Read the article and select the best answer. Article: The Red Sea is parting again, but this time no one can help. Satellite pictures show that the Arabian plate and the African plate are moving away from each other, stretching the Earth's crust and widening the southern end of the Red Sea. Last September, series of earthquakes started splitting the planet's surface in Ethiopia. Over a period of three weeks, the sides on the rift separated by 26 feet. "We think that the crust is melted slowly at depths greater than 10 kilometers, where it is hotter, forming molten rock," said Tim J Wright. "This molten rock rises through the crust because it is less dense than the surrounding rock." The molten rock collects at depths of 3 to 5 kilometers. Wright explained, "Slowly, the pressure has been building up until last September when it finally cracked, breaking the crust." The entry of molten rock into the gap between continents, rather than the cracking of the crust, is responsible for separation of continent drifts. For the past 30 million years Africa and Arabia have been going through the continental rifting process, the same one that made the Red Sea part again. "The ground is continually moving---much more rapidly now than before," Wright said. "On average, the two sides move apart at about 2 centimeters per year." This latest split, added to the long-term rifting process could eventually create a huge new sea. Although such processes could take millions of years to occur, this event has given scientists an opportunity to examine the break in real time. Question: According to the passage, what caused Arabia separate from Africa? Options: A: A series of earthquakes. B: Molten rock flowing into the continental gap. C: The cracking of the crust. D: The pressure under the ground.
B

(Question)
Read the article and select the best answer. Article: Many years ago,a French naturalist,the Count de Buffon,wrote some books about natural history.The books were a great success even though some critics did not like them.Some critics said,"Count Buffon is more of a poet than a scientist." Thomas Jefferson did not like what the Count had said about the natural wonders of the New World.It seemed to Jefferson that the Count had spoken of natural wonders in America as if they were unimportant. This troubled Thomas Jefferson.He too was a naturalist,as well as a farmer,inventor,historian,writer and politician.He had seen the natural wonders of Europe.To him,they were no more important than those of the New World. In 1788,Thomas Jefferson wrote about his home state,Virginia.While writing,he thought of its natural beauty and then of the words of the Count de Buffon.At that moment.Jefferson created a new word--belittle.He said."The Count de Buffon believes that nature belittles her productions on this side of the Atlantic." Noah Webster,the American word expert,liked this word.He put it in this English language dictionary in 1806,"Belittle--to make small,unimportant." Americans had already accepted Jefferson's word and started to use it.In 1797,the Independent Chronicle newspaper used the word to describe a politician the paper supported."He is an honorable man,"the paper wrote,"so let the opposition try to belittle him as much as they please." In 1872,a famous American word expert decided that the time had come to kill this word.He said,"Belittle has no chance of becoming English.And as more critical writers of America,like those of Britain,feel no need of it,the sooner it is forgotten,the better." This expert failed to kill the word.Today.belittle is used where the English language is spoken. Question: From the text we can know that . Options: A: all critics thought little of the Count de Buffon B: Europe has better wonders than the New World C: the word"belittle"survived from disagreements D: word experts can change the future of a new word
(Answer)
C

Read the article and select the best answer. Article: Global Positioning Systems are now a part of everyday driving in many countries.These satellitebased systems provide turnbyturn directions to help people get to where they want to go.However,they can also cause a lot of problems,send you to the wrong place or leave you completely lost.Many times,the driver is to blame.Sometimes a GPS error is responsible.Most often,says Barry Brown,it is a combination of the two. Barry Brown is with the Mobile Life Centre in Stockholm,Sweden.He told us about an incident involving a friend who had flown to an airport in the eastern United States.There he borrowed a GPSequipped car to use during his stay.Mr Brown says,"They just plugged in an address and then set off to their destination.And,then it wasn't until they were driving for thirty minutes that they realized they actually put in a destination back on the West Coast where they lived.They actually put their home address in.So again,the GPS is kind of 'garbage in garbage out'." Mr Brown says this is a common human error,but what makes the problem worse has to do with some of the shortcomings,or failures,of GPS equipment.He says,"One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn.Because they just give you the next turn,sometimes that means that it is not really giving you the overview that you would need to know that it's going to the wrong place." Mr Brown says,"One of the things that struck us,perhaps the most important thing was that you have to know what you're doing when you use a GPS.There are these new skills that people have developed.There are these new competencies that you need to have to be able to use a GPS because they sometimes go wrong.This goes against a common belief that GPS systems are for passive drivers who lack navigational skills." Barry Brown says to make GPS systems better we need a better understanding of how drivers,passengers and GPS systems work together. Question: According to Barry Brow,in most cases, _ are blame for the problems. Options: A: human errors B: GPS errors C: errors caused by both drivers and GPS D: errors caused by putting in a wrong address
C