懂你英语L4unit1Word格式文档下载.docx

1、Crutchesn.拐杖;支持物;精神上的寄托;胯部vt.支撑;支持sprainvt.扭伤（关节）n.扭伤ankle n.踝，踝关节;脚脖子if you had a sore throat, it may be painful to swallow. A sore throat can be caused by viruses or bacteria.A burn 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

2、sharp, dull or burning pain in the ear. Common causes of an earache include an infection, a changing air pressure or water in the ear.Mountains are landforms higher than 2000 feet or about 600 meters above sea level. Hills are like mountain, but not as tall. Mountains are formed by the forces deep w

3、ithin 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 sou

4、rce of oxygen.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.A valley is low, relatively flat area between hills and mountains, often with the river running through it. Some valleys are formed by flowi

5、ng river and others are formed by glaciers. L4 Unit 1-1 dialogue 谈论吃饭和预约Have you eaten yet.Not I havent and Im hungry.Me too. Lets go out for dinner.Where toWhat about joes Italian.How many times have you eaten there.I eat there a lot. Its one of my favorite places.I went there two weeks ago and the

6、 service was terrible.Really, then lets go some places else.What do you suggest?How about the royal Indian. Its not far from here.Ive never heard of it. Is it good?Yes, I have been there several times and Ive never been disappointed.Ok, lets try it. Ive never eaten Indian food for a long time.You wo

7、nt be disappointed and the prices are reasonable.Ah, so you mean Im going to pay.Well, that will certainly be nice.What about reservations.If you get there early enough, we wont need them.I hope youre right.Dont worry, if I have to wait, Ill pay the bill.L4 Unit 1-2 Listening 旅游2Today, Christina and

8、 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 commute and drove south. Because it was so early, there was not cars. After driving an hour and a half, they stopped to have breakfast. They o

9、rdered pancakes and coffee. They also had some fresh fruits. When they finished eating, there was 7:00. Then they got back into the car and drove south. Christina wanted to listening to music, so she turned on the radio. An hour later, they stopped for gas. They noticed that there was a charging sta

10、tion for electric car. Its now 1:15 and they are in Yosemite Park. Theyve been there for 2 hours since 11:15. They are looking at the Yosemite falls, which is the highest waterfall in the park. The water dropped total of 740 meters from the top of upper fall to the base of the lower fall. In another

11、 15 minutes, they planned to eat dinner at the 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 the reservation. To get a room at that hotel, you usually need to make reservation several months in advance. They planned to st

12、ay in the park until around 4:00. By then, they will have been in the park for nearly 5 hours. Then they will get back into the car and drove back to the San Francisco. They planned to eat dinner somewhere along the way. If the traffic isnt too back, they should be back in San Francisco by 10:00. Ea

13、rly tomorrow morning, theyre 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 lives. Christina has never seen a whale before, so she is looking forward to it. And tomorrow night, they have something speci

14、al plan. 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 the best. L4 Unit 1-2 vocabulary 力学、几何The force is the push or a pull on the object. A force changes the motion

15、of a moving object.A force 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

16、. 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 and comics are object that orbits our sun, but are smaller than planets. Asteroid that pass close to th

17、e earth are called the near-earth objects. The layer of gases, just above the earth surface, is our atmosphere. The layer of atmosphere is made up of gases, such as oxygen and hydrogen. Without an atmosphere, there would be not life on the earth. Asteroid n.天小行星;海盘车;海星adj.星状的orbitn.轨道;眼眶;势力范围;（人生的）旅

18、程，生活过程vt.& vi.在轨道上运行，环绕轨道运行vi.盘旋;绕轨道运行vt.绕轨道而行;进入轨道The two lines on the left intersect 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.

19、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. Intersect vt.横断，横切，横穿 vi.（指线条、道路等）相交，交叉a circle is the 2 dimensional figures with radius and circumference which is the distance around the circle. The area

20、of the circle is R square, where r is the radius and is the ratio of the circles circumference to its diameter.Radius n.桡骨;半径范围;半径（距离）;用半径度量的圆形面积Dimensional adj.维的;尺寸的;量纲的;数因次的A sphere is a 3 dimensional figure with the a ratio the same the volume, which is the three-fourth R cube. All points on the

21、 surface of the sphere are equidistance from its center.Cube n.立方形，立方体;立方，三次幂;小房间vt.求的立方;把（食物）切成小方块;测定的体积equidistance 等距离的A right triangle is a 2 dimensional figure with 3 sides, 2 of which are perpendicular. To find its area, multiply the length of the 2 perpendicular sides, A and B and divided by

22、2, A equates one half A B.Perpendicularadj.垂直的，成直角的;直立的，险陡的;建垂直式的;谑直站着的n.垂直线，垂直面;直立，直立姿势，廉直;垂直测器，锤规;建垂直式建筑，绝壁Equatevt.等同;使相等;相当于the electric force between the nucleus and the electrons holds the atom together. L4 Unit 1-2 dialogueHave you finished eating yet.Not, I havent.Why are you in such a hurry

23、. Im sorry, but you are such a slow eater. A low eater? Well I try to enjoy my food. You just eat and swallow. I dont see how you can even taste it.Ok, Im sorry. Do you mind if I get another glass of vine. No, go ahead. I dont want you to sit there putting pressure on me. I thought we were going to

24、have a relaxing evening. Yes, you are right. Id like to relax, but I had a lot on my mind. What created?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. Is business bad?Yes, it is. But I dont want to talk about it. Ok, b