Many kinds of dinosaurs' bones (find) recently by Chinese scientists in Nanyang, Henan Province. the scientists inspected the bones, they were surprised (spot) these dinosaurs could not only run the others but also climb the trees.
Dinosaurs died suddenly around 60 million years ago. Some scientists think came after an (expect) incident when a huge rock from space hit the earth put too much dust into the air. Others think the earth got too hot for the dinosaurs to live on any (much). Nobody knows sure why and how dinosaurs disappeared from the earth in such a short time.
Teens around the world use social media a lot. But is this a 1 thing? While you can say nice and 2 things on the Internet, you could also say mean and hurtful things too. When someone says something mean or hurtful 3, it's called cyberbullying (网络欺凌).
When people say mean things to us, we feel 4, depressed and powerless. These are just some of the possible 5 effects that could affect teens who are cyberbullied. When people are often sad or depressed, they could begin to 6 suicide (自杀).They think that their lives aren't worth anything or that their lives are too 7 to handle. It's difficult to believe that one person saying mean or 8 things to another person could make him think about 9 himself, but it's true and it does happen. Now, you could 10 everything that was said. You could say that teens can just tum off their computers or their phones. They can just block (屏蔽) the person who 11 them or just simply ignore him. 12 people, especially teens love going on the Internet and talking to people. It's part of their daily lives. It's 13 to tell teens to turn them all off. In addition, 14 they block someone, the person can just 15 coming back on a different account or as someone else. Also if it's a 16 posted video, picture or message, everyone can see it and 17 report or share it. It's 18 to block everyone.
And finally no one can just 19 so many mean words that are being said to them.
Overall, cyberbullying is a (n) 20 thing that people do. There should be laws to protect people from cyberbullying.
Recently, many e-commerce platforms, including Didi Taxi, Ctrip, Fliggy, JD and Taobao, have been uncovered that they are cheating their frequent customers. Their ways are pretty clever. When there are new users or conservative old users, they will give a quite appealing price to attract them into registering and buying goods. However, their big data is not friendly to the stable users and frequent visitors. The system always offers them higher price for the same products or service. How does this happen? According to the data analysis, the system knows clearly that although they feel the price is high, they will finally pay the bill. By collecting and analyzing users' profiles, buying habits and other information, big data recommends the same products to different users with different prices.
Companies also try other ways to make money, making online consumption far more worrying. For example, video websites always offer 120 seconds' advertisements, which drives people crazy. And even if you pay for the membership to get rid of the ads, you have to "enjoy" 15-second "private" ads. By broadcasting them, companies make huge profits—second to the membership fees. Also, owning 100Mbps network, you still put up with the slow speed when you are downloading a song. You have no choice but to become a VIP when you seek high quality services. Users seem to be lambs (羊羔) among wolves. Even though they say, "Since you have money, I'll charge you more", we can't do anything about it.
It pains us that we haven't figured out a way to deal with the problem. The only thing we can do is replacing our iPhones with Android phones if we want to buy a membership card, and applying for new accounts if we want cheaper hotels. Not finding a way to fight back, we can't do anything but accept them passively.
In an online class, developing healthy patterns of communication with professors is very important. While I have only listed two of each, there are obviously many other situations that can arise. Students should be able to extend the logic (逻辑) of each to their particular circumstance.
Do's
• Questions about subject content are generally welcomed. Before asking questions about the course design, read the syllabus (教学大纲) and learning management system information to be sure the answer isn't hiding in plain sight.
•Participate in discussion forums (论坛), blogs and other open-ended forums for dialogue. Be sure to stay on topic and not offer irrelevant information. Make a point, and make it safe for others to do the same.
Don'ts
•Don't share personal information or stories. Professors are not trained nurses, financial aid experts or your best friends. If you are in need of a deadline extension, simply explain the situation to the professor.
•Don't openly express annoyance at a professor or class. When a student attacks a professor on the social media, the language used actually says more about the student. If there is truly a concern about a professor's professionalism or ability, be sure to use online course evaluations to calmly offer your comments.
A. That's what they are for.
B. Turn to an online instructor for help.
C. If more information is needed, they will ask.
D. Remember that online professors get a lot of emails.
E. Below are some common do's and don'ts for online learners.
F. Everyone has taken a not-so-great class at one time or another.
G. Ask questions, but make sure they are good, thoughtful questions.
增加：在缺词处加一个漏字符号 (∧) ，并在其下面写出该加的词。
删除：把多余的词用斜线 (\) 划掉。
修改：在错的词下画横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者 (从第11处起) 不计分。
Last Wednesday our class organized a environmental activity whose theme were "Join Together to Build a Civilized City" in a community. The students divided into three groups. We Group One went from door to door recycling the using things. The second group had cleared up the posters and advertisements on the walls as good as the rubbish on the ground. The last group handed out the magazine of the environmental protection and we also invited the residents to take part. The local praised us with our practice and gave us much appreciation，it made us all feel happy.
