I'm taking a test and have to guess the right answer to the question after the article. Article: In the 1960s Professor Bolin predicted that the "greenhouse effect", caused by an increase in the amount of carbon dioxide (CO2) in the atmosphere, would lead to important changes in the Earth's climate. At the time his prediction were regarded as science fiction. But it is now gradually agreed that the amount of carbon dioxide in the atmosphere will double from 0.03% to 0.06% in the next 50 years and that temperatures worldwide will rise by 2degC. Although a temperature rise of 2deg may not seem significant, the local effects may be much greater: in polar regions a rise of 10deg by 2025 is expected and in Northern Europe a rise of 4deg. Indeed the first effects were expected to be felt before the end of the 20th century. But how does the "greenhouse effect" _ and why should such a tiny proportion of CO2have such a harmful effect? When living creatures breathe out or when things are burned, CO2enters the atmosphere. Until recently all of this was absorbed by plants, which converted it back into oxygen. However, the balance of nature has been disturbed. In power stations, in factories and in our cars, we are burning more and more fossil fuels (coal, oil and natural gas) and this produces huge quantities of CO2--18 billion tons of it enter the atmosphere every year. Added to this, the destruction of forests means that less CO2can be converted into oxygen by plants. So, the amount of CO2in the atmosphere is increasing every year. Question: Which of the following statements is true according to the passage? Options: A: Only a small portion of the atmosphere consists of carbon dioxide. B: Professor Bolin's predictions were taken seriously in the first place. C: No changes in climate will become noticeable for 50 years or more. D: The rise in temperature will probably be 2 degrees in every part of the world.
A
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Daniel stays home on workdays.He starts his personal computer in order to connect with the office which is about three hundred miles away in another city.After work, he puts on his headphones, watches a movie on his home video recorder, or plays baseball on the computer.On many days, Daniel doesn't talk to any other human beings, and he doesn't see any people except the ones on television.Daniel is imaginary, but his lifestyle is very possible.The inventions of modern technology seem to be cutting us off from contact with our fellow human beings. The world of business is one area in which technology is separating us.Experts say, for example, that many people will soon be able to work at home.With access to a large central computer, employees such as office clerks, insurance agents, and accountants could do their jobs at display terminals in their own homes.They would never have to actually see the people they're dealing with.In addition, the way employees are paid will change.Workers' salaries will be automatically paid into their bank accounts, making paper checks unnecessary.No workers will stand in line to receive their pay or cash their checks.Personal banking will change, too.Customers will deal with machines to put in or take out money from their accounts.Many companies and consumers have already changed the way they sell or buy products.E-commerce, or business done on the Internet, is becoming more and more popular.This, therefore, makes it possible for people to do shopping without going out of their homes. Another area that technology is changing is entertainment.Music, for example, was once a group experience.People listened to music at concert halls or in small social gatherings.For many people now, however, music is an individual experience.Walking along the street or sitting in their living-rooms, they wear headphones to build a wall of music around them.Movie entertainment is changing as well.Movies used to be social events.Now, fewer people are going out to see a movie.Many more are choosing... Question: What is the main idea of the passage? Options: A: We may no longer need to communicate wit other human beings. B: Modern technology seems to be separating human beings. C: We may no longer need to work in the office. D: Modern technology makes it possible for us to work and entertain ourselves at home.
(Answer)
B
Question: I'm taking a test and have to guess the right answer to the question after the article. Article: Lying in the sun on a rock , the cougar saw Jeb and his son Tom before they saw it . Jeb put his bag down quickly and pulled his jacket open with both hands , making himself look big to the cougar . It worked . The cougar hesitated , ready to attack Jeb , but ready to forget the whole thing , too . Jeb let go of his jacket , grasped Tom and held him across his body , making a cross . Now the cougar's enemy looked even bigger , and it rose up , ready to move away , but unfortunately Tom got scared and struggled free of Jeb . " Tom , no ! " shouted his father . But Tom broke and ran and that's the last thing you do with a cougar . The second Tom broke free , Jeb threw himself on the cougar , just as it jumped from the rock . They hit each other in mid-air and both fell . The cougar was on Jeb in a flash , leaving Tom alone , which was what Jeb wanted . Cougars are not as big as most people think and a determined man stands a chance , even with just his fists . As the cougar's claws got into his left shoulder , Jeb swung his fist at its eyes and hit hard . The animal howled and put its head back . Jeb followed up with his other fist . Then out of the corner of his eye , Jeb saw Tom . The boy was running back to help his father . " knife , Tom , " shouted Jeb . The boy ran to his father's bag , while Jeb started shouting as well as hitting , to keep the cougar's attention away from Tom . Tom got the knife and ran over to Jeb . The cougar was moving its head in and out , trying to find a way through the wall Jeb was making out of his arms . Tom swung with the knife , into the cougar's back . It howled horribly and ran off into the mountains . The whole fight had taken about thirty seconds . Question: Why did Jeb pull his jacket open when he saw the cougar ? Options: A: To get ready to fight . B: To protect his son . C: To calm himself down . D: To frighten it away .
Answer:
D