阅读理解“Promises to pay” (Line 6, Paragraph 2) means_________.
阅读理解Passage ThreeOn a dry and cold Friday afternoon last October, Sharon Seline exchanged text messages with her daughter who was in college. They “chatted” back and forth ,with the mom asking how things were goring and the daughter answering positively followed by emoticons(表情符）showing smiles,b-1-gsmiles and hearts.Later that night , her daughter attempted suicide.In the days that followed , it came to light that she'd hidden herself in her dorm , crying and showing signs of depression-a completely different reality from the one that she conveyed in texts and Face book posts.As human beings, our only real method of connection is through real communication. Studies show that only 7%of communication is based on writing and speaking. The majority of 93%is based on body language. Indeed , it , s only when we can hear a tone of voice or look into someone's eyes that we're able to know when "I'm fine" doesn't mean they're fine at all.This is where social media gets risky.With modem technology , anyone can hide behind the text , the e-mail , or the Face book post ,projecting any image they want and creating a false image of their choosing. They can be whoever they want to be. And without the ability to receive body language , their audiences are none the wiser.This presents aparadoxwhich doesn't exist before. With all the powerful social technologies at our fingertips ,we are more connected---and potentially more disconnected-than ever before.Every relevant metric(衡量标准）shows that we are interacting at a great speed and frequency through social mediA、But are we really communicating? With 93%of our communication context(语境）lost , we are now attempting to establish relationships and make decisions based on phrases or emoticons , which may or may not accurately represent the truth .Why does social media get risky according to the author?
阅读理解Dolphins are evolved from .
阅读理解Where will the tourists enjoy the magnificent Terracotta Warriors? In the ancient city________.
阅读理解Bird-eating spiders hunt_________.
阅读理解Task 1 Directions:After reading the following passage, you will find 5 questions or unfinished statements ( No. 46 to No . 50 ) . For each question or statement there are 4 choices marked A , B, C and D . You should make the correct choice and write the corresponding letter on the Answer Sheet. A dolphin（海豚）looks more like a fish than certain fishes do . It is an excellent swimmer. The dolphin seems to flash through the water . Like fish, dolphins are completely at home in the water. There they play , feed, sleep, and give birth to their young. Dolphins live in the sea and can live only in the sea. Yet they are not fish. A dolphin must come to the surface to breathe. Fish can take oxygen from the water. Dolphins cannot. Like us, they breathe with lung and must take their oxygen from the air . And they are mammals（哺乳动物）Most mammals are land animals. Dolphins are evolved（进化）from land animals. Long ago, dolphin ancestors（祖先）left the land for the sea. Among the animals was a kind that would become the dolphin we know. No one is sure exactly what kind of animal it was. But there is reason to think it was related to grass-eating animals like the cow. Modern dolphins are fish eaters.Yet their stomachs are like those of animals that eat plants. The make-up of their blood is also like that of grass-eating animals. The best title for this passage is_________ .
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完形填空In our online life , we need to use passwords frequently. We use passwords 21_______e-mail, gaming sites , social networking sites, and other shopping sites. 22_______ ,the passwords most people use are not very23_______ and can easily be "broken" by others. In fact , the most commonly used passwords are so simple that it requires very24_______ effort to figure them out. Can you guess25_________ the most commonly used passwords are? They are: Names of baseball teams , birth dates of a family26________ ，the year of a special sports event , the random numbers like 156468,27_______ the name of a friend , pet , favorite T'V star , or band .There are programs 28_________ to break into people's online accounts. These programs are a 29__________ of trying every word in the English dictionary and the dictionaries 30_________ many foreign languages , in their effort to break into an account. 31__________ can even search words backward. Some will try 32__________ words or words that are followed by numbers,33_____ school 222. These programs can test millions of passwords in a few minutes. So , you are advised to be careful about 34_______ passwords so that they will be hard to break, You are also advised not to make them35________ hand to remember, Meanwhile, you need to change them once in a while.（）