Nowadays film cameras are going out of our life. Do you remember how it works? And do you know the difference between a film camera and a digital camera?
A film camera is a light-proof box, which all light can’t go through. It has a lens (镜头) system to focus light onto the film at the back of the camera.
Let’s suppose that we are outside on a beautiful summer day trying to take a picture of the family dog. We are using a film camera. We finally get the dog to lie still. You point the camera at him. Light goes into the camera lens and hits the shutter (快门). In other words, nothing happens yet. Now let’s say that the dog looks really cute and you decide to take a picture. When you press the button, the shutter opens for a very short period of time. A small amount of light passes through and hits the film at the back of the camera. This creates an upside-down and reversed (反向的) picture on the film. When you finish the roll (卷) of the film, you can take it to the photo shop to develop it and you will have a great picture!
Film cameras and digital cameras work in a similar way. In digital cameras, the light falls not on film but onto a sensor (传感器) called a CCD. This change light and color into a digital information or pixels (象素). The CCD is the heart of any digital camera and usually the most expensive part - depending on how good it is.
根据短文所提供的信息选择最佳答案
The underlined word “light-proof” in the passage means “_____”.
A.不透明的 B.不透风的 C.不透光的
_____ is used to focus light onto the film at the back of the camera.
A. A lens
B. A lens system
C. A light-proof system
_____ shows the picture of a running boy with an ice cream in his left hand on the film camera.
Which of the following is TRUE according to the passage?
A. Film cameras and digital cameras work in the same way.
B. After taking pictures with film cameras, we can get a great picture immediately.
C. The price of a digital camera is based on the ccd。
The best title for this passage should be _____.
A. How do Film Cameras Work
B. The Reason Why Digital Cameras Are More Developed
C. Film Cameras and Digital Cameras
Taylor Burghard is a young businesswoman. She grew up around technology in her parents' computer shop. She even helped her dad make a sale when she was just 2 years old: she showed a customer how easy it was to use a computer. Now, she has her own business. “We recycle old computer pieces and turn them into jewelry," she said.
Taylor Burghard sells her jewelry, which is made of keyboard keys, memory hardware and other computer parts.
Taylor sells her jewelry online, in her parents' store and in a California toy store where her aunt works as a buyer. Taylor’s friends buy her jewelry for gifts. She said it made her feel so happy when people bought the jewelry.
Taylor said she was also happy to find a way to help recycle old computers and reduce electronic waste. Her dad even asked other businessmen to send their old keyboards and computer parts to the store for Taylor to use.
She has three goals. "I want to help pay for college, learn about business and have fun," she said.
| A．She shouted aloud. |
| B．She introduced a computer. |
| C．She showed it was easy to use a computer. |
| D．She showed it was interesting to use a computer. |
①in her classroom
②in her parents' store
③in a California toy store
④on the Internet
| A．①②③ | B．①②④ | C．①③④ | D．②③④ |
| A．Someone who buys something. |
| B．Someone who owns something. |
| C．Someone whose job is to buy things for a shop. |
| D．Someone whose job is to sell things for a shop. |
| A．Two. | B．Three. |
| C．Four. | D．Five. |
| A．Clever. | B．Stupid. |
| C．Funny. | D．Friendly. |
| A．A kid of 7 | B．A boy of 14 |
| C．A girl of 17 | D．A man of 26 |
| A．Sunday | B．Monday | C．Tuesday | D．Wednesday |
| A．$690 | B．$710 | C．$730 | D．$750 |
| A．the lunches cost too much |
| B．people have different tastes |
| C．there are many restaurants |
| D．they may bring lunch-boxes |
| A．Youth Explorer is the name of the program. |
| B．More than 15 students are in each program. |
| C．We can see three kinds of animals in the program. |
| D．You need to hand in an application for the program. |
Even in early time, people could realize the importance of dreams and knew that dreams gave meaning to life. Every great achievement has been the result of years of dreaming. If a person has a dream and holds fast to it, he or she will find a way to bring it into reality (现实).
Children do not have much experience or knowledge. However, they are natural dreamers. We should not laugh at them for being naive. Many great men were dreamers when they were children. One such dreamer was Thomas Edison. He used to be ostracized (排斥) when he was in primary school, but his achievements were greater than everyone else’s in his time.
Teenagers and young people should also be encouraged to dream. The world is full of successful teenagers and young people. They dreamt big and their dreams changed their lives and even the world. Steve Jobs and Bill Gates are the good examples. They have developed technology and brought great progress to human besides making money for themselves.
Older people should believe that it is never too late to dream and that human mind is never too old to make dreams turn into reality. Colonel Saunders realized his dreams at the age of 67 and set up the biggest fried chicken company (KFC) in the world.
To dream is a wonderful ability which can lead to wonderful results. Olympic records were broken by players who were brave enough to dream. No one is too young or too old to dream and to make dreams come true.
| A．find a way to dream |
| B．dream and hold fast to them |
| C．get the meaning of life |
| D．have very good school results |
| A．their dreams are natural |
| B．they are greater than everyone else |
| C．they have much knowledge |
| D．their dreams might change the world |
| A．Setting up a big company is a wonderful ability. |
| B．Developing technology can bring great progress. |
| C．Even older people can make their dreams come true. |
| D．People should be brave enough to dream when they are young. |
| A．逆反的 | B．幼稚的 | C．调皮的 | D．冲动的 |
| A．From Dream to Reality |
| B．Good Examples of Dreams |
| C．Achievements in History |
| D．A list of Successful Dreamers |
阅读下列短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。
I drove to Hurtwood Middle School last Tuesday. I was a student there ten years ago. When I got there, I thought I was at the wrong place! There were more buildings in the school than before! I went to the office building first. An old man was reading a book there.
"Sir, are you Mr Bhanot?" I asked.
"Yes. What can I do for you?" he said.
"I'm Alan Smith. I was your student before and you were very friendly and smart then."
"Alan, my dear. Tell me what you are doing now." he said.
We talked for an hour. Mr Bhanot was happy to accompany me and we went to the library, a popular place in old days. The library was now bigger. I said, "The library is great." He answered, "Yes, we have more books now. Everything has changed."
I went back home at 4:00 pm. I really miss those days when I was a student. I want to go there again someday!
| A．He drove there. | B．He took a bus. |
| C．He walked there. | D．He went there by subway. |
| A．The library. | B．The office building. |
| C．The dining hall. | D．The classroom building. |
| A．funny and friendly | B．kind but strict |
| C．smart and friendly | D．smart but strict |
| A．Alan was a bad student at school. |
| B．Mr Bhanot was the writer's teacher before. |
| C．Alan studied in Hurtwood Middle School for five years. |
| D．The library didn't have any changes. |
| A．One of my teachers. |
| B．The library in my old school. |
| C．A great day in my life. |
| D．A visit to my old school. |
Mike and Dick work in the same office. They don’t like the cold weather. And one day they decided to take their holiday in Australia. Their plane arrived in Sydney at nine in the morning. They had a good rest in a hotel. The next morning they rented (租) a car in the city and began their travel. A few hours later, the sun was shining in the sky and there were no shade trees (遮阴树) beside the road. It was so hot that they could hardly go on driving. They had to stop to look around. Mike found a river about half a kilometer away from them. They were both very happy and drove the car quickly. Soon they got to the river. Before they jumped into the water, Dick saw a boy playing under a big tree. He asked,“Are there any sharks (鲨) in the river, boy?”“No, there aren’t,”answered the boy. So they began to swim in the river. After a while, Dick felt something hit against his leg. He told Mike about it. They were afraid and stopped swimming. Dick asked loudly,“Is it true that there aren’t any sharks in the river?”“Yes, sir,”said the boy,“There’re a lot of crocodiles (鳄鱼) in the water. All the sharks have swum away!”
根据短文内容，回答问题。When did they arrive in Sydney?
_______________________________________What was the weather like the next day?
_______________________________________What did they do in the river?
_______________________________________A shark hit Dick’s leg, didn’t it?
_______________________________________Why weren’t there any sharks in the river?
_______________________________________