of the expressions you have learned in this unit. Do you understand their meanings? Do you know how to use them in the proper context? Now check for yourself by doing the blankfilling exercise. Change the form where necessary.▆ Answers: 1) at the same time2) are stuck with3) for certain4) make no difference5) on average6) when it es to7) are better off8) built into9) e to mind10) close to11) in favor of▆ Increasing Your Word Power4. You will read six pairs of words which are similar in meaning but are different in usage. Reflect on the differences in usage between the words in each group and fill in each blank with a proper one. Change the form if necessary. ▆ Answers: 1) exterior2) external3) delightful4) pleasant5) separate6) isolate7) pany8) panion9) acquire10) learn11) ripe12) mature5. Fill in each blank with one of the words listed below in the appropriate form, paying special attention to the meaning and spelling.▆ Answers: 1) accept2) oppression3) loss4) excerpts5) depression6) loose7) except8) expectations9) lose10) suppress6. Words that e from the same root may be said to belong to the same family. Getting acquainted with each member of the family is a sure way to increase your word power. Now plete the following table with words of the same family. You may consult a dictionary if necessary.▆ Answers:1) technology2) eternity3) miracle4) relevance5) analysis6) luxurious7) leisurely / leisured8) subjective9) prosperous10) innovativeGRAMMAR IN CONTEXTTask 1: Complete the following sentences with appropriate connectives listed in the following table.▆ Answers: 1) Whatever2) Although / Though3) whereas4) However5) though / although6) Granted / Granting that7) as8) WhileTask 2: Translate the following sentences into English.▆ Answers for reference: 3. Though it was raining hard, yet they went on playing football.4. You will have to attend the mencement whether you are free or busy.5. She leaves her bedroom windows open, however cold it is.6. We will make a trip even if / though the weather is bad.7. No matter who / Whoever you are, you must abide by the law.8. Difficult as the job was, they decided to accept it.9. No matter what I say or how I say it, he always thinks I?m wrong.10. She seems to have a ready answer, whenever / no matter when I ask her a question.ClozeComplete the following passage with words chosen from this unit. The initial letter of each is given.▆ Answers:1) emphasize2) opposite3) improved4) luxuries5) benefited6) obviously7) consciously8) fractures9) eternal10) groundbreaking11) entitled12) correlation13) depends14) exclusivelyTranslation 1. Translate the following sentences into English, using the words and expressions given in brackets.▆ Answers for reference:1) He really knows a lot about theory, but when it es to actual work, he seems to be quite ignorant.2) The latest survey shows /showed that the majority of the citizens support / supported the government’s plan to build a new library.3) The two countries could reach agreement successfully on scientific and technological cooperation because several factors favorable to their cooperation had been at work.4) I saw the film when I was in the primary school, but the title just won’t e to mind for the moment.5) He has been stuck with heavy debt though he works about twelve hours every day on average.6) Is it necessary to know his height? To me, it is not relevant to whether he can be a good lawyer or not.7) The cupboard is built into the wall so that it both saves space and is convenient to use.8) These workers earn more than we do, but the other side of the coin is that their job is more dangerous.9) Helen majors in economics at the university and at the same time she studies philosophy as her second major.10) What is most important is that you must find out and solve the problems by yourselves. It makes no difference whether I go there or