D
Film cameras and digital cameras work in a similar way.
Film cameras
After all, a film camera is basically a light – proof (不透光的) box. 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. What happens? Light goes into the camera lens and hits the shutter. In other words, nothing happens yet. Now let’s say that the dog looks really cute and you decide to snap a picture. What happens? When you press the button, the shutter open 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)image on the film.
When you finish the roll of the film, you can take it to the photo shop to develop it and you will have a great picture of your dog!
Cameras come with different lens lengths. Why does it matter? Many small cameras have shorter focal lengths, which means that there is a small distance between the lens and the place where the light focuses at the back of the camera. This gives you a large view of the area you are taking a picture of. Lenses with a long focal length show a smaller area but allow you to focus on distant objects and make them bigger. They are often called telephoto lenses. A good example of a long focus lens is one that is used by sports photographers to get photos of football players as if they were standing right beside them.
Digital cameras
In digital cameras, the light falls not on film but onto a sensor (传感器)called a CCD (Charge Coupled Device). This digitally converts(转变) light and colour 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.
67．Which of the following statements is TRUE?
A．Both digital and film cameras focus light onto the film.
B．All cameras have a sensor.
C．Digital cameras and film cameras have something in common. .
D．Small cameras usually have longer focal lengths.
68．In the “Film cameras” part, you fail to take the picture of the dog because _____.
A．light goes into the camera lens and hits the shutter
B．you haven’t aimed the camera at the dog
C．the image of the dog is not created
D．the sensor fails to convert light and colour into a digital information
69．The main reason that sports photographers can get clear and big photos of players is that _ ___.
A．they use digital cameras B．the lens of their cameras is excellent
C．their focus lenses are short D．their focus lenses are long
70．Generally speaking, a digital camera’s price is ____.
A．closely related to the quality of the CCD
B．irrelevant to the quality of the CCD
C．closely related to the lens
D．irrelevant to the lens
Humans may not have landed on Mars (火星) just yet, but that isn’t stopping a European company from devising a plan to send four people to the Red Planet within the next few years. This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.
“Everything we need to go to Mars exists,” said Mars One co-founder Bas Lansdorp in March 2014. “We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans. For a one-way mission, all the technology exists.” Yet the four astronauts chosen for the trip will be stuck on Mars—forever. And despite Mars One’s thorough planning, there are a number of challenges that may prevent the mission from ever taking place. The biggest road block could be the mission's huge cost ($6 billion). However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.
Those broadcast rights will also play a part in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In addition to the cost, several other potential problems could inhibit (阻止) the mission to Mars.
“It’s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,” said Adam Baker, senior lecturer in space engineering at Kingston University in London. “The size of the rockets you’d need to do this would be absolutely colossal.”According to Project Mars One, humans could send four people to Mars within the next ________years.
| A．seven | B．eight | C．ten | D．six |
According to Bas Lansdorp, which of the following is NOT TRUE?
| A．Robots are prepared for the settlement for humans. |
| B．He could not come up with the fund for Mars One. |
| C．We humans have the rockets to send people to Mars. |
| D．The equipment is ready for humans to land on Mars. |
The word “colossal” in the last paragraph is closest in meaning to ___________.
| A．very large | B．very small |
| C．medium | D．average |
Which of the following is an appropriate title for this passage?
| A．Ready for a Round Trip to Mars |
| B．Ready for a Short Visit to Mars |
| C．Ready for a One-way Trip to Mars |
| D．Ready for a Walk on Mars |
IKEA is the world’s largest furniture retailer, and the man behind it is Ingvar Kamprad, one of the world’s most successful entrepreneurs. Born in Sweden in 1926, Kamprad was a natural businessman. As a child, he enjoyed selling things and made small profits from selling matches, seeds, and pencils in his community. When Kamprad was 17, his father gave him some money as a reward for his good grades. Naturally he used it to start up a business—IKEA.
IKEA’s name comes from Kamprad's initials (I.K.) and the place where he grew up (‘E’and ‘A’). Today IKEA is known for its modern, minimalist furniture, but it was not a furniture company in the beginning. Rather, IKEA sold all kinds of miscellaneous goods.
Kamprad’s wares included anything that he could sell for profits at discounted prices, including watches, pens and stockings.
IKEA first began to sell furniture through a mail-order catalogue in 1947. The furniture was all designed and made by manufacturers near Kamprad’s home. Initial sales were very encouraging, so Kamprad expanded the product line．Furniture was such a successful aspect of the business that IKEA became solely a furniture company in 1951.
In 1953 IKEA opened its first showroom in Almhult, Sweden. IKEA is known today for its spacious stores with furniture in attractive settings, but in the early1950s, people ordered from catalogues. Thus response to the first showroom was overwhelming: people loved being able to see and try the furniture before buying it. This led to increased sales and the company continued to thrive. By 1955, IKEA was designing all its own furniture.
In 1956 Kamprad saw a man disassembling(拆卸) a table to make it easier to transport. Kamprad was inspired. The man had given him a great idea: flat packaging. Flat packaging would mean lower shipping costs for IKEA and lower prices for customers. IKEA tried it and sales soared. The problem was that people had to assemble furniture themselves, but over time, even this grew into an advantage for IKEA. Nowadays, IKEA is often seen as having connotations(内涵) of self-sufficiency. This image has done wonders for the company, leading to better sales and continued expansion．
Today there are over 200 stores in 32 countries. Amazingly, Ingvar Kamprad has managed to keep IKEA a privately-held company. In 2004 he was named the world’s richest man. He currently lives in Switzerland and is retired from the day-to-day operations of IKEA. IKEA itself, though, just keeps on growing.The author states in Paragraph 6 that flat packaging___________.
| A．needs large space to assembly furniture |
| B．is a business concept inspired by Kamprad |
| C．helps reduce transportation costs |
| D．makes the company self-sufficient |
What is the main idea of the passage?
| A．Ingvar Kamprad is the richest man in the world. |
| B．IKEA is the world’s largest furniture retailer. |
| C．The advantage of IKEA’s furniture is dissembling. |
| D．Ingvar Kamprad established IKEA and led it to great success. |
What is the author’s attitude towards IKEA’s future according to the last paragraph?
| A．Indifferent | B．Optimistic |
| C．Doubtful | D．Pessimistic |
The passage is developed primarily in terms of ___________.
| A．order of events |
| B．analysis of a process |
| C．examples that illustrate(阐释) a problem |
| D．comparison and contrast |
The Palm Islands are the largest artificial islands in the world and are under construction in Dubai, in the United Arab Emirates. They are being developed as tourist, leisure, and residential resorts, and will increase the coastline of the country by 120 kilometres.
After four years of planning and careful consideration of the environmental issues, construction started in 2001. Dutch engineers with experience of reclaiming land from the sea were employed in the building of the first two islands. The site for all three islands is an area of the sea where the water is not very deep. Sand is taken from the seabed and sprayed into the construction site. Although the shallow water facilitates this process, the islands are still very exposed to the currents and tidal movements of the sea. Rocks are used to hold the sand in place resulting in a large crescent (月状的) structure. This acts as a breakwater and protects the islands from the sea.
The first two islands are in the shape of date palm trees and consist of a trunk and 17 frond, or leaves coming off the trunk. The first island, named Palm Jumeirah, has three five-star hotels in the trunk, and luxury homes in the leaves. It is astonishing that when these homes went on sale in 2004, they were all sold within three days.
The second palm, Jebel Ali, was started in 2002 and is designed to be an entertainment centre. Six marinas (小游艇船坞) are planned, with a water theme park, and homes built on stilts (桩柱) in the water.
The Palm Deira planned to be the largest of the three islands, with a length of 14 km and a width of 8.5 km, an area larger than the city of Paris. It will consist of residential properties, marinas, shopping malls, sports facilities, and clubs. These will be open to both residents and tourists.
More artificial islands, the World Islands, are now being constructed near the Palm Jumeirah. They consist of 300 private islands grouped into the shape of the continents of the world and will be used for estates, private homes, community islands, and resorts.
Unquestionably, these artificial islands are one of the wonders of the modern world. They will also maintain Dubai’s status as one of the leading tourist destinations in the region.According to the passage, all the following are right EXCEPT___________.
| A．Some Dutch engineers are experienced in reclaiming land from the sea. |
| B．The islands are being built in the shallow water of the sea. |
| C．All the luxury homes on Palm Jumeirah were sold. |
| D．The World Islands are bigger than the Palm Jumeriah. |
The underlined word “facilitates” in the second paragraph probably means___________.
| A．holds back | B．makes easier |
| C．slows down | D．leads to |
What is the passage written for?
| A．To introduce the wonderful artificial islands. |
| B．To show how to build artificial islands. |
| C．To offer a travel service for tourists. |
| D．To prove the Palm Islands are the largest artificial islands in the world. |
In the Caucasus (高加索) region of Russia, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many don’t stop at 100! By comparison, in America only 3 people in 100,000 reach 100. But these Russian old people aren’t alone. The Pakistanis, who live high in the Himalaya Mountains, and the Ecuadorans (厄瓜多尔人) of the Andes Mountains seem to share the secret of long life, too.
These people remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their 60s and 70s, some Caucasians aged 100 to 140, work in the fields beside their great-great-grandchildren. Even the idea of aging is foreign to them. When asked “at what age does youth end?” most of these old people had no answer. Several replied, “Well, perhaps at age 80.”
What accounts for (解释) this ability to survive to such old age, and to survive so well? First of all, hard physical work is a way of life for all of these long-living people. They begin their long days of physical labor as children and never seem to stop. For example, Mr. Rustam Mamedov is 142 years of age. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intention of retiring from his life as a farmer. “Why? What else would I do?” he asks. All these people get healthful rewards from the environment in which they work. They all come from mountainous regions. They live and work at elevations (海拔) of 1,660 to 1,000 meters above sea level. The air has less oxygen and is pollution-free. This reduced-oxygen environment makes the heart and blood vessel (血管) system stronger.
Another factor that may contribute to the good health of these people is their isolation. To a great extent (程度), they are separated from the pressures and worries of industrial society. Inherited (遗传) factors also play some role. Most of the longest-living people had parents and grandparents who also reached very old ages. Good family genes may, therefore, be one factor in living longer.The example of Mr. and Mrs. Mamedov implies that some Caucasians aged 100 to 140 _________.
| A．become weak and hopeless |
| B．benefit from physical work |
| C．are too old to work in the fields |
| D．are still working in the fields |
What is the main way of life for all of these long-living people?
| A．Retiring from their lives as farmers. |
| B．Having been married for 90 years. |
| C．Hard physical work. |
| D．Having no intentions. |
Which of the following factors is NOT helpful to people’s health and long life?
| A．Clean mountain air. | B．Daily hard work. |
| C．Good genes | D．Stress and pressure. |
What does the underlined word “isolation” mean?
| A．the state of being separated | B．pressure |
| C．lack of physical labour | D．worry |
What is the main idea of the passage?
| A．Russian people live longer than Americans |
| B．People in the city live longer than those in the country |
| C．The reason why mountainous people live longer |
| D．Pressures and worries contribute to long life |
In China, if you are not married by the time you are 30, you are in for trouble: social blame and pressure from family and friends can get you down. And if you are a woman, it’s even worse.
Many young people get married simply to get other people off their backs (免受别人的指责) . This is a serious compromise. One ends up not marrying the ideal partner.
There are, however, a few young people who refuse to compromise: if they can’t find a good marriage partner, they say, they would rather not marry at all.
34-year-old Kate is a university lecturer in English. She said she would not describe herself as celibatarian (独身主义者) but simply a woman who hasn’t come across the right man yet. She has sharp comments for the way in which the old generation looks at marriage.
“Many people think marriage is a duty---to your parents, family and society. Nobody cares if your marriage is happy or not, she said, I think this is very wrong and I intend to live and act according to my own will.”
Happily for her, her parents are open-minded and not lay stress on her. But the same does not apply to her friends. They are constantly trying to get her together with some young man or another. She always refuses politely.The main idea of this passage is that _________.
| A．marriage is a duty to society |
| B．people should get married before 30 years old |
| C．late marriage should be respected |
| D．women should get married earlier than men |
Miss Kate refuses to get together with some young man or another because __________.
| A．she doesn’t think he is the right man she wants |
| B．he is either too old or too young |
| C．he is either important or little learned |
| D．he doesn’t have good manners |
In the first paragraph the underlined words “in for” refer to _________.
| A．interested in | B．satisfied with |
| C．worried about | D．likely to suffer |
Which is NOT TRUE according to this passage?
| A．In China, one may face social blame and family pressure if one hasn’t got married by 30. |
| B．Miss Kate’s parents are always worried about her marriage. |
| C．Miss Kate won’t compromise if she can’t have her ideal marriage. |
| D．Miss Kate wants to marry a worthy young man. |
If marriage is regarded as a duty to society, __________.
| A．everybody will be happy and satisfied |
| B．nobody will pay attention to whether you are happy or not in your family life |
| C．you can easily find an ideal partner |
| D．young people will have nothing to worry about in marriage |