When I was in the eighth grade, my teacher asked us to write an article about what we would like to do when we grew up. All I could think of was one sentence I want to help other people! During the years, I met many problems. But I never gave up. I know that to help other people I have to help myself first. I encouraged myself after I experienced failures . Finally .my dream really came true. I found a part-time job in a charity. I began to spend my days doing things for people. I have a happy life. That doesn't mean that this kind of life is easy, or that my work is always enjoyable. I an happy because I an doing what I want to do. What do you want to do? Write it down now. If you don't know, you can ask yourself, "What would I do if this was the last day of my life ?" Then write down the first thing that comes to your mind, no matter how silly or impossible it is. If you have an answer, you will know what your dream is. Which of the following is TRUE? A) The writer never have experienced failures in his dream B) The writer could encourage himself when he's in trouble C) Everyone could make his dream true if he has an idea D) No one can make his dream true
B
"Who has more questions, a teacher or a student?"About this question a great learned man told his students that nobody does but a teacher. The students got puzzled. With a smile, the teacher drew the circles."Within the larger one is my knowledge of things and within the smaller one is yours. Out of the circles is still unknown to both of us. Since mine is larger, as you can see, the line that marks out the circle is longer. That makes it clear that who has more chances to face something still unknown." The great learned man believed that _ . A) a teacher has more questions B) a student has more questions C) a teacher has no questions D) a student has no questions
A
Q: Tu Youyou, aged 85, is a medical scientist at the China Academy of Traditional Chinese Medicine.she has just become the first Chinese woman to win a Nobel prize, for helping discover artemisinin,a new kind of medicine known as "Qing-hao-su" in Chinese in 1971 and dihydroartemisinin, used also to treat malaria . The discovery of "Qing-hao-su" and its use in treating malaria are regarded as the most important breakthrough in tropical medicine in the 20th century. It is also a major health improvement for people in developing tropical countries in south Asia, Africa, and South America. This is the first time her work has been widely recognized in China, and it also marks the first time China has won a Nobel prize in the sciences.The last time a Chinese national won a Nobel Prize was in 2012, when Mo Yan got the literature award. Tu also received several medical awards in the past including the 2011 Lasker Award in Clinical Medicine for the same achievements.Tu was the first native Chinese who was educated and works in China to win the Lasker award, too. Tu's discovery is mainly used in _ A) Africa, Asia or South America B) Africa,South Europe or South America C) Africa,South Asia or South America D) Africa,South Europe or America
A: C
Question: Since the 1970s, scientists have been searching for ways to connect the brain with computers. Braincomputer interface(BCI) technology could help people with disabilities send commands to machines. Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person's thoughts. In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts. "Our brain has billions of body cells . These send signals through the spinal cord to the body part to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the body part." Tavella says. "Our system allows disabled people to communicate with outer world and also to control machines." The scientists designed a special cap for the user. This head cover picks up the signals from the scalp and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain. Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands." The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair." He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long. The team will test with real patients to _ . A) make money from them B) prove the technology useful to them C) make them live longer D) learn about their physical condition
Answer: B
If we find a bird nest, we will have a good place of observing and knowing about birds. Birds sit on eggs and take care of their baby birds from April to June. Because the baby birds are too young to leave the nest, mothers often leave and come back to the nest during the time to look for food. So it is good to observe birds. When we observe birds, we'd better hide ourselves in a close place to the nest, and it's better to use binoculars . But how to make a bird nest? It's very easy. If you want to make one, please follow these: Making a nest: A good nest must be very fine, strong, thick and easy. a) Each nest must have six boards. Don't make the boards too slippery. [:Zxxk.Com] b) Dig a small hole in the front of the nest as a door. The "door" is from 3cm to 5cm. So the bird can fly in or out easily. c) Make sure the rainwater doesn't go into the nest. d) One piece of the boards should be easy to open. e) Please don't forget to color the nest. We should leave a hole in the front of the nest so that _ . A) we can clean the nest B) the birds can fly in or out C) we can hang it easily D) it's easy to make
B