发布时间 : 星期二 文章2019-2020瀛﹀勾楂樹腑鑻辫 Unit 4 Global warming Period One - 鐧惧害鏂囧簱更新完毕开始阅读
A．Green Living C．Modern Living 答案 A
B．Online Living D．School Living
解析 标题归纳题。本文主要论述了学校应教育孩子们从很小就了解绿色生活、气候变暖方面的知识，从而在将来可以更好地解决气候变暖的问题。故A项“绿色生活”作标题最合适。
C
People need to seek out new foods because the world has so many mouths to feed.As of 2017，there were more than seven billion people on the Earth，according to the United Nations.And by 2100 that number may double.Feeding all of these people means not only improving the way foods are grown，but also finding new sources of nutrition(营养)．
And that quest is becoming ever more urgent.If nothing changes，within 35 years，the world’s appetite(胃口) will be greater than the amount of foods produced.That’s according to a report published last year.It was prepared by the Global Harvest Initiative，a private agriculture group based in Washington，D.C.
Global warming，too，is changing food production.Scientists predict that rising temperatures will reduce the growth of important crops like wheat，corn and soybeans.Low-income developing countries will be hit hardest.When harvests fall，crops become more expensive.And since those foods are also used to feed animals like cows and pigs，meat prices will rise too.
All over the world，researchers are racing against the clock to figure out how best to feed more people in a fast-changing world.And some surprising ideas have begun to come up.Two years ago，scientists introduced the first burger made from meat grown in a lab.The project cost more than 300,000，but it’s a start.Other researchers are developing seeds that can survive high temperatures and drought.Still others are finding ways to improve the genes of meat animals so they can produce more meat and can stand the heat.A gloomy(悲观的) forecast for the planet isn’t the only reason to study foods for the future.It’s a creative quest that will inspire people who can think in new ways about existing plants and animals.These researchers have used their talents in ways that even they never would have predicted.
语篇解读 本文主要讲述了在全球变暖的环境下，人们应如何应对日益膨胀的人口的温饱问题。 9．What does the underlined part “that quest” in Paragraph 2 refer to?
A．The research on foods. B．The increase of population. C．The variety of nutrition. D．The change of appetite. 答案 A
解析 词义猜测题。根据第一段最后一句及下文中对食物的研究可知，画线词指对食物的研究。
10．How does global warming affect low-income developing countries? A．By increasing the production of crops. B．By improving sources of nutrition. C．By reducing the growth of crops. D．By leading to the high cost of life. 答案 D
解析 推理判断题。根据第三段的内容可知，气温上升将引起农作物的减产，从而导致农作物价格上涨，进而肉类价格上涨，最终会导致人们生活成本增加。故选D。 11．What is mainly talked about in Paragraph 4? A．New ways of farming. B．Some great researchers. C．Progress in food research. D．Achievements in lab experiments. 答案 C
解析 段落大意题。根据第四段的内容，尤其是第二句“And some surprising ideas have begun to come up.”可推知，本段主要讲述了食物研究方面的进步。 12．What will be discussed in the following paragraph? A．Examples of successful food researchers. B．Different opinions about the future foods. C．Methods of dealing with global warming.
D．Possibilities of feeding the present population. 答案 A
解析 推理判断题。根据最后一段最后一句“These researchers have used their talents in ways that even they never would have predicted.”可推知，下文会举一些成功的食物研究者的例子。 Ⅱ.七选五
April 22nd every year marks the start of Earth Day，a day that is celebrated every
year to raise awareness(意识) about our home planet and how we can save it from being damaged. 13
·Green up your home
This is one of the most common things that people do whenever Earth Day rolls around；that is，switch off their lights. 14 Conserve(节约) energy by switching off all power of electricity points whenever they are not on use.In addition，take out all the plugs(插头) from plug points even after switching them off.
· 15
Cars，being the greatest source of air pollution，can be left at home this weekend. 16 Other greener choices are carpooling，riding a bike or you can also walk if you want a healthier choice and if your workplace is not that far away from your home.
·Be a little dirty
No，we don’t mean it “that way”．We simply mean to say，don’t take a bath.Yes，saving water is super important.A day or two without a bath won’t harm you，but it will certainly do a lot of good for our planet.A daily shower isn’t a matter of health；it’s a matter of comfort. 17
The future of our planet is in your hands! A．Leave your cars at home.
B．Traveling by public transport is a better choice.
C．Below，we have made a list of things you can do to celebrate Earth Day. D．Showering every day can wash away the natural oils that our skin and hair need. E．However，this is not something you should do just for a day or for only an hour. F．Started in the year 1970，Earth Day is now celebrated in more than 190 countries each year.
G．Do something every day that will improve your surroundings to make the planet a better place to live.
语篇解读 众所周知，每年的4月22日是地球日。这是一个能让我们关注地球家园、珍惜并保护它免遭人类行为反复破坏的日子。本文列举了几项便于人们实践的地球日活动。 13．答案 C
解析 根据上文“每年的4月22日是地球日。这是一个能让我们关注地球家园并保护它免遭破坏的日子”，再根据下文提到的关注地球家园所采取的措施，可知此空是一个承上启下的句子，根据句意可知选C项“下面我们列举了为庆祝地球日你能做的几项活动”。 14．答案 E
解析 根据上文“每到地球日，很多人都会不约而同选择做这件事：关灯”，再根据空格下句“为了节省能源，我们应该随时关闭所有不在使用当中的用电设施”，可知此空的意思应该是：然而，这不应该只是你在这一天或这一小时做的事。故选E项。 15．答案 A
解析 此空是一个小标题。根据小标题的特点和下文内容，可知A项符合题意。 16．答案 B
解析 根据下文“其他绿色出行方式还包括拼车、骑行；如果你的工作地点离家不远的话，并且你想有个更健康的选择，你可以步行”，可知此处应该再提到一种绿色出行方式，根据句意可知选B项“公共交通其实是一种更好的选择”。 17．答案 D
解析 根据上句“每天冲澡与健康无关，其实只是为了舒服而已”，可知此处意思应该是：每天洗澡还会冲掉我们皮肤上天然的油脂，而这些油脂其实是皮肤和头发需要的。故选D项。