题目内容
Soon computers and other machines will be able to remember you by looking at your eyes! The program works because everyone’s eyes are different. So in the future you won’t have to remember a number when you want to use a machine or take money out of a bank. You’ll just have to look at the machine and it will be able to tell who you are.
The eye-recognition（眼睛识别 program has already been tested in shops and banks in the USA, Britain, Spain, Italy and Turkey. Soon this technology（技术） will take the place of all other ways of finding out who people are.
However, scientists are also working on other systems. Machines will soon be able to know you from the shape of your face or hand or even your smell! We already have machines that can tell who you are from your voice or the mark made by your finger.
Eye-recognition is better than other kinds because your eyes don’t change as you get older, and don’t get dirty like hands or fingers, and even twins have different eyes. So the eye-recognition program can be up to 94% correct, depending on how good the technology is. However, some other programs may only be 51% correct at present. In Britain, it was found that 91% of people who had tried it said that they liked the idea of eye-recognition.
In the future your computer will be looking you in the eye. So smile!
【小题1】Where has the eye-recognition program already been tested in a few countries? In_______.
| A．shops and banks | B．shops and schools |
| C．banks and schools | D．schools and hospitals |
| A．You look at the machine and type a number. |
| B．You need to speak and then look. |
| C．The machine looks at your face. |
| D．You look at the machine. |
| A．your eyes or your smell |
| B．your voice or the mark made by your finger |
| C．your face or your voice |
| D．your face or your hand |
| A．Your eyes don’t change as you get older. |
| B．Eyes don’t get dirty like hands or fingers. |
| C．Everyone’s eyes are different, even twins have different eyes. |
| D．We can’t see anything without eyes. |
| A．Some eyes are the same. | B．Eyes can change. |
| C．It is not always correct. | D．Eyes can get dirty like hands. |
【小题1】A
【小题2】D
【小题3】B
【小题4】D
【小题5】C
解析试题分析：
【小题1】本文第二段第一句为The eye-recognition（眼睛识别 program has already been tested in shops and banks in the USA, Britain, Spain, Italy and Turkey，意思为眼睛识别程序已经在欧美一些国家的商店和银行被测试，故本题选A。
【小题2】本文第一段最后一句是You’ll just have to look at the machine and it will be able to tell who you are.意思为你只要看着机器，机器就能辨别你的身份，也就是说你只需要看着眼睛识别器，他就能工作和运转，故本题选D。
【小题3】本文第三段We already have machines that can tell who you are from your voice or the mark made by your finger.意思为我们已经有了机器能够根据你的嗓音或者是你的指纹而辨别你的身份，故本题选B。
【小题4】本文第四段的内容为眼睛识别的好处，主要有人的岁数大了，但眼睛不会变，眼睛不会像手或手指那样容易变脏，每个人的眼睛都是不同的，双胞胎也有不同的眼睛，故本题的D项不是眼睛识别的好处，故本题选D。
【小题5】本文的第四段提到眼睛识别系统的准确性为百分之91，所以它的问题是不完全准确，故本题选C。
考点：本文是一篇主要谈论眼睛识别程序的说明文。
点评：本文介绍了识别人的多种方式，有眼睛识别，声音，脸型或指纹识别等，主要介绍了眼睛识别程序，谈论了它的测试，优点和不足。阅读本文时，我们应该以眼睛识别的优缺点为中心通读全篇，理解本文的主要内容。
名校课堂系列答案Can you imagine astronauts' everyday life in space? They also need to eat, sleep, exercise and relax. They do the same things as us, but they do them differently.
On Earth, we put food on a plate. Gravity holds the food down and keeps it on a place. But there is almost no gravity in space, so food can float （漂浮）away, and astronauts must eat carefully.
Sleeping is very different in space. Some astronauts like to float in the air, but most like to be in a sleeping bag. They tie the bag to a wall so that they won't float away at night.
Exercise is very important in space. On Earth, your legs carry your body, but in space, astronauts float, so they do not use their legs often. This is very bad for their legs, so they must exercise for thirty minutes every day.
After a day's work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families on the radio. Sometimes they just enjoy floating in the air.
【小题1】What does the underlined word "gravity" mean in Chinese?
| A．平衡 | B．引力 | C．磁性 | D．重力 |
| A．Because in that way they won't float away. |
| B．Because that makes them sleep well. |
| C．Because they can't get to sleep if they don't do that. |
| D．Because the sleeping bag is not safe enough. |
| A．It is about the importance of gravity. |
| B．It is about astronauts' everyday life in space. |
| C．It is about the differences between space and Earth. |
| D．It is about how to avoid （避免） floating away while sleeping. |
New York City is a very large city with 8 million people. How do so many people move on their way to work and school?
In New York you can travel by subways, bus, taxi and private (私人的) car. The subway runs on the railroad lines under the city. It crosses the city at different points and goes to all parts of the city. Travelling by subway is the fastest way to get around the city.
The second way to travel is by bus. It is a slower way to travel.
You can also travel by taxi. This is very expensive, but the taxi will take you to every place you want to go to. If traffic is heavy, the taxi will be slow. During the mornings and afternoons, there is the “rush hour”. This is the time when the traffic is very heavy with people going to and from work..
The last way is to use your private car. It’s not good to drive during the “rush hour”. If there is an accident on the road, you will have to wait for a long time.
The best time to travel is from 9 a.m to 4.pm . Traffic will be less crowded during this time because most people are already at school or at work at that time.
【小题1】How many ways of travelling are mentioned (提到) in the passage?
| A．Two | B．Three | C．Four | D．Five |
| A．高峰时间. | B．匆忙时间 | C．冲刺时间 | D．繁忙时间 |
| A．by bus | B．by subway | C．by taxi | D．by private car |
| A．there is no “rush hour” from 9.am to 4 p.m. |
| B．traffic is heavy at noon. |
| C．most Americans have lunch at home. |
| D．people go to work and school at 9:00. |
| A．Because New York City is a modern city. |
| B．Because New York City is a very large city. |
| C．Because New York City is new. |
| D．Because the people in New York City are very busy. |
阅读下面的短文，根据短文内容完成表格中所缺信息，每空一词。
There was a big drought(干旱) in southwest China in May, 2010. Most places got less rain than usual in Guangxi, Sichuan, Guizhou, Yunnan and Chongqing. People do not have enough water to live. Crops(庄稼) die before the harvest(收获).
People from other places in China are giving help. Kids in different places give them water and money. Students at Yingcai Primary School in Haikou donate 2,512 bottles of water.
Li Jiahang is a 2nd grade student at Huang Cheng Gen Primary School in Beijing. “There are 47 students in my class. We give our pocket money. We hope we can help the kids to drink clean water and buy things they need.”
In China, there are 669 cities. But more than 400 cities are in great need of water. Water is important in our life. Everyone has the duty to save water in our everyday lives. I believe if everyone makes a little effort, we can make a big difference.
| Title | 1 Is in Great Need |
| Problems | * There is 2 rain than usual in southwest China. |
| * There isn’t 3 water for people to live. | |
| * Crops 4 before harvest. | |
| Actions | * People 5 6 China are giving help. |
| * Students 7 them water and money. | |
| Lessons | * It’s 8 for us to save water in our 9 lives. |
| * Everyone does his best, and we’ll make a big 10 . |
B
Sun Liping, 6 , lives in a small village in Yunnan. Her biggest wish is to have running water in her home. All 35 families in Sun’s village have a serious problem--- they don’t have enough water. Every day, the villagers have to walk 20 minutes to get water.
Last year, the worst drought since the 1950s hit Yunnan, making more than 2 million people short of drinking water. This year, the drought is even worse.
Not only Yunnan, but many other provinces in China are short of water as well, such as Gansu and Qinghai.
According to a report on February 17, each Chinese person has about 28% of the world’s average（平均的） person’s amount of available(可用的) water. Two thirds of China’s cities are short of water and nearly 300 million people in rural areas don’t have safe water for drinking.
Every drop of water is important. Waste a drop of water a day and you lose a bucket(桶) a year. How can we use water in a smart way? Here are some tips for you to save water in your daily life:
1. Put plastic bottles of water in your toilet to cut down the water waste when you flush (冲洗) your toilet.
2. Don’t keep the water running while you’re brushing your teeth or washing your face and hands.
3. Use low-flow(低流量) shower heads .
4. Use a bucket to collect shower water while you wait for it to warm up.
5. Make your shower time shorter.
6. Set up a rain bucket to collect rainwater for watering plants or flowers.
【小题1】 What is the problem in Sun’s village?
| A．They don’t have enough food. |
| B．They don’t have enough water. |
| C．They have to walk far away to go to school. |
| D．There are fewer and fewer villagers. |
| A．饥饿 | B．干旱 | C．水灾 | D．贫穷 |
A. China has just 28 percent of the world’s available water.
Each Chinese person can use more water than the world’s average person.
There is not enough water in two thirds of China’s cities.
D. There are about 300 million people in China’s cities who don’t have enough water.
【小题4】Which of the following would lead to a waste of water?
| A．Using low-flow shower heads. |
| B．Collecting shower water while waiting for it to warm up. |
| C．Taking a quick shower. |
| D．Keeping the water running while brushing one’s teeth. |
Put an ice cube from your fridge into a glass of water. You have a piece of string(线) 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers.
You may ask your friends to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment.
First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt(融化). The ice round the string will begin to melt. But when it melts, it will lose heat. The cold ice cube will make the salt water freeze(结冰) again.
After a minute or two you may raise the piece of string and with it you will raise your piece of ice!
This experiment can be very useful to you. If, for example, there is ice near the door of your house, you must use very much salt to melt all the ice. If you don’t put enough salt, the water will freeze again.
【小题1】We must use when we carry out this experiment.
| A．a fridge | B．some food | C．a table | D．some salt |
| A．More than three minutes. | B．Five minutes or two. |
| C．Only one minute or two. | D．About ten minutes. |
| A．physics | B．biology | C．chemistry | D．maths |
Lions are big and strong.They have bright eyes, sharp teeth and black points on their brown bodies.So they look beautiful.
Lions can run fast.They are good at catching other animals.Lions like living as a family until baby lions are 2 years old.A lion lives alone during most of its life.
Now, many hunters hurt lions for their fur and meat.They sell their meat to people for meals.They use their fur to make clothes and bags.We must stop this.It is wrong for people to kill lions.We can write to newspapers about the danger the lions are facing.We should tell the government and people about the problems.If we do nothing, soon there will be no lions in the world any more!
【小题1】What are lions like?
| A．Big and strong | B．Big and light |
| C．Black and white | D．Bright and Slim. |
| A．Black | B．Brown | C．Blue | D．White |
| A．20 years old | B．12 years old |
| C．2 years old | D．22 years old |
| A．Fur | B．Fur and leather bags |
| C．Fur and meat | D．Leather bags and bones |
| A．Write to newspapers. | B．Tell people about the problems. |
| C．Do a lion count once a year. | D．Ask the government to help. |
A man made a nice talking machine .It could weigh people’s weight .The man wanted to try the machine before he could make a lot of machines.
He put the machine into the waiting room of a station .There were always lots of people in and out .
The first one who used the machine was an Indian woman. She stood on the machine, the machine thought for a few seconds to decide which language to speak ,“Good morning ,Madam .”it said in Indian . “Your weight is 72 kilograms .That’s three kilograms more .If you eat more fruit and vegetables ,you will be soon all right .Please have a nice day .”
The second one to use the machine was a Chinese girl .She stood on the machine and waited to hear her weight. “Good morning ,Miss .”the machine said in Chinese. “Your weight is 45 kilograms .It’s all right for your age. Keep eating what you eat every day .Please have a nice day .”
The third one to use the machine was a very fat American woman .She thought for a long time to stand on the machine .The machine spoke quickly in English , “Good morning .Will one of you get off?”
【小题1】The machine in this passage could .
| A．weigh and talk to people |
| B．tell people what they should eat |
| C．speak all kinds of languages |
| D．make people laugh |
| A．72 kilograms. | B．69 kilograms |
| C．75 kilograms. | D．45 kilograms. |
| A．should eat more | B．should eat less |
| C．had to eat more fruit | D．kept herself healthy |
| A．She was healthy. |
| B．She liked thinking. |
| C．She was too heavy. |
| D．The machine didn’t like her. |
Because earthquakes happen without warning, it’s important to take steps now to prepare. Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace, and car.
1. Water.
A person needs at least 1/2 gallon of water daily just for drinking. Store at least1 gallon of water per person per day and be prepared for a 72-hour period. It’s suggested that you buy bottled water. Keep bottled water in its original container and do not open it until you need to use it. Also, do check the “use by” date.
2. Food.
It’s always a practical idea to keep a supply of non-perishable(不易腐烂的) food on hand. Have an enough supply of canned food, dried milk, dried fruits, non-salted nuts and canned juices for at least 72 hours.
3. Flashlights and spare batteries.
Keep a flashlight beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure that no gas leaks.
Prepare a battery –powered radio and spare batteries. Most telephones will be out of order, so radios will be your best source of information.
4. Clothes.
If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.
【小题1】You should prepare all of the following except _______________.
| A．canned juices |
| B．dried fruits |
| C．fresh vegetables |
| D．dried milk |
| A．some warm clothes and bedding supplies |
| B．some hot water |
| C．some batteries |
| D．some flashlights |
| A．clothes are used to protect your head |
| B．a telephone is the most important prepared thing |
| C．flashlights but not matches are first used after earthquakes |
| D．we need to prepare some supplies only at home |