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1.更新世灭绝
英国经济在十八世纪显著扩张，特别是随着工厂制造业的发展到了本世纪中叶，它已经开始改变英格兰北部的景观。在17世纪70年代，一位绅士说:“从制造商的建立起，我们看到哈姆雷特村逐渐发展为村庄，村庄逐渐发展为城镇。”本世纪下半叶，制成品的产量翻了一番。棉花制造业领先:从1750年到1770年，英国棉花出口翻了一番。紧随其后的还有羊毛和羊毛织物、亚麻、丝绸、铜、纸张、餐具和蓬勃发展的建筑业。煤代替木头作燃料。
在世界上2.4%的新鲜水域中，将近90%被冰川、冰帽和雪地所束缚。在冰川之后，下一个最大的淡水水库是地下水。地下水是美国近40%的农业和家庭淡水的来源。近一半的美洲国家和大约95%的农村人口依赖地下水来饮用和其他家庭用水。这些资源的过度使用导致了多种问题，包括水井和天然泉水的干涸以及湿地、河流和湖泊等地表水特征的消失。
这可能看起来令人惊讶，但沙漠动物很少做出特殊的身体适应沙漠环境。相反，它们通过恰当的生物活动时间来生存，半水栖和水栖沙漠动物就是最好的例证。
两栖动物的水生特性使它们看起来不像是沙漠居民。繁殖需要开阔的水域，雌性和雄性分别在那里存放卵子和精子，然后发生受精。受精卵的发育发生在水中，有鳃和无腿的幼鱼必须在水中游泳和进食。只有成年动物能在陆地上生存，但发育不良的肺和透水性的皮肤限制了它们在潮湿的栖息地生存。两栖动物战胜了困难，它们并非拥有极其适应性的结构或有机过程，而是拥有在短暂的有利条件下进行活动和繁殖的生命史。没有比美国南部沙漠中的铁蹄蟾蜍更能说明这种能力的两栖动物了
Conversation
1、学生在宿舍处理物品的情境，提出了将物品捐赠给校外二手店或参与志愿项目的可能性
Lecture
1、心理学中习惯的重要性及其在我们日常生活中的应用
2、欧洲艺术作品中对历史事件的描绘
3、在艺术史的长河中，列奥纳多·达·芬奇以其无与伦比的才华和深远的影响力而著称
Do you agree or disagree with the following statement? The best way to teach children how to behave is to praise their good behavior rather than to criticize their bad behavior. Use details and examples to support your opinion.
Certain animal and plant species are native to one specific area and are found nowhere elsein the world. lf such species once lived over larger geographical areas in the past, they areknown as paleoendemic species , Originally, the paleoendemic species was part of a largeplant or animal population that was spread out over a wide area, but at some point itbecame separated from the larger population. Environmental conditions then caused thelarger part of the species population to die out and become extinct. However, the smaller.separate paleoendemic population was able to survive in its isolated location.
汽车使用后，对城市规划的影响
2. the design and structure of building
鸟类进化成水鸟的两个身体变化
阅读部分
1.对环境有利。因为会对害虫有抵抗力，可以不用杀虫剂。
2.帮助农民获得经济收益，改善他们的经济水平。
3.营养价值高，含有某些营养物质，例如某种特定的维生素。
听力反驳
1.会产生物种间的基因交流，对生态环境造成的影响不可控
2.转基因作物的种子需要付费，贫穷的农民还是买不起，费用也不一定能赚回
3.转基因作物中的营养物质只是一部分营养素，还不如吃各种蔬菜水果营养均衡。
Your professor is teaching a class on sociology. Write a post responding to the professor's question.In your response, you should do the following.- Express and support your opinion.- Make a contribution to the discussion in your own words.An effective response will contain at least 100 words.Doctor Achebe:As countries work to reduce emissions and protect the environment, many governments are encouraging the adoption of electric vehicles through new policies. This week we will discuss ideas for policies that could promote electric vehicle usage. In your post, I would like you to address this question: What policies should the government implement to promote electric vehicles for environmental protection?Claire:More charging stations are key to getting people to buy electric cars. It's frustrating when you can't charge your car. The government should offer big tax credits to businesses to build charging stations. If charging spots are everywhere, range anxiety will go away and electric car sales will take off. We need that to help the Earth.Paul:The government needs to create entire highways just for electric cars. These special roads could have charging stations along the way so range anxiety disappears. Exclusive electric highways would show electric cars are the transportation of the future. We'd see tons more Teslas on the road helping clear the air.
现在因为汽车使用了太多的石油，导致汽车的废气对于全球的大气产生了很快的影响，因此很多政府都在想尽办法鼓励人们使用电车。你建议政府可以采用哪些方法来鼓励人们使用电车呢？
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