Unit 3 Learning about Language 同步课时作业-（2022新）人教版高中英语高二选择性必修第三册.docx

1、Unit 3 Environmental ProtectionLearning about Language2021-2022学年高二英语人教版（2019）选择性必修第三册同步课时作业1.In the movie, he plays a concerned and s_(善解人意的) father trying to bring up two teenage children on his own.2.Whatever troubles arise, well have peace of mind amidst seeming c_(混乱).3.There are three books I

2、reread a_(每年). The first, which I take to reading every spring, is Ernest Hemingways A Moveable Feast.4.If you want to apply for the job, you must s_(提交) your application before January 1st.5.Brown is friendly and h_(幽默的), and what he says can always please us as well.6.Most kids u_(经历) a complete t

3、ransformation when they become teenagers.7.The government took another step on the road to political r_(改革).8.As we can see, the whole river b_(流域) is covered with tropical forest.9.He failed to _(抓住) the opportunity during the job interview.10.During the war we had just enough food to _(维持) us.11.W

4、ithout the _(改革) of the economic management system our industry will rot.12.We advocate peaceful development, _(和谐的) development and scientific development.13.If you do this, youll almost always meet your _(年度的) goal.14.After the failure of the electricity supply the city was in _(混乱).15.The submari

5、ne that our country has put into use is driven by _(核能的) power.16. Polar bears are undergoing hunger in a world _ (warm) than ever before. Polar bears live in the environment too cold for most animals. For most of the year, they live and hunt on Arctic sea ice. Nature has prepared_ (they) for the co

6、ld conditions. But nothing has prepared the bears for the danger_ threatens their only home. Polar bears world is melting. Studies show that polar ice_ (reduce) by 9.8% every 10 years since 1978. Now about 20,000 to 25,000 polar bears live in the Arctic. Polar bears depend_ sea ice for their_ (survi

7、ve). Sea ice is more than just the platform that the bears walk over, says Andrew Derocher,_ scientist who studies North American polar bear populations. Without it, they cant exist._(melt) and refreezing of polar ice is natural. But in a warmer world, the cycle speeds up, and polar bears have less

8、time_(hunt). Normally, they have three months in the spring when they gain more weight. The extra fat will be used, when the bears are not _(active) hunting.17. Each area of the environment is full of _ (differ) kinds of plants, animals and other organisms (有机体)._(stay) alive, these living things de

9、pend on each other and on non-living things in their environment including water, sunlight and temperature. A community of living and non-living things_ function together creates an ecosystem (生态系统). Plants get their energy from the earth, water and sun. Animals get their energy from eating plants a

10、nd other animals. Each organism within an ecosystem_(have) its own role to play. Think of the ecosystem of a mangrove forest (红树林). When leaves and branches fall from_(tree) to the land, they are eaten by bacteria in the muddy areas. Only bacteria can survive in this low-oxygen environment. As the l

11、eaves and branches are broken down, they release nutrients for animals_(live) in the sea. The large mangrove roots and stick-like plants protect the coastline and provide nesting places_ birds. They also give shelter and food to a large number of young fish. Anything that_(involve) in an ecosystem c

12、an affect the balance of it. _, other threats such as invasive species, natural disasters, temperature changes and_(pollute) can also harm or destroy the system.答案以及解析1.答案：sensitive解析：句意:在电影中,他扮演一个关爱且善解人意的父亲,试图独自抚养两个十几岁的孩子。2.答案：chaos解析：句意:无论出现什么麻烦,我们都会在看似混乱的情况下保持平和的心态。3.答案：annually解析：句意:有三本书我每年都重读一遍

13、。第一本是欧内斯特海明威的流动的盛宴,每年春天我都会阅读。4.答案：submit解析：句意:如果你想申请这份工作,你必须在1月1日之前提交你的申请。5.答案：humorous解析：句意:布朗很友好而且幽默,他说的话也总是能让我们高兴。6.答案：undergo解析：句意:大多数孩子成为青少年时都会经历完全的转变。7.答案：reform解析：句意:政府在实现政治改革的路上又迈进了一步。8.答案：basin解析：句意:正如我们所能看到的,热带雨林覆盖了整个河流流域。9.答案：seize10.答案：sustain11.答案：reform12.答案：harmonious13.答案：annual14.答案

14、：chaos15.答案：nuclear16.答案：warmer them that/which has reduced on/upon survival a Melting to huntactively解析：考查比较级。句意：在一个比以往任何时候都更温暖的世界里，北极熊正在遭受饥饿。修饰名词world，用形容词，由后面的than可知，应用比较级warmer。考查代词。句意：大自然使它们为寒冷的条件做好了准备。设空处作prepared的宾语，指前面提到的Polar bears，故用them。考查定语从句。句意：但是，北极熊对威胁它们唯一的家园的危险毫无准备。所填词引导定语从句，关系词在从句中作

15、主语，先行词是the danger，指物，故用that或which。考查动词的时态及主谓一致。句意：研究表明，自1978年以来，极地冰每10年减少9.8%。由since 1978可知，句子应用现在完成时；此处主语是polar ice，中心词ice为不可数名词，故填has reduced。考查介词。句意：北极熊依靠海冰生存。depend on/upon意为依靠，依赖，是固定搭配。考查词性转换。前面有形容词性物主代词修饰，故用名词survival，表示生存，存活。考查冠词。句意：一位研究北美洲的北极熊数量的科学家Andrew Derocher说 。此处泛指一个科学家，且scientist以辅音音素

16、开头，应用不定冠词a。考查动名词。句意：极地冰的融化和再冻结是自然的。此处为动名词短语作主语，and连接两个并列成分，由refreezing可知，用动名词Melting。考查非谓语动词。句意：但在一个更温暖的世界里，这种循环会加速，北极熊捕猎的时间就会更少。此处表示北极熊捕猎的时间更少，用不定式作定语。考查副词。句意：当北极熊不积极捕猎的时候，多余的脂肪将被利用。修饰动词hunting，作状语，意为积极地，用副词。17.答案：different To stay that/which has trees living for is involved Besides pollution解析：考查词

17、形转换。分析句子结构可知，空处在句中作定语修饰kinds，表示不同的，故应填形容词形式。考查非谓语动词。根据语境可知，空处表示目的，故应用动词不定式作目的状语。 考查定语从句。空处引导定语从句，修饰先行词things，并在从句中作主语，故填关系代词that/which。考查主谓一致和时态。该句是对客观情况的描述，故应用一般现在时；主语为Each organism，表示单数意义，故应填has。考查名词复数。句中tree为可数名词，前面没有限定词，故应用复数形式。考查非谓语动词。分析句子结构可知，空处在句中作定语，修饰animals，因live与animals之间为逻辑上的主谓关系，故应用动词-i

18、ng形式。考查介词。provide sth. for sb.为固定用法，意为为某人提供某物。考查时态、语态和主谓一致。该句为含有定语从句的复合句，关系词that在定语从句中作主语，先行词为Anything，因此谓语动词用单数形式；此处陈述的是客观情况，要用一般现在时；that指代先行词Anything，与动词involve之间为被动关系，故应用被动语态。考查副词。根据空前的can affect the balance of it以及本句中的can also harm or destroy the system可知，这里表示递进，故填Besides。考查词形转换。根据and前面的部分可知，此处应用pollute的名词形式pollution。