课时作业(一) Unit 1 Section Ⅰ Welcome to the unit & Reading Ⅰ.阅读理解 A “Instagram(a social networking app) will cut out many users' accounts on December 20. To protect your account, repost this warning #KeepMyAccountSafe.” Every few months, it happens again—dozens of annoying posts from my kids' friends suddenly start to appear on my Instagram news feed. According to a new study by Stanford University, most kids don't know what news is fake. Researchers asked more than 7，800 middle school and high school students to complete 56 tasks, like distinguishing an advertisement from a real news story on a website and determining which blog in a series was most reliable. They found that students judged the credibility of blogs based not on the source of the material, but on how much detail they contained, or whether a large photo was attached. “Many people assume that because young people are fluent in social media, they can distinguish fake news, but our work shows the opposite to be true，” wrote the lead study author Sam Wineburg, a professor at Stanford's Graduate School of Education. Both Google and Facebook are now taking steps to prevent misleading news from making its way on their platforms, but they won't be able to eliminate it completely.That is why it's now more important than ever to teach our kids to think critically when it comes to believing various information sources. “In the coming months, we look forward to sharing our assessments and working with educators to create materials that will guide young people in the sea of disinformation they encounter online，” said Wineburg. 1．How does the author introduce the topic of the passage A．By stating opinions. B．By showing findings. C．By quoting sayings. D．By citing a post. 2．According to researchers, what determines the credibility of online information A．The source of the material. B．The popularity of the website. C．The amount of detail. D．The size of relevant photos. 3．What does the underlined word “eliminate” mean in Paragraph 4 A．Digest. B．Update. C．Estimate. D．Remove. 4．Which of the following can be the best title for the passage A．Stronger Together: The Internet Changes Our Life B．Be Careful: Kids Are Bad at Identifying Fake News C．Reliable News Has No Place on Social Media D．Educators Have a Long Way to Go to Guide the Young B The Tibet autonomous region has placed nearly half its land area under the strictest ecological supervision(监督). It was announced at an annual meeting of the regional People's Congress, which kicked off on Wednesday. The ecological protection area, which covers more than 539，000 square kilometers, makes up 45 percent of the region's area, and 22 ecological reserves have been built and are operational. According to the government work report, the rate of days with good air quality in Tibet's cities has reached 99.4 percent, and all the region's drinking water sources have met applicable standards. The report also said that t ... ...
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