Earthquakes are common in nature and make sounds below the Earth's surface thousands of times a day. But most are too weak to feel and big earthquakes are less common. Here are some things to do to prepare for an earthquake and what to do once the ground starts shaking. Preparation Tips * Have a plan for an earthquake. *Consult a professional to learn how to make your home sturdier, such as fixing bookcases to the wall, using strong locks on cupboards , and fixing the water heater to the war firmly. *Locate a place in each room of the house that you can go to if an earthquake happens. It should be a place where nothing is likely to fall on you. *Keep some canned food, an up-to-date first aid box, 3 gallons(11.4 liters) of water per person. * Know how to turn off your gas and water mains. If Shaking Begins *Drop down; take cover under a desk or table and hold on. *Stay indoors until the shaking stops and you are sure it's safe to leave. *Stay away from bookcases or furniture that can fall on you. *Stay away from windows. *If you are in bed, hold on and stay there, protecting your head with a pillow. * If you are outdoors, find a clear place away from buildings, trees, and power lines. Drop to the ground. * If you are in a car, slow down and drive to a clear place. Stay in the car until the shaking stops. One is advised to stay _ if the ground is shaking. A) in the kitchen with a bottle of gas B) in the bedroom with two beds C) in a dining room with cupboards D) in the study full of bookshelves
B
When I first entered high school, I knew no one at my school. All my friends in middle school went to other schools. I wanted to make some new friends. However, I was shy and wasn't good at making new friends. On my first day at school, I looked at others who were talking in groups happily. How I wish I were one of them! I guess I was very lucky then. At lunch in the dinning hall, when I was eating at a table alone, a girl came to me. "Excuse me, is this seat taken?" she asked. I immediately shook my head. She smiled and sat down opposite to me. I felt a little _ and didn't know what to say at all, but I really wanted to communicate with her. It was a good opportunity to make friends with her. When I looked up, I found she was smiling at me. Her smile calmed me down. "I really like this school. It's beautiful, but I don't know anyone here. All my friends went to other schools," said the girl. Hearing her words, I immediately said, "my friends are not here either. Can we be friends?" I was surprised. I couldn't believe I would say something like that, and to my surprise, that girl immediately said "yes". We both smiled. We became very good friends. Now it's the beginning of a new term again. Many students may have no friends at their new schools. If you are also as shy as I used to be, please don't be afraid to talk to others. You may get a surprise and make a new friend. After all, others want to make new friends, too. We know on her first day at school, the author _ . A) hoped she could make some new friends B) only knew a few people at her school C) met some old friends at her new school D) hoped she could go to her old friends' schools
A
Q: There is a very special wolf that lives in Africa. They are actually called, the African wild dog, of painted dogs. These animals live in open woodlands, or in the plains of Africa. Today, however, most of the animals can be found in eastern or southern Africa. These animals are beautiful. They have rounded ears instead of pointed like most dogs, and they have four toes on each of their four feet, also a unique characteristic because other dogs have five. Their fine fur is always different from each other. The fur is usually a combination of black, brown, red, and white, and sometimes even yellow. No wonder they're called the painted wolf. The African wild dog is a very social animal. They live in groups and have numbers from five to about twenty. The members of a group are always very close to one another. They communicate in their own language or body language. When someone is very old or sick, the others will help, and they are willing to share the food with the elders and with those who are weak, which is what we should learn from. The family does everything together, from raising young, to sleeping together, to hunting. When they hunt, they will work together suing team work to kill animals that are larger than them. They sometimes hunt farm animals. This is unfortunate, because both poachers , and people who own farms shoot the painted dogs who are just trying to survive. Before, there used to be many large groups throughout the land, but now the African wild god is very rare. They are also losing their population because of their own loss of habitat thanks to human's farming and forest cutting. Why do African wild dogs get the name "painted dogs"? A) They all have colorful fur. B) The dogs in the same group are of different colors. C) Artists love to paint them in different colors. D) None of them has the same color.
A: A
Does solving a math problem give you a headache? Do you feel nervous when you sit a math exam? For most students, math can be tough but scientists have proved that math problems can actually trigger physical pain. Scientists came to his conclusion with an in-depth experiment, which was published in the Public Library of Science One journal. They began by finding out how much participants fear math. Those involved were asked a series of questions such as how they feel when they receive a math textbook or when they walk into a math lesson. Based on their answers, participants were divided into groups. One group was made up of people who were particularly afraid of math and participants in the other group were more comfortable with the subject. Both groups were then given either math tasks or word tasks. When a math task was going to come next, a yellow circle would appear but when a word task was soon to come, a blue square would be shown. Using a brain-scan machine, scientists noticed that whenever people from Group One saw a yellow circle, their brain would respond in a way similar to when their body is feeling pain. It was like the pain they would fee, for example, if they burnt their hand on a hot stove. But they reacted less strongly when they knew that they would be faced with a word task. However, scientists saw no strong brain response from people in the second group. Math can be difficult, and for those with high levels of mathematics-anxiety (HMA), math is associated with tension, apprehension and fear. "When you are really thinking about the math problems, your mind is racing and you are worrying about all the things that could go wrong," explained Ian Lyons from University of Chicago, US, leader of the study. "The higher a person's anxiety of a maths task, the more he activated brain regions associated with threat detection, and the experience of pain." More interestingly, the brain activity disappeared when participants actually started dealing with the math tasks. "This means that it's... What can be concluded from the experiment? A) The anticipation of math has no relation to students' confidence in math. B) Moderate mathematic anxiety promotes students' academic performance. C) Physical pain caused by HMA disappears in the process of doing math problem. D) Effective solutions have been worked out to lower students' anxiety of math.
C