The vast jungles of the Amazon rainforest are home to tribes(部落)mostly isolated(隔绝的)from the outside world，whose way of life，largely unchanged for hundreds of years，is now increasingly threatened by modern civilization．
Now, scientists discover they can monitor these“uncontacted tribes”using satellites，which would allow inexpensive and safe tracking of these tribes in order to protect them from outside threats．
In order to help conserve these uncontacted Indians，researchers need accurate estimates of their populations．One way to collect this data involves flying over their villages，but such overflights are both expensive and could fill these native peoples with fear．Another strategy involves meeting individuals on the ground，but among other risks，scientists could accidentally spread disease to members of the tribes．
Instead，scientists investigated whether satellite imaging could monitor uncontacted tribes. The result was inspiring．They confirmed their locations and measured the sizes of their Village，houses and gardens．“We can find isolated vinages with remote sensing and study them over time．”Walker told Live Science．“We can ask：Are they growing?Do they move?”
Surprisingly，based on the sizes of the houses and Villages，the scientists find the population densities of these isolated villages are about 10 times greater，on average，than other villages of native Brazilian peoples．This may be due to the fact that they have to live closer together because they are not as good at clearing the forest，since they lack modern devices like chainsaws and tractors，the researchers said．The tribes may also be afraid of spreading out due to fear of being attacked by outsiders，Walker said.
The researchers now plan to focus on 29 more isolated villages to“look at their ecology—that is．distance from rivers and roads—and use this to model where else we can find more isolated villages，”Walker said．What is the main idea of the text?
| A．Amazon tribes are disappearing． |
| B．Scientists found isolated Amazon tribes． |
| C．Modern civilization is threatening Amazon tribes． |
| D．Isolated Amazon tribes are monitored with satellites． |
Scientists don't want to meet the Indians on the ground due to the fear that_______
| A．they can’t get accurate data |
| B．they will be attacked by the Indians |
| C．they could pass disease to the Indians |
| D．they will catch disease from the Indians |
What do scientists find about the tribes?
| A．They live close together． |
| B．Their population is dropping. |
| C．Thev live in distributed areas． |
| D．Their population is increasing fast. |
What can be inferred from the last paragraph?
| A．There are 29 Amazon tribes in total． |
| B．More isolated tribes are yet to be discovered． |
| C．It's easy for scientists to find isolated villages． |
| D．Isolated villages are distant from rivers and roads． |
A couple had a son eleven years after they married. They were a loving couple and the boy was the apple of their eye. When the boy was around four years old, one day the father was very tired after work so he asked his wife to pick up their son. The mother, who was very busy in the kitchen, totally forgot about it.
Later the boy lost his way on the street. When the son was found missing, the mother hurried to look for him, but she didn’t find him. The mother felt very sad and didn’t know how to face her husband.
When the father went to the police station after hearing that the son was missing, he looked at his wife and said just four words. What do you think the four words were? The husband just said "I love you, darling."
The son was missing. If she had picked him up earlier, this would not have happened. There is no point in blaming (责备) anyone. His wife had also lost her only child. What his wife needed at that moment was comfort and understanding from her husband. That is what the husband gave his wife. Several weeks later, with the help of the police, the couple finally found their lost son. The family’s relationship became stronger over that time.
Sometimes we spend lots of time asking who is to blame. We miss many chances to give each other support and let each other feel the warmth of human relationships. Get rid of all your unwillingness to forgive, selfishness, and fears and you will find the world is much more wonderful.What is the meaning of the underlined phrase “the apple of their eye”?
| A．A person who always has a sweet smile in their opinion. |
| B．A person who is as pretty as an apple in their opinion. |
| C．A person who is loved more than anyone else in their opinion. |
| D．A person who looks like an apple in their opinion. |
Why didn’t the father pick the boy up himself?
| A．He was very lazy. |
| B．He thought the mother had picked him up. |
| C．He forgot to pick him up. |
| D．He was too tired to do it. |
What can we learn from this passage?
| A．Be careful in everything you do. |
| B．Love is the most important thing. |
| C．Learn to forgive others. |
| D．Everyone can make mistakes. |
What do you think of the husband?
| A．Warm-hearted. | B．Careful. |
| C．Hard-working. | D．Broad-minded. |
It was Saturday when the entire summer world was bright and fresh. Tom looked at the fence, which was long and high, feeling all enthusiasm leaving him. He dipped his brush into the whitewash before moving it along the top board of the fence. He knew other boys would arrive soon with all minds of interesting plans for this day. As walking past him, they would tease him for having to work on a beautiful Saturday—which burnt him like fire.
He, putting his hands into his pockets and taking out all he owned with the expectation of letting someone paint, found nothing that could buy half an hour of freedom. At this dark and hopeless moment, a wonderful idea occurred to him, pouring a great bright light into his mind. He took up his brush and continued to work pleasantly with calm and quietness.
Presently, Ben Rogers came in sight—munching an apple and making joyful noises like the sound of a riverboat as he walked along. Tom went on whitewashing, paying no attention to the steamboat. “Hello!” Ben said, “I’m going swimming, but you can’t go, can you?”
No answer. Tom moved his brush gently along the fence and surveyed the result. Ben came nearer. Tom’s mouth watered for Ben’s apple while he kept painting the fence.
Ben said, “That’s a lot of work, isn’t it?”
Tom turned suddenly saying “Here you are! Ben! I didn’t notice you.”
“I’m going swimming,” Ben said. “Don’t you wish you could go? Or would you rather work?” Tom said, “Work? What do you mean ‘work’?”
“Isn’t that work?” Tom continued painting and answered carelessly, “Maybe it is, and maybe it isn’t. All I know is it suits Tom Sawyer.”
“Do you mean that you enjoy it?”
“I don’t see why I oughtn’t to enjoy it.”
“Does a boy have a chance to paint a fence frequently” said Tom.
Ben stopped munching his apple.
Tom moved his brush back and forth—stepped back to note the effect—added a little paint here and there. Ben watched every move, getting more and more interested, more and more absorbed. After a short time, he said, “Tom, let me whitewash a little.”
Tom seemed to be thinking for a moment before he said, “No, Aunt Polly wants this fence to be perfect. If it was the back fence, maybe you could do it. But this fence beside the street is where everybody can see it. It has to be done right.”
“Oh, come on, let me try. I’ll be careful. Listen, Tom. I’ll give you part of my apple if you let me paint.” “No, Ben, I’m afraid—” “I’ll give you all the apple!”
Tom handed the brush to Ben with unwillingness on his face but alacrity in his heart. While the riverboat worked and sweated in the hot sun, Tom, an artist sat in the shade close by, munching his apple, and planning how he could trick more of the boys.
Before long there were enough boys each of whom came along the street; stopped to laugh but soon begged to be allowed to paint. By the middle of the afternoon, Tom had got many treasures while the fence had had three layers of whitewash on it. If he hadn’t run out of whitewash, he would have owned everything belonging to the boys in the village.
Tom said to himself that the world was not so depressing after all. He had discovered a great law of human action: in order to make a man cover a thing, it is only necessary to make the thing difficult to attain.By using “Tom continued painting and answered carelessly”, the author shows Tom ______ when he was talking to Ben.
| A．made mistakes | B．damaged things |
| C．was natural | D．wasn’t concentrating |
The underlined word “alacrity” in the last but two paragraph most probable means “______”.
| A．kindness | B．discouragement |
| C．sympathy | D．eagerness |
Which of the following is TRUE according to the passage? ________
| A．Tom did not want to go swimming at all |
| B．Tom was asked to help Aunt Polly paint the fence |
| C．Tom did not get along well with his friends |
| D．Tom was very busy that Saturday afternoon. |
We can draw a conclusion from the last paragraph that _______.
| A．forbidden fruit is sweet. |
| B．a friend in need is a friend indeed. |
| C．all good things must come to an end. |
| D．a bad excuse is better than none. |
One day my 13-year-old daughter told me that she was going to spend the afternoon at her friend Jesse’s house. I didn’t doubt it until I called Jesse’s number to remind Liz that it was her turn to walk the dog, and Jesse’s mom picked up the phone and said, “I thought she and Jesse were planning to be at your house.” It turned out that the two of them had decided to hang out at a coffee shop instead. When I questioned my daughter, she replied coldly, “What’s the big deal? You’re such a psycho(精神变态者).”
Can you say it is right or wrong for them to behave like that? Their changeable personalities leave you feeling angry and guilty at the same time. In fact, if your kids don’t annoy you from time to time, you’re not doing your job.
“There’s nothing wrong about being angry with your child,” Says Laurence Steinberg, Ph.D., author of The 10 Basic Principles of Good Parenting. “Conflict is natural when your innocent, lovely child turns into an adolescent who can hardly tolerate (忍受) you. It’s part of the process of separation.” Kids insisted on their individuality with behavior to purposely drive you crazy. It’s their way of saying, “I am my own person” -- but doing it in a context that’s safe and that has clear limits.
So when your little darling changes into a silent person who still expects meals, clothing, and transportation, don’t panic. Here’s how to handle some common problems without losing your temper or your self-respect.It can be learned from the first paragraph that ________.
| A．Jesse’s mother told a lie |
| B．the writer was too sensitive |
| C．Liz told a lie to her mother |
| D．the writer’s daughter stayed at Jesse’s house |
By saying “In fact, if your kids don’t annoy you from time to time, you’re not doing your job”, the writer probably means that _________.
| A．when you are doing a job, your kids shouldn’t annoy you |
| B．parents should be responsible for children’s bad behavior |
| C．parents shouldn’t tolerate their children’s bad behavior |
| D．it’s understandable for kids to annoy their parents |
What’s the main idea of the third paragraph?
| A．It’s right for parents to be angry with their children. |
| B．It’s allowed for children to do anything as they like. |
| C．It’s bad behavior for children to drive their parents angry. |
| D．It’s normal for adolescents to go against the wishes of their parents sometimes. |
What would the writer state in the following paragraphs?
| A．How to be good parents. |
| B．How to be good children. |
| C．Rules for children to follow. |
| D．How to deal with adolescents’ common problems properly. |
China’s government has been trying all measures to reduce pollution in the past few years. Now people can enjoy a fresh environment everywhere. The following two graphs are adopted from the column of “City Information” on the webpage of Beijing Review.
Graph 1: Olympic Cities Air Quality Report
| City |
Date |
API |
Major Pollutant |
Air Quality Degree |
Quality Condition |
| Beijing |
Sep. 8 |
37 |
N/A |
Ⅰ |
Very good |
| Qinhuangdao |
Sep. 8 |
52 |
PM10 |
Ⅱ |
Good |
| Qingdao |
Sep. 8 |
68 |
PM10 |
Ⅱ |
Good |
| Shanghai |
Sep. 8 |
67 |
PM10 |
Ⅱ |
Good |
| Shenyang |
Sep. 8 |
88 |
PM10 |
Ⅱ |
Good |
| Tianjin |
Sep. 8 |
54 |
PM10 |
Ⅱ |
Good |
Graph 2: Chinese National Standard
| API Values |
Levels of health concern |
Colors |
| When the API is in this range: |
...air quality conditions are: |
...as symbolized by this color: |
| 0 to 50 |
Very good |
Blue |
| 51 to 100 |
Good |
Green |
| 101 to 150 |
Slight pollution |
Yellow |
| 151 to 200 |
Moderate pollution |
Orange |
| 201 to 250 |
Medium pollution |
Red |
| 251 to 300 |
High pollution |
Purple |
| 301 to 500 |
Hazardous |
Brown |
Notes:
**API stands for Air Pollution Index(指数).
**Particulate matter (PM10) is a major component of air pollution that threatens both our health and our environment. It consists of very small liquid and solid particles floating in the air.
**Sulfur dioxide(SO2) acts as an acid．Inhalation(吸入) results in labored breathing, coughing, or a sore throat and may cause permanent lung damage.According to Graph 1, which of the following cities has the worst air pollution?
| A．Qinhuangdao. | B．Tianjin. |
| C．Qingdao | D．Shenyang. |
If your city is symbolized by either red or purple, the pollution in your city is.
| A．Moderate or high. | B．Moderate or slight. |
| C．Medium or high. | D．Medium or slight. |
Which of the following statements is TURE?
| A．With API value below 150 the air is free from being polluted. |
| B．The colors from purple to Yellow indicate the air quality is becoming much worse. |
| C．When there are floating solid particles and dust in the air, it is dangerous pollution. |
| D．On September 8th the color-symbol of Beijing City’s air quality is ‘Blue’. |
When more citizens are beginning to have labored breathing soon after they are in the open air, it suggests that.
| A．there is a large amount of sulfur dioxide in the air |
| B．it is so cold that they may have caught a cold |
| C．they are starting to cough or have a fever |
| D．they must be infected with permanent lung disease |
How do people traditionally manufacture (制造) things? They usually start with a sheet of metal, wood or other material and cut, drill (钻) and shave it to create a desired shape. Sometimes, they use a mold (模具) made of metal or sand, pour liquid plastic or metal into it and let it cool to create a solid part.
Now, a completely different method is gaining popularity.
On Oct. 9, 2013, London Science Museum kicked off its new exhibition, 3-D: Printing the Future, with over 600 3-D printed objects on display, including space probes (探测器), toy dolls and even human organs – basically any product you can think of, reported Live Science.
You might find it hard to believe that an object can actually be “printed out” like a picture. But it is not that hard to understand how it works. Just as a traditional printer sprays (喷洒) ink onto paper line by line, modern 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.
Instead of ink, the materials the 3-D printer uses are mainly plastic, resin (树脂) and certain metals. The thinner each layer is – from a millimeter to less than the width of a hair – the smoother and finer the object will be. And objects always come out in one piece, sparing you the trouble of putting different parts together afterward.
For example, 10 years ago a desktop 3-D printer might have cost ￡20,000 (200,000 yuan), while now it costs only about ￡1,000, according to the BBC. In fact, 3-D printers have been around for some time, but until recently they hadn’t been very popular since few people could afford them. Last year, though, saw a big decrease in the price of 3-D printers.
However, as 3-D printing technology becomes more commonplace, it may trigger certain problems. One of them is piracy (盗版). “Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3-D printer, who will visit a retail (零售的) store again?” an expert on 3-D printing told Forbes News.
Even more frightening, the world’s first 3-D printed gun was successfully fired in the US in May of this year, which means that 3-D printing could potentially give more people access to weapons.According to the article, in the future, 3-D printing technology will probably ______.
| A．change the way people make products |
| B．be applied as widely in our daily lives as computers |
| C．forbid many countries to make purchases of weapons |
| D．take the place of normal printers and save lots of energy |
What was the big event that happened in the 3-D printing industry last year?
| A．Over 600 3-D printed objects were on display in an exhibition. |
| B．3-D printing technology came to be used in various fields. |
| C．The world’s first 3-D printed gun was successfully made. |
| D．The 3-D printer became more affordable for consumers. |
What is the author’s attitude toward 3-D printing technology?
| A．Amused. | B．Objective. |
| C．Supportive. | D．Negative. |