(Q).
Winter is very cold in many countries. It's easy for you and me to keep warm. If we are cold, we can just buy a warm coat or use a heater and we will feel better. But what about animals? How do they keep warm in winter? Some animals migrate . This means they travel to places where the weather is warmer. Many birds leave before the winter starts. They fly in groups. If they fly together, the trip will be safer. They like to migrate to the same places every year. Do you know how they can find the same places? Scientists say that birds use the sun, moon and stars to help them. Other animals like moose also migrate. Fish and whales swim to warmer water. Some animals don't have leave their homes. They hibernate in winter. They fall into a very deep sleep. The animals' temperature drops and their breathing slows down. Before the winter, these animals must eat too much food that they get very fat. If they don't eat enough, they may die when they are hibernating. Which is the best title for the passage? A) Why birds migrate in winter B) How animals hibernate in winter. C) How animals keep warm in winter. D) Why animals like winter.
(A).
C

(Q).
Tom was a college student. He often made excuses not to attend classes. Also he spent much of his free time playing computer games. He never went to the library to study. How time flew! At the end of the term, there was an important thing--the final exam . He was afraid of it. "What should I do?" Tom walked up and down in the room the day before the exam. He was so nervous. Suddenly, he thought of an idea. The next morning, Tom went into the exam room very early. He found a young man and took a seat next to him. "Hey you!" Tom greeted. "What?" The young man asked. "Can you help me?" Tom said politely. "Please let me copy your paper during the exam." When hearing his words, the young man just smiled but said nothing. When the bell rang, the young man stood up and came to the front, saying "It is the time for the final exam. Now I will hand out the papers to all of you and collect them in one hour." Tom sat there with his mouth wide open. Tom walked up and down in the room the day before the exam because _ . A) he liked studying in the library B) he wanted to take exercise C) he was worried about the coming exam D) he was waiting for somebody
(A).
C

(Q).
Is your TV connected to the Internet? What about your chair or your fridge? It is possible that they are not. But in the future, most things in your home may be connected, as the so-called "Internet of things" is developing. The Internet of things may be coming sooner than you think. It is reported that during his speech earlier this year, Samsung CEO BK Yoon spent a lot of time talking about the Internet of things. He said that five years from now,every Samsung product will be part of the Internet of things, whether it's a washing machine or a vacuum cleaner . So, how do household objects that are part of Internet of things work? Well, think of a usual chair. When connected to the Internet, the chair warms up when it knows that the user has just walked into the room and is feeling cold. An Internet-connected camera, like a smart-home camera, could help people feel safer in their homes. It can recognize people's faces, and even can see when someone passes by in the dark. Then it can send you a message on your smartphone to let you know who's there. If the person is someone you don't know, it can tell you that, too. But according to MIT Technology Review, whether companies are connecting dog food bowls or security systems to the Internet, there may be problems. For example,many early connected-home devices don't have much built-in security, which means they could be hacked ,In addition, it could be difficult to get these devices to work together because they are made by different companies. To fight this, many companies have joined the Open Interconnect Consortium, which had 45 members by late 2014. So, picture this: you walk in through the front door of your home. The temperature changes to make you feel comfortable after a long day at school. Your favorite music starts playing for you. Do you think that this would be a good thing? It may happen sooner than you think. What's the problem about the Internet of things? A) Companies which produce connected-home devices haven't joined together. B) Connected-home devices may not work together and can easily get hacked. C) Companies have difficulty connecting security system to the Internet.' D) These new devices are produced by different companies.
(A).
B