2020-2021学年高中英语 同步课时作业（4）Unit 2 Let’s talk teens Welcome to the unit .doc

1、Unit 2Welcome to the unit & Reading一、填空1.The company _(target) by animal rights groups for its use of dogs in drug trials since 2018.2.Students are always struggling _(balance) between study and after-school activities.3.Youd better calm _ and raise your voice when you give a speech.4.Parents are _

2、(concern) about their childrens safety, diet and study.5.When she agreed to marry him he felt he had achieved his hearts _ (愿望).6.The snake sheds its s once a year.7.An e is someone who prepares a book or article for printing by deciding what to include and checking for any mistakes.8.Some children

3、find it difficult to talk to _ (成年人).9.Do you have a _ (思想的) picture of what it will look like?10.Since his parents died early, he had to earn his own living when he was a _ (青少年).11.Their whole life was a constant _ (斗争) against poverty.12.We had an _ (争吵) with the waiter about the bill.13.China ha

4、s _(强调) the need for cooperation among countries along the Belt and Road.14.Jack says to his parents that he is old enough to make decisions _ his own.15.She kept _(wave) to her husband and daughter until they were out of sight.二、阅读理解 One of Australias most famous natural gifts, the Great Barrier Re

5、ef is blessed with the breathtaking beauty of the worlds largest coral reef. The reef contains a large variety of life and over 3,000 reef systems and hundreds of islands with some of the worlds most beautiful beaches. Because of its natural beauty, the Great Barrier Reef has become one of the world

6、s most sought-after tourist attractions. However, for the past few years, the news about corals has been discouraging. Currently, the reef is threatened by climate change, tourism, water pollution, and overfishing. Agricultural fertilizer (肥料) run-off from Australian farms also has caused the widesp

7、read growth of sea-plants ,which absorb most of the nutrients (养分) and leave little remaining for the living coral reef and the animals that live in it. What has changed is the increasing importance of climate change as a greater threat than the others, says David Wachenfeld, a scientist of the Grea

8、t Barrier Reef Marine Park Authority. Coral reefs are extremely sensitive (敏感的) to warming ocean temperatures. In a report on April 28, the Australian government said it set aside $ 500 million to help protect corals. The money will be spent on reducing water pollution from agriculture, reef monitor

9、ing and research on climate influence. Though the Australian investment is welcome, it will at best only delay coral deaths. Its too little, too late, as a leading coral-scientist Terry Hughes of James Cook University put it. The only way to save corals over the long term is to slow down climate cha

10、nge. That process will require all countries to work together to find the most effective way of cutting emissions (排放) of greenhouse gases. The most recent emissions figures, however, show that the world is failing at that task. The year 2019 has seen an increase in global emissions. This week in Bo

11、nn, Germany, countries are meeting to discuss how to keep their word in the Paris climate agreement. Lets hope they hear about the silent death of the worlds corals.1.Why does the author write the text?A.To introduce the Great Barrier Reef.B.To show the result of climate change.C.To offer ways of pr

12、otecting the Great Barrier Reef.D.To tell us the serious situation of the Great Barrier Reef.2.According to Terry Hughes, the Australian investment in protecting the coral reefs was _ .A. timelyB. unsatisfyingC. effectiveD. useless3.How can we protect the Great Barrier Reef effectively in the long r

13、un?A.By reducing the emissions of greenhouse gases.B.By cutting down the number of tourists.C.By setting more strict rules on overfishing.D.By investing more in climate research.三、七选五How to Enjoy Life As a Teen The best years of your life? Maybe not, but you can learn to make the most of your high s

14、chool days. _. Whether its having a computer, having friends, having a good supply of food, a bed to sleep on, a family that loves you or simply being born in this world, remember that the point of life is for you to enjoy it. Be happy, and life will reward you. Remember that these are the last few

15、years you will be able to enjoy yourself without having to worry about the responsibility (责任) of an adult. Choose your friends wisely. Unlike what many articles state, you dont have to be popular and have lots of friends to be happy. _. Try to have friends that like you because of who you are, not

16、just because you are wearing a certain brand of shoes or something like that. These are people who shop at the same store as you, not someone who will sympathize (同情) with you when your dog dies. Play a sport or work out. Having a healthy body leads to a healthy and happy mind. _. Be sociable. _. Wh

17、ile you only need 4 or 5 close friends, that doesnt mean you shouldnt try to meet new people. Participating gives you something to do instead of sitting bored at home. _! If you have a special girl or guy you want to ask out or dance with, just ask! You probably wont be rejected(拒绝) but if you are,

18、remember that there will always be someone else that likes you for who you are. Dont go to sleep that night with regret.A.Go for itB.Keep your grades upC.Learn to appreciate small thingsD.If you are not good at sports, join a band or choirE.Being confident about your appearance makes you more confid

19、ent in other areasF.In fact, many of the friends you have when you are popular are not true friendsG.Joining in activities and sports increases your chances of meeting new friends答案以及解析一1.答案：has been targeted解析：句意为：自2018年以来，这家公司因用狗做药物实验而成为动物保护团体（批评）的对象。target在句中作谓语，且这家公司是被批评的对象，应用被动语态。时间状语为since 201

20、8，因此答案为has been targeted。2.答案：to balance解析：句意为：学生总是努力兼顾学习和课外活动。struggle to do sth意为努力做某事。3.答案：down解析：句意为：演讲时你最好镇定下来并提高声音。calm down意为平静，镇静。4.答案：concerned解析：句意为：家长们很担心孩子们的安全、饮食和学习。be concerned about意为担心/担忧。5.答案：desire6.答案：skin7.答案：editor8.答案：adults9.答案：mental10.答案：teenager11.答案：battle12.答案：argument13.

21、答案：stressed14.答案：on解析：考查固定搭配。句意:Jack 和他父母说他已经足够大,可以自己作决定了。on ones own是固定搭配,意为独立地。15.答案：waving解析：考查非谓语动词。句意:她不停地向丈夫和女儿挥手,直到看不见他们为止。keep doing sth.重复不断地做某事。二答案：1-3 DBA解析：1.推理判断题.根据第二段中的 Currently, the reef is threatened by climate change, tourism, water pollution, and overfishing. 可知,目前,大堡礁正受到气候变化、旅游业

22、、水污染和过度捕捞的威胁;结合下文描述大堡礁面临各方面的影响可推知,作者写这篇文章是为了告诉我们大堡礁面临的严峻情况.故选D.2.推理判断题.根据第四段中的 Its too little, too late, as a leading coral-scientist Terry Hughes of James Cook University put it . 可知,正如詹姆斯库克大学首席珊瑚科学家 Terry Hughes 认为,投资太少了,也太晚了. 由此可以判断,根据 Terry Hughes 的说法,澳大利亚在保护珊瑚礁上的投资并不令人满意.故选B.3.细节理解题.根据第四段中的 The

23、 only way to save corals over the long term is to slow down climate change. That process will require all countries to work together to find the most effective way of cutting emissions of greenhouse gases. 可知,从长远来看,拯救珊瑚的唯一方法是减缓气候变化.这一进程将要求所有国家共同努力,找到削减温室气体排放的最有效方法.由此可知,从长远来看,可以通过减少温室气体的排放来有效地保护大堡礁.故

24、选A.三答案：CFEGA解析：根据文章结构可知,此处是本段的主旨句,再由下文内容可知,此处应表示学着欣赏小事情,且C项中的appreciate与本段中的enjoy相照应,故C项正确。 根据本段的主旨句Choose your friends wisely可知,本段主要讲了如何选择朋友,故选F与上下文衔接。根据本段主旨句及空前内容可知,拥有健康的身体就会有健康、快乐的心智,从而会让人变得自信。所以E项正确。根据本段主旨句Be sociable以及下文中的meet new people和Participating可知,空处表示参加活动和体育运动会增加你结识新朋友的机会,故C项正确。空处为本段主旨句。根据下文中的just ask和最后一句Dont go to sleep that night with regret可知,空处应表示大胆试一试,故A项正确。