2020-2021学年英语人教版必修2课时作业：UNIT 3　COMPUTERS 12 WORD版含解析.doc

1、课时作业12.单词拼写1In _ (现实), we often meet with trouble.2He began to _ (探索) the island two years ago.3We need to _ (简化) this complex problem to make it easy to understand.4Tom _ (发信号) to me to keep quiet.5The _ (出现) of wild goats shows that the environment is getting better.6If a problem _ (发生), you will

2、have to keep calm.7She has good _ (性格) and she is easy to get along with.8He is busy _ (解答) the puzzles the student came up with.9Have you _ (计算) the sum of the money we need for the trip yet?10The _ (应用) of the new technology increased the production.答案1reality2.explore3.simplify4.signalled5appeara

3、nce6.arises7.characters8.solving9calculated10.application.用所给词的适当形式填空1The machine _ (connect) to a computer already.2This country _ (stop) from borrowing money internationally for the past 15 years.3Though we dont know what was discussed, yet we all feel the topic _ (change)4We all enjoy these Engli

4、sh songs and they _ (teach) quite a few times on the radio.5Your English is very good.Im still nervous. After all, it is only the second time that I _ (meet) foreign guests.6If the paper _ (finish), please hand it in.7I dont believe youve already finished reading the bookI _ (lend) it to you this mo

5、rning!8Youve failed to do what you _ (expect) to and Im afraid the teacher will blame you.9Every year a flood of farmers arrive in Shenzhen for the moneymaking jobs they _ (promise) before leaving their hometowns.10With the help of high technology, more and more new substances _ (discover) in the pa

6、st years.答案1has been connected2.has been stopped3has been changed4.have been taught5.have met6has been finished7.lent8.were expected9have been promised10.have been discovered.句型训练1Too many houses _ in the past three years, so the prices are sure to fall. (build)在过去的三年中，人们建了太多房子，因此，房价下跌已成必然。2I like t

7、his science fiction film and it _ three times on TV. (broadcast)我喜欢这部科幻电影，它已经在电视上播了三次了。3In the last few years thousands of films _ all over the world. (produce)在过去的几年里，全球有成千上万部电影被制作。4Since 1980, good use _ of wind to produce electricity. (make)自从1980年，人们已经能很好地利用风能来发电。5The two countries have agreed t

8、o hold another meeting to discuss the dispute, but when and where it will be held _ yet. (decide)两国已经同意会再次举行会议来商讨这个争端，但何时何地举行还未定下来。答案1have been built2.has been broadcast3have been produced4.has been made5hasnt been decided.七选五If you want to be happy, you must take responsibility and stop expecting t

9、hings or people to make you happy. You are the source of your own happiness, so stop looking elsewhere. _1_ Here are a few ways for you to follow：Be thankful to others. _2_ It is too easy to take those around us for granted. Show them the same consideration you would like shown to you. _3_ This goes

10、 beyond(超过) politeness; it is a form of giving. Treat everyone you meet as if they have a big sign on their chest saying “Make me feel important.” If you do this you will discover a hidden source of joy. Perform acts of kindness. Dont wait to be asked. _4_ It doesnt need to be a big thing, hold the

11、door for a stranger, or smile at anyone you make eye contact with. Look for chances to make others feel good.Make a decision to be happy. This is the most important step on the road to a happy life. _5_ You are the key to your own happiness, so go ahead, unlock it once and for all.ARespect other peo

12、ple.BBe polite to other people.CInstead of looking for happiness, start creating it.DYou can change your feelings by acting the way you want to feel.EIf you see a chance to do something nice for someone else, do it!FSimply make up your mind to be the happiest person you know, and you will be.GBe gra

13、teful to the people in your life, and practise saying thank you for any politeness they show you.答案本文讲述了你是自己快乐的源泉，只要下定决心你就能成为最幸福的人。1C根据前句“You are the source of your own happiness, so stop looking elsewhere.”可知，你是自己快乐的源泉，不要再去别处寻找，要开始创造幸福，而不是去寻找幸福。looking for 是信息词，故选C。2G根据第二段第一句“Be thankful to others.

14、”可推知下句的意思是：感谢你生活中的人。信息词grateful 和 thankful 呼应。故选G。3A根据下文“Treat everyone you meet as if they have a big sign on their chest saying Make me feel important.”可知要尊重他人。故选A。4E根据段落主题句“Perform acts of kindness.”可知，如果你有机会为别人做好事，那么就去做！故选E。5F根据主题句“Make a decision to be happy.”可知，下决心做一个快乐的人，这是通往幸福生活道路上最重要的一步。关键词

15、make up ones mind 和make a decision 呼应，故选F。.读后续写阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。My sister stacy and I had set out on a warm spring day to hike the Triple Falls Trail. On the way up, we climbed over a tree that fell across the crumbly path, and we marked this place as a waypoint for our return trip. Onc

16、e we passed the tree, we knew it would take an hour or so to get back down to the trailhead. We hiked past steep cliffs dense stands of trees and lunched at Triple Falls. On the way back, we walked for what seemed like a very long time, expecting to see the fallen tree any minute.We rounded a bend,

17、finally, there it wasby now I was hot and ready to go home. At the same time, we crossed paths with a man and a child. I stepped aside to make room for them, my eyes still glued to the tree.Suddenly I was sliding down. Fast, I slid on my left side for 10 feet or so, looking over my right shoulder. A

18、s I flailed (挥动) for anything to help slow my fall, my water bottle flew out the pocket of my backpack. I rolled onto my stomach and started clawing at the cliff. After another 10 feet or so, somehow I managed to grab onto a very thin tree branch and stopped myself. It looked like it would snap (折断)

19、 as soon as I bent it. My heart was beating madly but I didnt dare to move for fear that I would start sliding again. I glanced up at my sister and her face was all pale. She was looking down at the sheer dropoff below me, crying loudly.I swallowed hard as I saw nothing but small bushes on the cliff

20、 that descended straight down at my waist. I couldnt hold_myself_up any longer.“Someone comes to help me！”I yelled at the top of my lungs. I knew the ground was far away. My breaths grew shallow and short. After about 10 minutes, a crowd gathered on the trail above and I saw a man climbing down towa

21、rd me.注意：1所续写短文的词数应为150左右；2至少使用5个短文中标有下划线的关键词语；3续写部分分为两段，每段的开头语已为你写好；4续写完成后，请用下划线标出你所使用的关键词语。Paragraph 1：Then a rope made of raincoats and clothes fell down._Paragraph 2：The man found a rock sticking out of the cliff to my side._范文Then a rope made of raincoats and clothes fell down. Loose rocks and

22、dirt on the cliff were brought down toward my face. Oh, the man was risking his life to try to save me. The combination of weakness and relief compelled me to yell up at my sister, and I heard her crying. I cant let my sister down. I used that as motivation to gain strength and took some deep breath

23、s. I held on and waited. Slowly, the man lowered himself with the aid of the rope.The man found a rock sticking out of the cliff to my side. Holding onto a tree with one hand, he leaned and looped the rope around me, tying a onehanded knot. He pointed out a spot on the ledge next to him and told me

24、to step on. My legs started shaking so hard that I could hardly hold_myself_up. Luckily, the man pushed me up from below as I pulled myself up the rope, struggling through the bushes. Someone joined in the rescue and took my backpack. Stacy and another man grabbed my arms and lifted me to the safety. I am extremely grateful for the assistance they have provided.