In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or dec ide it' s still OK to eat? If you're like most people, you eat it. Maybe you follow the "5-second rule", which claims foods are safe to eat if you pick them up within 5 seconds after dropping them. But you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria to make you sick. Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can become sick. One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly. But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile , and carpet. They placed a piece of bread and a piece of bologna on each surface for 5,30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick. So forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. This time, be careful not to drop it! What's the writer's attitude to the "5-second rule"? A) Positive B) Negative C) Neutral D) Cautious
B
One day I was driving to a business appointment and, as usual, I was planning in my mind what I was going to say. I came to a very busy crossroad where the stoplight had just turned red. A young couple, both blind, were walking across the road. Each of them had a white cane . They were overcoming the most feared blindness. I held my breath when I noticed that the couple was not walking on the crosswalk, but was instead stepping directly into the middle of the crossroad. Without realizing the danger they were in, they were walking right into the path of the oncoming cars. I was frightened for them because I didn't know if the other drivers understood what was happening. Then I saw a _ unfold before my eyes. Every car in every direction came to a stop at the same time. Nobody can yelled, "Get out of the way!" Amazed, I noticed that everyone's attention was also fixed on the couple. Suddenly the driver to my right reacted. He yelled, "To your right."Other people followed, shouting, "To your right!"Trusting their elite canes and the calls from some concerned citizens, they made it to the other side of the road. I could judge they had no idea what was really going on around them. Yet I immediately felt smiles appeared on everyone's face. The driver to the left of me was saying, "I can't believe it!" I thought all of us were deeply moved by what we had just seen. Here were human beings stepping outsides themselves for a while to help other people in deed. It can be inferred from the text that _ . A) people felt a relief after the couple crossed the road B) the author was amazed at the expressions on the couple's faces C) the couple's quick crossing of the road surprised everyone D) calls from everyone made the couple realize their danger
A
Q: Digital wallets have been called the future of real-world payment technology. With major players like Alipay, WecChat and Apple Pay becoming popular, it seems to be a safe bet that a change in consumer payment technology is coming soon. A recent study by Citi Retail Services found that a growing number of people are embracing digital wallets, due in large part to their convenience and ease of use , "There's no question 2016 will be an important year as digital wallets gain more acceptance.", Leslie MeNamara, managing director of partner management, Citi Retail Services, noted. Last month, CNN reporter Will Ripley experience a day in Beijing without his wallet. "In China's largest cities, you can definitely survive without carrying a pocket full of cash and credit cards- as long as you've got your smartphone," he wrote. "A huge number of businesses in Beijing accept mobile payments." He paid for breakfast by scanning a QR code on the window of a hole-in-the -wall restaurant. All he had to do was enter a password and the transaction was completed. Then he also used his phone to pay for movies tickets, buy takeout food, order goods for delivery. In fact, he was not the only one to enjoy this convenience. His assistant Shen Lu also paid her household water bill with her mobile phone. In seconds, she was able to transfer funds( ) from one of several linked accounts. Unlike the situations in the US and other countries, "China doesn't have a really money-making credit card system". Gu Yu, co-founder of the new payment app Mileslife, told CNN. "So Chinese people just skipped credit cards and wet straight to mobile payments." Gu also pointed out the advantages of mobile payments. "No coins or bills that can be lost or stolen, electronic receipts, the ease of keeping track of spending and of course, no wallet taking up space." he said Which of the following statements is NOT true according to the artiele? A) To use Alipay, WeChat and Apple Pay is much more convenient than cash for payments. B) By scanning a QR code, the transaction is done. C) You will receive electronic receipts if you use a mobile payment app. D) The Chinese credit card has a very perfect system.
A: D
(Q).
Often speakers at a meeting experience dry mouths and ask for a glass of water.You can solve the problem by activating the saliva in you mouth.First gently bite the edges of your tongue with your teeth.Or,press your entire tongue to the bottom of your mouth and hold it there until the saliva flow.Or you can imagine that you are slicing a big juicy lemon and sucking the juice. Before you begin your talk,be kind to your voice.Avoid milk or creamy drinks which coat your throat.Keep your throat wet by drinking a little sweetened warm tea or water-down fruit juice. If you sense that you are losing your voice,stop talking completely.Save your voice for your speech.You may feel foolish using paper to write notes,but the best thing you can do is to rest your voice.If you feel the need to see a doctor,perhaps getting some advice from a professional singer can be a better choice.In the meantime,do not even talk in a low voice. What about drinking alcohol to wet your throat?I advise you not to touch alcohol before speaking.The problem with alcohol is that one drink gives you a little confidence.The second drink gives you even more confidence.Finally you will feel all-powerful and you will feel you can do everything,but in fact your brain and your mouth do not work together properly.Save the alcohol until after you finish speaking. Perhaps you want to accept the advice,but you may wonder if you can ever change the habits of a lifetime.Of course you can.Goethe,who lived before indoor skating rinks or swimming pools,said,"We learn to skate in the summer and swim in the winter."Take this message to heart and give yourself time to develop your new habits.If you are wiling to change,you will soon be able to say that you will never forget these techniques because they've become a part of your body. What does the writer suggest when you feel you are losing your voice? A) Going to see a doctor. B) Asking a professional singer for help. C) Whispering the things that you want to say. D) Keeping on talking rather than use a paper to write notes.
(A).
B