北师大版 (2019)必修 第三册Lesson 1 Roots and Shoots课时作业

Unit 8 Green Living Topic Talk & Lesson 1 Roots and Shoots——2021-2022学年高一英语北师大版（2019）必修第三册同步课时作业

一、填空

1.Bake the cakes until they are f_____ to the touch.

2.He's very b_____ about what people think of him.

3.Two weeks after we'd planted the seeds, little green s_____ started to appear.

4.Don't leave the lights on; it wastes e_____.

5.We may live to see the e_____ of the whale.

6.It's almost impossible to find him in the wide o_____.

7.He was _____(参与) in a heated argument.

8.The builders are now beginning to lay the _____(地基) of the new school.

9.They were lost in the _____(沙漠) for nine days.

10.I struggled to keep my _____(平衡) on my new skates.

二、七选五

    Imagine an area 34 Limes the size of Manhattan. Now imagine it covered ankle-deep in plastic waste—a total of about 19 billion pounds of garbage. ①______________

    "We're being overwhelmed (淹没) by our waste,"  said Jenna Jambeck, an environmental engineer who led the 2015 study that determined this astonishing number. ②______________, unless something is done to stop the tide of garbage.

   Plastic—a widely-used material—has in many ways been a benefit to humans but it has also caused a growing problem. Today, plastics are the No. 1 type of garbage found in the sea. Ocean Conservancy, a nonprofit environmental advocacy group that organises an annual coastal cleanup event worldwide, said plastic waste makes up around 85 percent of the garbage collected from beaches and oceans.

    Ocean Conservancy says plastics are believed to threaten (威胁) at least 600 different wildlife species (物种). ③______________; a growing body of evidence suggests humans are consuming plastics through the seafood we eat. Research suggests some plastics could be poisonous to humans, and could potentially increase the risk of health problems.

    ④______________. At the Economist World Ocean Summit this week, ten nations announced to reduce plastic sea litter as part of UN Environment's Clean Seas campaign. ⑤______________. Corporations also have a role, as do individuals.

    We can start by thinking twice before using single-use plastic products—and when we do use them, we should take care to properly throw them off or recycle.

A. The following is what we should do

B. And it’s not just wildlife that's threatened

C. And this figure is likely to double by 2025

D. But it's not just countries that need to do their part

E. By 2050, that figure is expected to rise to 1,000 pieces

F. That's how much plastic waste ends up in our oceans every year

G. All of us have an important role to play in dealing with the problems

三、阅读理解

    Amazing species previously unknown to the outside world are being discovered in the Amazon Rainforest at a rate of one every three days, according to World Wildlife Fund(WWF) in a report published in 2010.

    A giant snake, a big catfish that eats monkeys and a blue spider are among the 1, 220 animals and plants to have been found from 1999 to 2009, according to the study.

    The report was published during a United Nations (UN) meeting in Japan. The aim of the meeting was to try to stop the extinction of species around the world. WWF said it showed why protecting the Amazon was so important.

    "This report clearly shows the amazing diversity of life in the Amazon," Francisco Ruiz, From WWF, told reporters. "(But) this incredible region is under pressure because of the human presence."

    Logging and clearing for agriculture uses such as cattle farming have led to 17 percent of the Amazon Rainforest—an area twice the size of Spain—being destroyed over the past 50 years, according to WWF.

    "The report serves as a reminder of how much we still have to learn about this unique region, and what we could lose if we don't change the way we think about development," Ruiz said.

1. What was the aim of the UN meeting in Japan?

A. Setting rules for protecting the Amazon Rainforest.

B. Sharing the findings of the latest research.

C. Trying to prevent species from dying out worldwide.

D. Updating the latest situations concerning animal protection.

2. According to the passage, we can infer that _____.

A. the world's species are not decreasing but increasing

B. people are very optimistic about the future of the Amazon Rainforest

C. the area of the Amazon Rainforest hasn't changed for many years

D. the area of the Amazon Rainforest is decreasing

3. What are we going to lose according to the passage?

A. The land of the Amazon Rainforest.

B. All the animals in the Amazon Rainforest.

C. The amazing diversity of life in the Amazon Rainforest.

D. The ability of farming.

答案以及解析

一、填空

1.答案：firm

2.答案：bothered

3.答案：shoots

4.答案：electricity

5.答案：extinction

6.答案：ocean

7.答案：involved

8.答案：foundations

9.答案：desert

10.答案：balance

二、七选五

答案：FCBGD
解析：①根据前一句Now imagine it covered ankle-deep in plastic waste—a total of about 19 billion pounds of garbage.可知,塑料垃圾总共为190亿磅左右,F选项“这就是每年被丢到海洋里的塑料垃圾的数量”与前文呼应,故选F项。

②根据后文unless something is done to stop the tide of garbage(除非采取一些措施来减少垃圾)可知,C选项“预计到2025年,这个数字很可能会翻倍”与后文形成条件关系,切题,故选C项。

③根据后文a growing body of evidence suggests humans are consuming plastics through the seafood we eat可知,越来越多的证据显示人类通过食用海产品也摄入了塑料,B选项“不仅野生生物受到威胁”切题,故选B项。

④根据本段后文 ten nations以及Corporations可知,这个问题需要全世界共同合作,C选项“所有人都能够为解决此问题发挥作用”切题,故选G项。

⑤根据下一句Corporations also have a role, do individuals.可知,企业和个人也能发挥作用,D选项“不仅仅是国家需要尽到责任”引出下文,切题,故选D项。

三、阅读理解

答案：1-3 CDC

解析：1.细节理解题。根据第三段第二句可知，会议的目的是为了阻止全球范围内的物种灭绝，故选C。

2.推理判断题。根据第五段可知，亚马孙热带雨林的面积正在缩小。故选D。

3.推理判断题。根据文章可知，亚马孙雨林中的生物多样性令人惊叹，但随着亚马孙热带雨林面积的缩小，其生物多样性也将逐渐减少，故选C。