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            [00:00.48]Unit 13 We're trying to save the earth!
[00:05.14]一、听句子,选择与句子内容相对应的图片。 每个句子读两遍。
[00:16.77]1.Air pollution is harmful to people's health.
[00:26.79]2.The river is polluted.
[00:36.22]3.Many trees were cut down to build houses.
[00:46.69]4.I think sharks are the strongest in their food chain.
[00:59.90]5.The young girl likes to use old jeans to make handbags.
[01:12.65]二、听对话和问题,根据所听内容,选择最佳答案。 对话和问题都读两遍。
[01:26.74]6.Hi, Mark. Why not go fishing with us this afternoon?
[01:33.10]I don't want to go, because the river is really dirty.
[01:37.46]Question:Why doesn't Mark want to go fishing?
[01:45.42]Hi, Mark. Why not go fishing with us this afternoon?
[01:50.67]I don't want to go, because the river is really dirty.
[01:54.96]Question:Why doesn't Mark want to go fishing?
[02:05.60]7.Can you tell us about some of the problems you've seen?
[02:11.70]Oh, I think one is that the air is badly polluted. I can hardly see the blue sky.
[02:17.76]Question:What pollution are they talking about?
[02:24.52]Can you tell us about some of the problems you've seen?
[02:29.12]Oh, I think one is that the air is badly polluted. I can hardly see the blue sky.
[02:35.84]Question:What pollution are they talking about?
[02:45.68]8.What should we do to help protect the environment?
[02:51.12]We can do many things, such as saving paper and stopping driving cars.
[02:56.30]Question:What does the man suggest?
[03:02.21]What should we do to help protect the environment?
[03:06.55]We can do many things, such as saving paper and stopping driving cars.
[03:11.67]Question:What does the man suggest?
[03:22.76]9.The lake used to be clean. It was the nicest lake in town.
[03:29.90]Yes,but now it's really dirty and smells terrible.
[03:34.30]Qusetion:What did the lake use to be like?
[03:42.80]The lake used to be clean. It was the nicest lake in town.
[03:48.72]Yes,but now it's really dirty and smells terrible.
[03:52.92]Question:What did the lake use to be like?
[04:01.80]10.Do we need to take our own cloth bags when we go shopping?
[04:08.39]Yeah, free plastic bags aren't allowed to use now.
[04:13.30]Question:What will they take when they go shopping?
[04:21.68]Do we need to take our own cloth bags when we go shopping?
[04:27.30]Yeah, free plastic bags aren't allowed to use now.
[04:32.15]Qusetion:What will they take when they go shopping?
[04:43.73]三、听短文,根据短文内容,判断下列句子正误,正确的用“A”表示,不正确的用“B”表示。 短文读两遍。 听短文前,你们有20秒钟的时间阅读下列句子。
[05:26.20]In today's world, almost everyone knows that air pollution and water pollution are harmful to people's health. 
[05:32.16]However, not all the people know that noise is also a kind of pollution, and that is harmful to human health, too.
[05:39.68]People who work and live under noisy conditions usually become deaf. 
[05:44.25]Today, scientists believe that 10% of the workers in Britain are becoming deaf because of the noise in the places where they work. 
[05:51.53]Plenty of people living near airports also become deaf. 
[05:55.43]Recently it was discovered that many teenagers in America could hear no better than 65-year-old persons, 
[06:01.29]because these young people like to listen to pop music and some pop music is a kind of noise.
[06:14.40]In today's world, almost everyone knows that air pollution and water pollution are harmful to people's health. 
[06:20.56]However, not all the people know that noise is also a kind of pollution, and that is harmful to human health, too.
[06:28.30]People who work and live under noisy conditions usually become deaf. 
[06:32.67]Today, scientists believe that 10% of the workers in Britain are becoming deaf because of the noise in the places where they work. 
[06:39.88]Plenty of people living near airports also become deaf. 
[06:43.89]Recently it was discovered that many teenagers in America could hear no better than 65-year-old persons, 
[06:49.69]because these young people like to listen to pop music and some pop music is a kind of noise.
[07:01.61]四、听对话,根据对话内容完成下列句子,每空词数不限。 对话读三遍。 听对话前,你们有20秒钟的时间阅读下列句子。
[07:38.98]Hi, Frank!
[07:40.46]Hi, Helen! Long time no see.
[07:42.57]What are you busy doing these days?
[07:45.49]We're having a new project —Green Hometown, We Are in Action. 
[07:50.37]Oh, what's it about?
[07:52.95]It's about how to protect the environment.
[07:55.85]Environment? What do you actually mean?
[07:59.21]Um...I mean we have two main problems in our hometown. One is that the rivers are badly polluted. The water is very dirty.
[08:07.36]What's the other one?
[08:09.10]Oh, the other is that the trees in the mountains are getting fewer and fewer. 
[08:13.31]It's true. We should do something to make the rivers cleaner and the mountains greener. 
[08:20.41]You are right. First, we should stop littering into the rivers and clean them.
[08:24.85]And next?
[08:27.40]We should also plant more trees. 
[08:29.67]Yes. Everyone is supposed to help make a better hometown.
[08:35.00]I agree with you. Everyone should play a part.
[08:38.23]Can I join you?
[08:39.99]Why not? Welcome! Let's take action.
[08:51.49]Hi, Frank!
[08:52.86]Hi, Helen! Long time no see.
[08:55.12]What are you busy doing these days?
[08:58.70]We're having a new project —Green Hometown, We Are in Action. 
[09:02.97]Oh, what's it about?
[09:05.54]It's about how to protect the environment.
[09:08.35]Environment? What do you actually mean?
[09:11.80]Um...I mean we have two main problems in our hometown. One is that the rivers are badly polluted. The water is very dirty.
[09:19.95]What's the other one?
[09:21.74]Oh, the other is that the trees in the mountains are getting fewer and fewer. 
[09:25.92]It's true. We should do something to make the rivers cleaner and the mountains greener. 
[09:32.90]You are right. First, we should stop littering into the rivers and clean them.
[09:37.45]And next?
[09:39.52]We should also plant more trees. 
[09:42.24]Yes. Everyone is supposed to help make a better hometown.
[09:47.53]I agree with you. Everyone should play a part.
[09:50.75]Can I join you?
[09:52.47]Why not? Welcome! Let's take action.
[10:06.79]Hi, Frank!
[10:08.17]Hi, Helen! Long time no see.
[10:10.45]What are you busy doing these days?
[10:13.37]We're having a new project —Green Hometown, We Are in Action. 
[10:18.28]Oh, what's it about?
[10:20.89]It's about how to protect the environment.
[10:23.67]Environment? What do you actually mean?
[10:27.80]Um...I mean we have two main problems in our hometown. One is that the rivers are badly polluted. The water is very dirty.
[10:35.27]What's the other one?
[10:36.93]Oh, the other is that the trees in the mountains are getting fewer and fewer. 
[10:41.14]It's true. We should do something to make the rivers cleaner and the mountains greener. 
[10:48.25]You are right. First, we should stop littering into the rivers and clean them.
[10:52.74]And next?
[10:54.85]We should also plant more trees. 
[10:57.54]Yes. Everyone is supposed to help make a better hometown.
[11:02.85]I agree with you. Everyone should play a part.
[11:06.50]Can I join you?
[11:07.90]Why not? Welcome! Let's take action.
[11:20.67]一、听句子,选择与句子内容相对应的图片。 每个句子读两遍。
[11:32.87]1.The bicycle is a kind of transportation which doesn't cause pollution.
[11:53.51]2.Hunting is one of the most terrible reasons for the disappearance of wild animals.
[12:09.22]3.Don't forget to turn off the lights before you leave.
[12:25.22]4.Factories are not allowed to discharge waste water into the river.
[12:37.40]5.It's difficult for parents with young children to use public transportation. 
[12:56.37]二、听对话和问题,根据所听内容,选择最佳答案。 对话和问题都读两遍。
[13:09.23]6.What should we do to help protect the environment?
[13:13.34]We shouldn't use paper napkins and take our own bags while shopping.
[13:19.72]Question:What should we do to help protect the environment?
[13:26.52]What should we do to help protect the environment?
[13:30.30]We shouldn't use paper napkins and take our own bags while shopping.
[13:36.55]Question:What should we do to help protect the environment?
[13:43.33]7.I think bike riding is good for health and it doesn't cost anything.
[13:48.33]I agree with you. We'd better advise our father to go to work by bike as well.
[13:55.87]Question:What's their relationship?
[14:01.17]I think bike riding is good for health and it doesn't cost anything.
[14:05.57]I agree with you. We'd better advise our father to go to work by bike as well.
[14:13.11]Question:What's their relationship?
[14:19.81]8.Some wild animals are in great danger now. We should do something to save them.
[14:27.98]You're right. We should protect the forest and plant more trees to save them.
[14:33.44]Question:What does the man mean?
[14:41.52]Some wild animals are in great danger now. We should do something to save them.
[14:48.81]You're right. We should protect the forest and plant more trees to save them.
[14:53.98]Question:What does the man mean?
[15:02.78]9.Why don't you answer my question?
[15:06.93]Sorry, I can't hear you clearly. I think loud music around my house hurts my ears. 
[15:13.65]Question:What makes the man not hear clearly?
[15:21.77]Why don't you answer my question?
[15:24.80]Sorry, I can't hear you clearly. I think loud music around my house hurts my ears. 
[15:31.50]Question:What makes the man not hear clearly?
[15:40.57]10.Have you heard of John Smith? He built himself a house which was made of rubbish.
[15:46.58]Yeah. He protects the environment  in his own way.
[15:51.71]Question:How does John Smith protect the environment?
[15:59.60]Have you heard of John Smith? He built himself a house which was made of rubbish.
[16:04.31]Yeah. He protects the environment  in his own way.
[16:09.46]Question:How does John Smith protect the environment?
[16:19.12]三、听短文,根据短文内容,判断下列句子正误,正确的用“A”表示,不正确的用“B”表示。 短文读两遍。 听短文前,你们有20秒钟的时间阅读下列句子。
[17:01.80]The world uses about a thousand million tons of water a day. Water is a human right and everyone should have their share.
[17:09.60]Yet more than 700 million people around the world have trouble getting clean and safe water. Treating waste water is a good way to provide fresh water for us.
[17:18.67]And it also helps the environment by keeping waste out of rivers and oceans. 80% of waste water around the world is not treated at all, and it is running into oceans. 
[17:28.56]But now we have got the technology to treat and reuse the waste water. Scientists are working to create a less costly technology. 
[17:35.80]They want to produce 20 times more clean water and make sure everyone has enough water. But for now, the world still does not have enough water for everyone.
[17:52.72]The world uses about a thousand million tons of water a day. Water is a human right and everyone should have their share.
[18:01.12]Yet more than 700 million people around the world have trouble getting clean and safe water. Treating waste water is a good way to provide fresh water for us.
[18:10.20]And it also helps the environment by keeping waste out of rivers and oceans. 80% of waste water around the world is not treated at all, and it is running into oceans. 
[18:20.10]But now we have got the technology to treat and reuse the waste water. Scientists are working to create a less costly technology. 
[18:27.47]They want to produce 20 times more clean water and make sure everyone has enough water. But for now, the world still does not have enough water for everyone.
[18:42.90]四、听对话,根据对话内容完成下列句子,每空词数不限。 对话读三遍。 听对话前,你们有20秒钟的时间阅读下列句子。
[19:20.41]Hi, Jane. Could I ask you a few questions?
[19:23.43]Of course, Jack.
[19:25.35]We all know that you're working for an organization about environmental protection. Can you tell us what you are doing there?
[19:32.60]Well, my main job is to help spread the message about protecting the environment. For example, the three Rs—reduce, reuse and recycle. All of them are important.
[19:48.96]So what can we do at home to protect the environment?
[19:53.80]We should reduce the waste we produce. For example, we should use both sides of paper and reuse plastic bags.
[20:03.67]What can students do at school?
[20:06.40]Recycling can protect the environment and save money. So we encourage students to collect waste paper and soft drink cans. Then we sort them so that they can be recycled.
[20:22.21]What a useful and educational organization! 
[20:34.83]Hi, Jane. Could I ask you a few questions?
[20:37.85]Of course, Jack.
[20:39.83]We all know that you're working for an organization about environmental protection. Can you tell us what you are doing there?
[20:46.64]Well, my main job is to help spread the message about protecting the environment. For example, the three Rs—reduce, reuse and recycle. All of them are important.
[21:03.51]So what can we do at home to protect the environment?
[21:07.59]We should reduce the waste we produce. For example, we should use both sides of paper and reuse plastic bags.
[21:18.13]What can students do at school?
[21:20.86]Recycling can protect the environment and save money. So we encourage students to collect waste paper and soft drink cans. Then we sort them so that they can be recycled.
[21:36.76]What a useful and educational organization! 
[21:48.95]Hi, Jane. Could I ask you a few questions?
[21:51.98]Of course, Jack.
[21:54.60]We all know that you're working for an organization about environmental protection. Can you tell us what you are doing there?
[22:01.27]Well, my main job is to help spread the message about protecting the environment. For example, the three Rs—reduce, reuse and recycle. All of them are important.
[22:17.58]So what can we do at home to protect the environment?
[22:21.77]We should reduce the waste we produce. For example, we should use both sides of paper and reuse plastic bags.
[22:32.29]What can students do at school?
[22:35.00]Recycling can protect the environment and save money. So we encourage students to collect waste paper and soft drink cans. Then we sort them so that they can be recycled.
[22:50.96]What a useful and educational organization!