1、课时作业(九)Unit 3Section Developing ideas， Presenting ideas & Reflection.单句语法填空1Our motherland is getting more and more _ (power). This is why we can get protection whenever we run into danger abroad.2There are several opinions about why dinosaurs suddenly died _， one of which says their _ (disappear) m
2、ight be caused by the climate change.3It is said that the famous artist usually draws _ (inspire) from ordinary scenes.4Im not sure whether I can persuade him _ giving up the adventure. Anyhow, I will try my best.5The increase in production will, _ turn, lead to higher profits.阅读理解AIf you use social
3、 media to chase away loneliness, a new study suggests that youre going_against_the_grain.We may have heard a lot about the benefits of interacting with others online, but the findings of a study conducted by scientists from the University of Pittsburgh School of Medicine show a direct relationship b
4、etween social media usage and feelings of isolation (孤独). In short, the more time you spend on social media, the lonelier you may feel. With increasing usage of a large number of apps that allow endless virtual connectivity, loneliness seems like the last problem frequent social media users would fa
5、ce, but according to Brain A. Primack, the leader of the study, it has the exact opposite effect. “Mental health problems and social isolation are widespread among young adults nowadays，” Primack said. “We are naturally social creatures, but modern life tends to separate us instead of bringing us to
6、gether. While it may seem that social media presents opportunities to fill the social void (空白), I think this study suggests that it may not be the solution people were hoping for.” Primack and his team examined the social media habits of 1,787 US. adults aged between 19 and 32 via a questionnaire t
7、hat asked about the frequency and the time they spent on the most popular social media platforms. Eventually, they determined that young adults who are constantly logging in social media are lonelier than those with less social media usage. Frequent exposure to unrealistic descriptions on social med
8、ia instead of facetoface social interactions may give people the impression that others are living happier and have more sociable lives, and this may make users feel more isolated in comparison.1What does the underlined phrase “going against the grain” in Paragraph 1 mean?ADoing it all wrong.BOn the
9、 way to success.CTaking a risk.DMaking a difference.2How did Primack and his team conduct the study?ABy providing explanations.BBy collecting data online.CBy doing a survey.DBy describing their own experiences.3What can we learn from the study?AYou will feel happier if you spend more time online.BOn
10、line interaction is not the solution to social isolation.CVirtual connectivity is the best way to fill the social void.DPopular social media platforms can bring people together.BYou can often choose a private setting when you browse (浏览) the Internet. But be forewarned: It may not afford as much pri
11、vacy as you expect. Thats the finding of a new study.Major web browsers offer a privatebrowsing option. Its sometimes referred to as “incognito (隐姓埋名的)”. This option lets you surf the Internet and saves a record into its history of each page that you visit. And what sites you visit wont affect the s
12、uggestions your browser makes the next time youre filling out an online form.Many people believeincorrectlythat the incognito setting protects them more broadly. Most believe it even after reading a web browsers explanation of the incognito mode. For instance, a new study had 460 people read web bro
13、wsers descriptions of private browsing. Each person read one of 13 descriptions. Then the participants answered questions about how private they thought their browsing would be while using this tool. The volunteers didnt understand the incognito mode. This was true no matter which browser explanatio
14、n they had read. The researchers reported their findings on April 26 at the World Wide Web Conference 2018 in Lyon, France. More than half of the volunteers thought that if they logged in an account of a search engine through a private window, it wouldnt keep a record of their search history. Thats
15、not true. And about one in every four participants thought private browsing hid their devices IP address. Thats also wrong. Blase Ur was one of the studys authors. Hes an expert in computer security and privacy at the University of Chicago in Illinois. “Companies could clear up this confusion by giv
16、ing better explanations of the incognito mode，” his team said. For example, the browsers should avoid vague (模糊的) expressions. A web browser, for instance, promises users that “your secrets are safe”. Nope. Another encourages users to “browse like no ones watching”. In fact, someone might be. (If yo
17、ud like to know more about the research information, please click here.)4What is the researchers aim by doing the study?ATo check the safety of browsers of leading companies.BTo find users knowledge about private browsing mode.CTo track young web users browsing habits.DTo test a new tool to maintain
18、 the Internet.5The “incognito” mode is believed to be able to _.Arecord ones passwordsBgive a warning of insecure linksChelp hide ones browsing historyDaccess ones favorite website quickly6What is the authors purpose by writing the last paragraph?AReporting a new finding.BPutting forward a suggestio
19、n.CIntroducing a web browser.DCorrecting a misunderstanding.读后续写阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。When I was in hospital and had just given birth to my son, a lady would always come in and sweep. I usually said “hello” to her but she would never answer me.I did this repeatedly but still received
20、no answer. I thought she might have been deaf. But later I was told that she couldnt speak and it was likely that she had been in a concentration camp. She had ever recovered, but some children threw crackers (鞭炮) at her window, letting off very loud “bangs”， and she never spoke from that day on.On
21、the day I was going home and I asked her if she would like to be my friend. Still, she made no answer! I left her some magazines and told the staff to give them to the lady. And then I left the hospital.On my way home, I received a call from my doctor. She said the lady had got the magazines and wan
22、ted to see me. So I went happily back to the hospital with my baby and my husband. On seeing me, she gave me a big hug and held my hands tightly. She had tears in her eyes. The hospital was quiet. Not a word passed her lips.Two years later, I heard conversation on the radio. They were talking about
23、the lady, the staff and the events in the hospital. Unknown to me, at the time that day, she spoke for the first time all those years. Her doctor said from that day on, she started to trust others. That broke her silence and she started to talk again.注意：1.续写词数应为150左右；2请按如下格式作答。Five years later, my s
24、on was seriously ill suddenly. _When I came near to her, I found it was surely her. _课时作业(九).单句语法填空1powerful2.out; disappearance3inspiration4.into5.in.阅读理解A【语篇解读】这是一篇说明文。研究表明，人们在社交媒体上花的时间越多，可能会感到越孤独。1答案与解析：A词义猜测题。由第一段的内容以及第二段的最后一句可知，一项新的研究表明，如果你用社交媒体来排解孤独，这会带来与你期望相反的效果。简而言之，你在社交媒体上花的时间越多，可能会感到越孤独。所以
25、通过语境可以判断出，第一段中加下划线的短语“going against the grain”与“Doing it all wrong”意思相近。故选A。2答案与解析：C细节理解题。由第五段的第一句可知，Primack和他的团队通过问卷调查了1 787名19岁到32岁的美国成年人的社交媒体习惯，询问他们使用最受欢迎的社交媒体平台的频率和所花费的时间。所以Primack和他的团队是通过做调查来进行研究的。故选C。3答案与解析：B推理判断题。由第四段的最后一句可知，虽然社交媒体似乎提供了填补社交空白的机会，但研究表明，这可能并不是人们过去所希望的解决方案。由此可知，在线互动并不是解决孤独的办法。故选
26、B。B【语篇解读】这是一篇说明文。人们浏览互联网时，经常可以选择一个隐私设置，但这可能没有如同人们想象的那样保护隐私安全。4答案与解析：B推理判断题。由第四段中的“Then the participants answered. explanation they had read”可知，研究人员进行这项研究的目的是调查用户对隐私浏览模式的了解程度。故选B。5答案与解析：C推理判断题。由第二段中的“This option lets you.that you visit”以及第三段的第一句可知，此选项允许您浏览互联网，并记录您访问的每个页面。许多人错误地认为“匿名”模式能更广泛地保护他们的隐私。所以
27、判断出人们认为“匿名”模式能够帮助隐藏浏览历史。故选C。6答案与解析：B写作意图题。由最后一段中的“Companies could clear up.no ones watching”可知，Blase Ur的团队说，公司可以通过更好地解释匿名模式来澄清这种混淆。例如，浏览器应该避免模糊表达。由此判断出最后一段的目的就是为了提出建议。故选B。.读后续写One possible version：Five years later, my son was seriously ill suddenly. I took my son to the same hospital in a hurry and
28、found I left my money at home when I got there. I was so worried that I didnt know what to do. I hesitated for some minutes and went to a woman for help. And at the same time I found the lady who was talking to the patient patiently was so familiar. When I came near to her, I found it was surely her
29、. She was so amazed at seeing me and she gave me a big hug. With tears in her eyes, she told me something about her story. After that year when I left, she came to realize most persons were kind. She tried to forget the experience in the concentration camp and learn to assist people. She was accepted by the hospital as a nurse in the end after five years hard work. On hearing this, I felt so glad that a small act of kindness made a difference.
