懂你英语Level4

wordL4 Unit 1-1Listening 旅游Christina is on a two-weeks vacation. This is the first vacation she has had for a long time. The last vacation she took was more than 2 years ago. Now she is visiting a friend in San Francisco. Her friend and her husband are living near the center of the city. He works for a start-up pany in Silicon Valley. While he is working, she works part-time at a department store. Christiana hasnt seen her friend for a long time. The last time they saw each other was 3 years ago. At that time, they were both working at a department store. Then Christina quit her job and started her own business. She designs womens clothing. She has 2 employees now and her pany is slowly growing. Christina has e to San Francisco by herself. Her husband didnt e because he has to work. He tried to start a pany 2 years ago,but it didnt work out. His pany failed after only a few months. So now hes workingat another pany and saving money. Once he saves enough money, he plans to start another pany. He doesnt want to give up.This is the second time Christina has been to San Francisco. The first time was when she was a high school student. That was more than 10 years ago. During that tripshe was only in San Francisco for a few days. After thatshe went to Los Angles and New York. This timeshe and her friend plan to relax and have fun.Christina arrived two days ago, the day before yesterday. Her friend met her at the airport and drove her to her apartment. Her apartment is just north of the airport, about 20 minutes from San Francisco. Its a small apartment, but its on a hill and it has a great view. Yesterday, they went downtown and rode the cable cars. Christina was surprised by how steep the hills are. Then they walked along the ocean and ate lunch at the seafood restaurant. From the restaurant, they could see the Golden Gate bridge.Tomorrow theyre planning to drive to Yosemite National Park. By car its about 4 hours away. Christina has never been there before, so she is excited. She has heard that the park is very beautiful. Her friend has been to Yosemite several times. She says its one of the most beautiful places in the world. Christina just hopes that her friend is a good driver.L4 Unit 1-1 vocabulary 伤病和地貌地形Headache can be very painful and can last for a long time. If you have headache your head hurts.A headache can be caused by an injury to the head.A sprained ankle can be so painful that you cant walk. Someone with a sprained ankle may need to use to crutches to walk.If you have a sore throat, it may be painful to swallow. A sore throat can be caused by viruses or bacteria.Aburn is an injury to the skin cause by fire or heat. If you get too close to a fire, you will be burned.An earache is a sharp, dull or burning pain in the ear. mon causes of an earache include an infection, a changing air pressure or water in the ear.Mountains are landforms higherthan 2000 feet or about 600 meters above sea level. Hills are like mountain, but not as tall. Mountains are formed by the forces deep within the earth and are made of many types of rocksRivers are stream of water that usually begin at mountains and flow into the sea. Many early cities were built alongside rivers. Most of the worlds water is in the ocean, which are the large bodies of salt water. The oceans are also an important source of oxygen.The Pacific Ocean is the largest and deepest ocean, covering more area than all the continents put together.Deserts are areas of land that receive little or no rainfall. The amount of rainfall in some deserts is so low that only a few plants can survive.Desert temperatures can range from cold at night to very hot during the daytime, often above 120 degrees F.A valley is low, relatively flat area between hills and mountains, often with the river running through it. Some valleys are formed by flowing river and others are formed by glaciers. L4 Unit 1-1 dialogue 谈论吃饭和预约M: Have you eaten yet.F: Not, I havent and Im hungry.M: Me too. Lets go out for dinner.F: Where toM: What about joes Italian.F: How many times have you eaten there.M: I eat there a lot. Its one of my favorite places.F: I went there two weeks ago and the service was terrible.M: Really, then lets go some places else.What do you suggest?F: How about the royal Indian. Its not far from here.M: Ive never heard of it. Is it good?F: Yes, I have been there several times and Ive never been disappointed.M: Ok, lets try it. Ive never eaten Indian food for a long time.F: You wont be disappointed and the prices are reasonable.M: Ah, so you mean Im going to pay.F: Well, that would certainly be nice.M: What about reservations.F: If you get there early enough, we wont need them.M: I hope youre right.F: Dont worry, if we have to wait, Ill pay the bill.L4 Unit 1-2 Listening 旅游2Today, Christina and her friend are enjoying themselves. This morning they got up very early and drove out of San Francisco. They crossed the Bay Bridge before the early morning mute and drove south. Because it was so early, there were almost not cars.After driving an hour and a half, they stopped to had breakfast. They ordered pancakes and coffee. They also had some fresh fruits. When they finished eating, it was 7 oclock. Then they got back into the car and drove south. Christina wanted to listen to music, so they turned on the radio. An hour later they stopped for gas. They noticed that there was also a charging station for electric cars. Its now 1:15 and they are in Yosemite Park. They have been there for two hours, since 11:15. They are looking at the Yosemite falls, which is the highest waterfall in the park. The water drops a total of 740 meters from the top of upper fall to the base of the lower fall. In another 15 minutesthey plan to eat lunch at a magnificent old hotel in the park. It was built in 1927 and has a great view. They wanted to stay there, but they couldnt get reservation. To get a room at that hotel you usually need to make reservations several months in advance. They plan to stay in the park until around 4 oclock. By thenthey will have been in the park for nearly 5 hours. Then theyll get back into the car and drive back to San Francisco. They plan to eat dinner somewhere along the way. If the traffic isnt too bad, they should be back in San Francisco by 10 oclock. Early tomorrow morning they are going to cross the Golden Gate Bridge and go north along the coast. From some places, you can look out on the ocean and see whales and other sea life. Christina has never seen a whale before, so shes looking forward to it. And tomorrow night they have something special planned. They are going to watch a baseball game. Christina has never seen a baseball game, but she has heard that it is very popular in the US. And the San Francisco baseball team is one of the best. L4 Unit 1-2 vocabulary 力学、几何A force is a push or a pull on the object. A force changes the motion of a moving object.Aforce can be strong or weak and it always has a direction.The earth is a planet that goes around the sun in the circular orbit. The speed of its motion doesnt change and the direction of its motion does. The earth has a layer of gas above its surface, which helps to support life. Atoms are the building blocks of matter. At the center of an atom is its nucleus, which has a positive electric charge. Outside the nucleus are electrons, which have a negative charge. Asteroids(小行星) and ics are object that orbits轨道 our sun, but are smaller than planets. Asteroid that pass close to the earth are called the near-earth objects. The layer of gases, just above the earth surface, is our atmosphere. The atmosphere is made up of gases, such as oxygen and nitrogen. Without an atmosphere, there would be not life on earth. The two lines on the left intersect横断 each other at a right angle which is 90 degrees. The 2 lines on the right are parallel, which means they never cross.The adjacent sides of rectangle are perpendicular, which means they meet at a 90-degree angle. The opposite sides of the rectangle are equal a parallel, which means they never cross. The area of a rectangle is the length times the width. A circle is the 2 dimensional尺寸的 figures with radius半径 and circumference which is the distance around the circle. The area of the circle is R square, where r is the radius and Pi is theratio of the circles circumferenceto its diameter.A sphere is a 3 dimensional figure with the a ratio and volume, which is the three-fourth R cube立方体. All points on the surface of the sphere are equidistant等距离的 from its center.A rectriangle is a 2 dimensional figure with 3 sides, 2 of which are perpendicular.To find its area, multiply the length of the 2 perpendicular垂直的 sides, A and B and divided by 2, A equates相等 one half A B.The electric force between the nucleus and the electrons holds the atom together. A force can increase or decrease the speed of an object, and it can change the direction of motion.L4 Unit 1-2 dialogueM：Have you finished eating yet.F：Not, I havent.Why are you in such a hurry. M：Im sorry, but you are such a slow eater. F：A slow eater? Well I try to enjoy my food. You just eat and swallow. I dont see how you can even taste it.M：Ok, Im sorry. Do you mind if I get another glass of wine. F：No, go ahead. I dont want you to sit there putting pressure on me.I thought we were going to have a relaxing evening. M：Yes, you are right. Id like to relax, but I had a lot on my mind. F：What created? M：Yes. it is. Ive been getting some strange emails from my boss. He wants me to cut down on my expenses. Maybe he wants to fire me. F：Is business bad?M：Yes, it is. But I dont want to talk about it. F：Ok, but Im a good listener. You can tell me if youd like to.M：Thanks, maybe some other time.Ill try to start thinking about it and deal with it tomorrow.F：Good idea. You need to take a break from work. Your health is important and so am I. M：Yes, you are. I dont know what I would do without you. L4 Unit 1-3 listening 旅游3Harry is an American businessman. His job requires him to do a lot of travelling. He takes 9 or 10 trips a year. In the pastsix months he has made five trips. Three were to Asia and two were to Europe.The purpose of these trips is to attend meetings and make presentations. Harry loves to travel and he has traveled to many countries. Most of his trips are for one or two weeks.His first international trip was 15 years agowhen he was 20 years old. He really wanted to see Asia, so he and a friend flew to Tokyo, Japan. From Tokyo, they traveled around Japan for 2 weeks.The people they met very nice, but most of them didnt speak English. Harry tried to speak a little Japanese, but it was difficult. He didnt do very well. When he spoke to people, most of them just looked at him. They didnt understand what he was trying to say. From Japan they went to Korea for a week, and then they went to China. In Chinathey visited the Great Wall in Beijing. He stayed in Beijing for a few days and then they boarded a train for shanghai. It was an overnight trainwith sleeping cars.During the journey, they enjoyed looking out of the window at the countryside. The view from the train was wonderful. Harry will never forget watching the sun go down in the evening. It was a beautiful sunset. The journey to shanghai took many hours, but it was an unforgettable experience. On the train, he met a Chinese Professor who spoke English. He was middle-aged man whose hair was turning grey. He told them about how things were changing in China. It was wonderful to watch him as he was speaking. His eyes were full of energy and excitement. They only stayed in shanghai for a couple of days. Then they returned to the US and went back to school. They had one more year to finish their studies. Harrys next new trips were to different parts of the world. He went to Europe twice, each time to different countries. On one triphe travel through the UK and France. On the next triphe went Italy and Greece.After the Europehe traveled to Mexico and South America. In south Americahe went to Argentina and Brazil. He enjoyed watching some great soccer matches. Then he decided to go back to Asia. But this time, he went to Southeast Asia. He visited Vietnam, Thailand and Singapore. Each country had a charm of its own. After this travel, harry decided to make travel part of his career. He didnt want to work only in the US. He didnt want work only with Americans. He wanted to experience other countries and other cultures. His dream was to work for an international pany. Five years ago his dream came true. Now hes working for a German hi-tech pany. As part of his job, he has to travel a lot. As a result, he has been to many cities and counties. And he has met many interesting people. L4 Unit 1-3 vocabulary牙齿、人体器官 cavity n.腔，洞;蛀牙，龋洞Adental cavity is a hole in the tooth. A cavity is caused by bacteria in the mouth. Brushing your teeth frequently and regularly can help prevent cavities. cracked adj.有裂缝的;声音沙哑的;精神失常的v.破裂;崩溃(crack的过去分词);发沙哑声A cracked tooth can be caused by biting down on some hard. Dentists the treat cracked tooth by covering it with a crown(牙冠). A dental X-ray is a picture of your teeth and gums. An X-ray shows what cant be seen on the surface of teeth and gums. Braces are used by dentists to straighten teeth over a period of years. Those braces are usually for children, they can also be used for adults with crooked teeth. To extract a tooth means to remove it from the mouth. Dentists have to pull hard to extract a tooth. The heart pumps blood to all parts of bodies through a system of arteries and vein. Its located in the chest, between the lungs and it beats about once per second.Artery n.解剖动脉;干线，要道toxin n.毒素;毒质The kidneys remove waste and toxins from the blood. They are been shapedorgan and about 10 cm long, and 6 cm wide. The lungs exchange oxygen from the air with CO2 from the blood. They expand when inhaling air and contract when exhaling air.Inhale vt.& vi.吸气;吸入;非狼吞虎咽Exhale vt.发散出;放出，放射;使蒸发;医渗出vi.呼气;发散;放出The stomach is below the heart and is part of the digestive system. It uses acids to digest food before passing it to the small intestine. Small intestine n.小肠The bladder is a balloon-shaped organ that collects urine from the kidneys. In an audit, the bladder can hold about half a liter of urine.urine n.尿;小便;下泉 a liter of 公升L4 Unit 1-3 dialogue 谈论贿赂P: ou were driving too fast.M: Really. Was i.P: Yes, you were going well above the speed limit.M: Im sorry, officer.P: Ok, I need to see your drivers license. M: Heres my drivers license.P: Your license is expired. Are you aware of that?M: No, sir. Thats a surprise. I didnt know.P: It expired more than a year ago. P: Is this your car.M: No, sir, its a friends.Im borrowing it for the night.P: Get out of the car and put your hands behind your back. M: Why officer? what have I done?P: Just do as I say.M: Ok officer, Im cooperating. Please dont push me.P: Get your hands behind your back.M: Ok, ok!P: Im not asking you. Im ordering you.M: Please officer. I havent done anything wrong.P: Stay still and dont say anything. This is a stolen car, are you aware of that.M: Are you going to arrest me.P: What do you think? Thats what we do with car thieves.M: If you let me go. I will give you a couple of thousand dollars. I havent hurt anybody.P: So now youre trying to bribe me. How stupid can you be. M: I just dont want to go back to jail. Give me a break. P: Sure, you are a nice guy. Id like to give you a break. But thats nothing I can do. M: Please officer. P: Ok, where is the money. Let me see it and I will think about it.L4 Unit 1-4 listening 家政服务Quick service is a successful home repair pany. It provides quick, reliable repair services to homes. It was established 5 years ago and has been expanding rapidly. In the last 2 years, it has opened offices in 3 new cities. Because of its rapid growth, it has to hire many new employees. In the last 6 months, it has hired 50 new employees. The total number of the employees in the pany is now over 500. And the number of the customers has increased to more than 5000. The pany has also improved its business model. Instead of offering only repair services, it can now help customers upgrade their appliances. Quick Service does this by one. If they choose to buy a new one, they will get a discounted price. So a customer can either repair a broken refrigerator for a small fee or buy a new one.If they buy a new one, they will get a discounted price, along with free installation. This is possible because several appliance manufactures have agreed to give QuickService big discounts. QuickService then installs the new appliance and remove the old one. Feedback from customers has been positive. Ahigh percentage of customers have taken advantages of this new service. As a result, QuickService has developeda great reputation. Its dedication to the high quality service has proven to be successful. Its word-of-mouth approach to advertising has been costeffective. The appliance manufactures have also been happy with the results. Their growing relationship with QuickService has helped increase their sales. The worlds population is growing. There are now over 7 billion people in the world. During the 20th century, the population grew from 1.65 billion to 6 billion. Its now going at a rate of around 1.1% per year. That means an increase is about 80 million per year. By 2024 the population is expected to be around 8 billion people. The growth rate used to be higher. In the late 1960s, the rate of growth was about 2%. Since thenthe growth rate has declined. It is estimated that the growth rate will be even less than 1% by 2020. By the year 2050the growth rate should be even less. Even with a declining growth rate, the population will continue to grow. But it will grow at a slower rate. In the past50 years, the worlds population has more than doubled. It has doubled from around 3 billion in 1960 to more than 7 billion in 2011.The rate of growth varies by country. The growth rate in India is more than twice that of china. And the growth rate in Nigeria, which is Africa, is more than twice than Indias growth rate. Russia,one the other hand, has had a negative growth rate in some years. When the country has a negative growth rate, its population is decreasing. L4 Unit 1-4 vocabulary 名人和性格Co-founder of Apple, this entrepreneur was a major figure in the puter industry. He was self-center and difficult to work for, but he led the development of many great products. He died of cancer when he was just 56 years old.Jack Ma is one of the richest and most famous men in china. He es from a poor family and failed his college entrance exam twice. Despite of many failures, he has built one of the worlds largest internet panies. David Beckham is one of worlds richest and famous athletes. He stared playing professional football when he was just 17. Much of his successful at an athlete, is because he practice hard than many other players.As a young girl in Pakistan, Malala became famous for her writing some women education. In 2012, she was shot in the head and nearly killed. She survived the injury and became the worlds most famous teenager. Born in 1942, Stephen Hocking is one of the worlds most famous scientists. When he was 23, he was diagnosed with AIS, a rare disease of the nerves. Because of his disease, he is unable to walk and talk. Shy people areusuallyquiet and unfortable a