【正文】 ment .A: In my eyes, taking measures to control the number of population and making the best use of every kind of resources is the best way to decrease the pollution. And besides, finding some new recourse is also very important.B:We should make a balance between nature and human. And we also need to build nature reserve.C:I think the government should put in order factories and call on releasing reasonablly.D: Protect our Environment from our own . We can also appeal the people around us to protection .2. Does the phenomenon of latchkey children have a good effect on children’s growth? Why?A: Now the number of latchkey children is increasing. Are you a latchkey child when you are young.B: I have never experienced .C: Neither do I.D: I have been latchkey children for one year when I was in primary school. I think it was an unforgettable experience.C: What a poor little boy.A: Now it caused quite different remarks on this phenomenon. Even though you have experienced it, What do you think about.D: There are also some positive influences. Because so many parents must work and make money, they always e back home very late. We can make the most use of the time to study and make friends by ourselves.B: Latchkey children means to get little time with their parents . They can only stayed at home alone . And they will feel so lonely . C:Over time, most of these children will because unwilling to say any words with others. In additions, let children e back home alone will make them in danger.D: Yeah, maybe there will be some danger exist. I think it is also an opportunity to learn how to be independent and learn to watch out the strangers.A: Children should be given more time when they are small, but with the growth of their age, much space is needed.B: The children are in the period of development , they need their parents to lead to form a good outlook on life . So they need to stay with their parents more often .C: When growing up, children need personal space. But the family is the most needed.Unit 51. What are the ways people use to municate with each other?A: We have been in college for many years. That’s different from High school. We need to do a lot of team work. To finish these team work need cooperation. Communication play a important role in cooperation.B: Year ,munication is so important. there’re many ways people use to municate with each other. A variety of language forms are widely used, such as body language, spoken language and written language. C: But it don’t only have this way. I don’t think people forget the South Africa football world cup. Because of football, Many people who have different culture and use different language gather to South Africa. They municate with each other by the love of football.D: Football match is full of enthusiasm. During the petition, we hear some music .We may hear a Queen’s song we will rock you .That song make fans and player bee more exciting .At that time, music bee bridge linking different people.A: Nowaday the way of munication have a great change. We use letters to municate with each other at past time ,now we use the Internet .B: Little people use letter ,It seems that letters are forgotten and are put into museum. it ‘s replaced by Email, and we also use software, such as , msn C: These ways need words and language. There are other way can do it by no word and language. smile can resolve conflict, embarrassment and misunderstand. Sweet smile also express your friendly to others . And they will feel good with you .D: Besides, smile also can show your encouragement to others. When someone is upset or disappointed, if you give him or her smile, it will cheer him or her up. And there is also some gesture to show courage.A: In word ,Although you use any way to municate with others , sincerity is most important.2. Should learners aim to speak English with a nativespeaker pronunciation? Why?A: As an international language –English, we have learned it for several years. In order to live well in the future, we should improve our English spoken. Do you think learners should aim to speak English with a nativespeaker pronunciation?B: That39。t speak so