3，学习学习
It is widely acknowledged that .......contributed to .......
Experts argue that ..........
But I doubt whether ........alone will solve the problem.
4，造句
It is widely acknowledged that too much automobile gas emission contrbuted to the city environmental pollution. Experts argue that China must introduce a \"odd-even\" traffict restriction.But i doult whether restriction alone will sove the problem, as that\'s just a solution for time being.
5，复习
There is a general debate nowadays about the problem of itinerant workers.Those who object to the rising migrant population argue that increasing numbers lead to rising crime rates and harm social stability.They believe that strict limist should be placed on migrants entering China\'s cities.But peopls who favor the influx of the cheap labor force,on the other hand,maintain that migrants are needed to support the massive urban infrastructure construcion program.
人们普遍都知道大量砍伐易造成夏季严重的洪水。专家们宣称中国必须采用大规模植树造林规划。但是我怀疑是否植树造林唯一就能解决这个问题。
句型应用：
It is acknowledged that agreat quantity of car’tail gases discharging contributed to atmosphere pollution. Experts argue that China must introduce a assive retraint . But I doubt whether limit measures alone will solve the problem.
There is a general debdte nowadays about the problem of itinerant workers .These who robect to the rising migrant population argue that increasing numbers lead to rising crime rates and harm social stability. They belive that strict limits should be place on migrant s entering China ’cities .But people who favour the influx of the cheap labor force ,on the orther hand maintain that migrants are need ed to support massive urban instrastructure construction program.
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1、人们都认为过度砍伐森林引起了夏季的大洪灾。专家们认为中国必须进行植树造林计划。但是我怀疑，只进行植树造林是否就能解决这个问题。
2、It is widely acknowledged that the emission of vechiles continued to harm the environment. Experts argue that limitation must be placed on the number of the vehciles. But I doult whether limitation alone will sovle the problem.
3. It is a general debate nowadays about the itinerant workers. Those who object to the rising workers argue that this lead to the increasing crime rate and harm the social stadity. They believed that strict limites should be placed on the rising workers entering China\'s cities. But Those who favor the inluct the cheap working force, on the other hand, maintain that the people are needed in order to support massive infrustructure construction program of cities.
1.翻译：人们普遍地认为，滥砍滥伐造成夏季过量的洪涝灾害。专家认为，中国必须引进大量的造林计划。但我对是否单凭植树造林就能解决问题持怀疑态度。
2.学习句型
3.试着造句：It is widely acknowledged that automobile\'s exhaust contributed to environmental contamination .Experts argue that our nation should take legal action .But I doubt whether legislations alone will solve the problem.
It is widely acknowledge that the emission by cars contribute to air pollution.Excepts argue that place a heavy tax on the purchase of cars.But I doubt that only this measure alone will slove the problem.
It is widely acknowledged that car\'s emission contributed to heavy eviroment pollution,Experts argue that china must control the number of moters.but I doubt whether the controlation alone will solve the problem
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