If you are a traditional traveller who believes cameras are irreplaceable.here are some things you should pay attention to when looking for the perfect camera.Sensor sizeAlong with the megapixel count 题目和参考答案——青夏教育精英家教网—

题目内容

If you are a traditional traveller who believes cameras are irreplaceable，here are some things you should pay attention to when looking for the perfect camera.

Sensor size

Along with the megapixel (百万像素) count，the size of the sensor dictates the general image quality as well as the camera's performance in low light. It also determines whether the camera can electronically put the details it captures bigger enough to see—which is what makes the pictures not clear enough to see when you view the photos on a bigger screen.

Portability

“The important thing is that the camera isn't too big or heavy，and that you have a good zoom (变焦距镜头) range for both wide－angle and telephoto shots (远距摄影照片)，”Atherton told CNN.A good choice would be a slim，light pocket camera with a high－qualified built－in optical zoom. “These are very popular for travel as they are light，but built with a telephoto lens that can zoom up to 60 times，” Atherton said.

Zoom and shutter (快门) speed

For action or crowd shots，a fast shutter speed is a key factor. “When dealing with anything that's active—wildlife or people in action on the street—faces change within a tiny part of a second，” said Arnold，“a fast shutter speed is helpful in shooting the several hundred photos you might need to get that single winning shot.”

1. According to Atherton，what isn't a requirement for an ideal camera?

A．Portable shape.

B．Wide－ranged zoom.

C．Good telephoto lens.

D．Reasonable sensor size.

2.What will contribute to a satisfactory photo of a running lion in the wild?

A．The sensor size. B．The zoom range.

C．The shutter speed. D．The megapixel.

3.Which of the following can be the best title of the passage?

A．How to choose ideal travel cameras?

B．How to put a camera into good use?

C．A fashionable camera—up for sale

D．A high－quality camera—a modern life's must

练习册系列答案

相关题目

—Would you like to have some ice-cream?

—I’d like to, but I'm on a diet ________ weight.

A. loseB. to loseC. being lostD. lost

Computers have beaten human world champions at chess and, earlier this year, the board game Go. So far, though, they have struggled at the card table. So we challenged one AI to a game.

Why is poker(扑克) so difficult? Chess and Go are “information complete” games where all players can see all the relevant information. In poker, other players’ cards are hidden, making it an “information incomplete” game. Players have to guess opponents’ hands from their actions—tricky for computers. Poker has become a new benchmark for AI research. Solving poker could lead to many breakthroughs, from cyber security to driverless cars.

Scientists believe it is only a matter of time before AI once again vanquishes humans, hence our human-machine match comes up in a game of Texas Hold’s Em Limit Poker. The AI was developed by Johannes Heinrich, researcher studying machine learning at UCL. It combines two techniques: neural(神经的) networks and reinforcement learning(强化学习).

Neural networks, to some degree, copy the structure of human brains: their processors are highly interconnected and work at the same time to solve problems. They are good at spotting patterns in huge amounts of data. Reinforcement learning is when a machine, given a task, carries it out, learning from mistakes it makes. In this case, it means playing poker against itself billions of times to get better.

Mr Heinrich told Sky News: “Today we are presenting a new procedure that has learned in a different way, more similar to how humans learn. In particular, it is able to learn abstract patterns, represented by its neural network, which allow it to deal with new and unseen situations.”

After two hours of quite defensive play, from the computer at least, we called it a draw.

1.Why can’t the computer beat humans at the poker game?

A. Because humans are cleverer than the computer.

B. Because humans practice playing the poker game every day.

C. Because the computer can’t learn the regular rules of the poker game.

D. Because the computer can’t know the other players’ cards completely.

2.What does the underlined word “vanquishes” in Paragraph 3 mean?

A. Leaves.B. Defeats.C. Cheats.D. Serves.

3.What do we know about the reinforcement learning of AI?

A. It solves problems correctly every time.

B. It is the same as the learning of humans.

C. It learns from the mistakes appearing in a task.

D. It is more developed than the studying ways of humans.

4.What can be inferred from the text?

A. The new procedure of AI has some features of humans.

B. Computers are stronger than humans in every aspect.

C. Humans will beat computers at playing poker forever.

D. Scientists feel unhappy about the result of the poker game.

JOHANNESBURG—They say cats have nine lives. Now a Chinese toad(蟾蜍) has joined that club of clever survivors.

South Africans are shocked at the endurance of a toad that got trapped in a cargo shipment from China to Cape Town, after jumping into a porcelain candlestick(烛台) that was made there. South African officials reportedly planned to put down the creature, fearing it would cause harm as an invasive species if it were let go in the wild.

But the toad got a last-minute pardon. Mango Airlines, a South African airline, transported the toad on Friday to Johannesburg for delivery to an animal shelter, after officials decided to find a way to let the toad live. The two-hour flight was a breeze compared to the trip from China, a long way of many weeks and thousands of kilometers across the Indian Ocean.

Airline spokesman Hein Kaiser said the toad got “first-class treatment”, sitting in a transparent plastic container with escort Brett Glasby, an animal welfare inspector. There was even a ceremony, in which the toad’s boarding pass was handed to Glasby.

“He was the star of the show on the flight,” Kaiser said of the amphibious(两栖的) passenger. “I think every passenger stopped to have a look.”

On landing in Johannesburg, the toad was brought out of its container for a celebrity-style photo shoot. Observers said the brown toad seemed like a cool customer. It belongs to the Asian Toad species, which breeds during the monsoon(季风) season. It is believed to have survived the trip from China by hardening its skin to prevent it from drying out, and also by slowing its breathing and heart rate—methods that help the species survive in times of drought.

“We’ve had snakes in imported timber and scorpions(蝎子) in fruit. We were called because the toad was right inside the candlestick, and we had to break it to get it out” Glasby, the inspector, told The Star, a South African newspaper.

1.What is the passage mainly about?

A. Asian toads can’t get used to the life in South Africa.

B. South Africa ignores the protection of animals.

C. An Asian toad gets a new home in South Africa.

D. Workers shipped a toad to South Africa on purpose.

2.If the toad is released into the wild, ________.

A. it will make the locals feel shocked

B. it will lose its life in the wild

C. it might flee into another country

D. it might harm the native species

3.The toad was able to arrive in South Africa alive ________.

A. because it formed hard skin to protect itself

B. because it escaped all attacks and hunts

C. because it used to stop its breath in winter

D. because it was lucky to be given a chance

4.It can be inferred from the passage that ________.

A. a candlestick is the best place for a toad

B. droughts make toads live longer

C. sometimes animals are transported accidentally

D. no one has seen such a big toad in Africa

阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。

On keeping a Diary in English

Keeping a diary in English is one of the 1.__ __ (effect) ways to improve our English writing ability.

2._____ (compare) with other forms of writing, it is shorter and takes 3.____ time. It can help us to develop the habit of thinking in English. 4._____ we persist in this practice, gradually we’ll learn how to express ourselves in English. In keeping a diary in English, we certainly run up against many 5.__ __（difficult）. In the first place, 6.___ often happens that we have trouble 7._______(find) appropriate words and phrases to give expression to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And it is extremely hard for us to put them into English properly.

As far as I 8._ __ (concern), my suggestion is that we should always have a notebook and a Chinese-English dictionary within easy reach. Whenever something beats us, we can first put it down in our notebook and then consult our dictionary. We can also turn to our English teacher for help, if necessary. In short, I believe that it is 9._____ great use to keep a diary in English for 10._____ development of our writing skills.

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Also 1.(know) as “paper paintings” and “painted pictures”, New Year paintings are 2. unique art form in Chinese folk culture. The paintings are called “New Year paintings” because they are 3.(most) posted during the Chinese New Year holiday 4. decoration and they are also a symbol of New Year’s greetings.

New Year paintings 5. (appear) around the Tang dynasty, replacing the previous door pictures 6. (feature) the gods believed to be able to protect the residents and drive away ghosts. In the Song dynasty, New Year paintings were created on a large scale. With the advancement of printing technology, the content and forms of New Year paintings became 7.(diversity). The development of the paintings matured in the Ming and Qing dynasties, 8.the art hit its heyday(全盛期).

Traditional printing 9.(method) of New Year paintings include woodlock printing, stone-block printing, offset (胶印) printing, traditional Chinese painting, watercolor painting and sketches etc. Woodblock printed New Year paintings 10.(be) the most popular and interesting ones.

下周四下午你校将组织一次英语角活动,主题是“The Most Important Invention”,请用英语写一篇发言稿,内容如下;

1.你认为最重要的发明是手机；

2.阐明你的理由。

注意:1.词数100左右；

2.可以适当增加细节,以使行文连贯；

3.开头已为你写好,不计入总词数。

It is known that there are a lot of inventions in history.

第二节根据短文内容，从短文后选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Much meaning can be conveyed clearly with our eyes, so it is often said that eyes can speak.

__ 36In a bus you may look at a stranger, but not for too long. And if he sensed that you are staring at him, he may feel uncomfortable.

The same is true in our daily life. If you are stared at for more than necessary, you will look at yourself up and down to see if there is anything wrong with you.37. Eyes do speak, right？

Looking too long at someone may seem to be rude and aggressive.38. If a man stares at a woman for more than 10 seconds and refuses to look away from her, his intentions are obvious. He wishes to attract her attention, and let her know that he is admiring her.

However, when two persons are engaged in a conversation, the speaker will only look into the listener’s eyes from time to time to make sure that the listener does pay attention to what the former is speaking. 39 If a speaker looks at you continuously when speaking as if he trying to control you, you will feel awkward. A poor liar usually expose s himself by looking too long at the victim. He wrongly believes that looking straight in the eye is a sign of honest communication.40

Actually, eye contact should be made based on specific relationship and situation.

A. On the contrary, it will give him away.

B. Do you have such a kind of experience?

C. That’s what normal eye contact is all about.

D. Actually, continuous eye contact is limited to lovers only.

E. After all, everybody likes to be stared at for quite a long time.

F. But things are different when it comes to staring at the opposite sex.

G. If nothing goes wrong, you will feel annoyed at being stared at that way.

短文改错

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1．每处错误及其修改均仅限一词；

2．只允许修改10处，多者(从第11处起)不计分。

While walking in a market two weeks before, I saw a little kid looking for his mom. However, I couldn’t find her. I decided to ignoring it and keep walking, but then I saw a person that seemed to have badly intentions. So I made up my mind to help with the little kid. We go from one shop to another to look for his mom. Eventually we entered a flower shop but found her, after nearly one and a half hour of searching. She thanked me for helping her child, which was only 6 years old. It was very happy moment.

试题分类