Read the following article and select the best answer. Article: Plant cloning has been an agricultural technique used by farmers and gardeners for centuries. Grafting is a common form of plant cloning. Many plants in nature actually clone themselves and reproduce asexually. Cloned plants are much more predictable than normal plants, so their yield is more reliable. Cloned plants also reproduce faster, limiting the amount of time between planting and harvesting. It is also often cheaper to produce seeds through cloning than through traditional methods. Plants can essentially be optimized so that farmers or individual growers always have the best seeds available. With more yield at a faster rate, farms can produce more food for more people while decreasing overall costs. Cloning can be used to wipe out diseases that previously killed off entire fields of crops. This would make plants immune to the kinds of diseases that farmers and gardeners around the world fear each year. Crop failures due to disease and virus could become a thing of the past. Also, plants that are near extinction can be brought back to life through cloning. Through cloning scientists can develop "super" fruits and vegetables of superior nutritional quality. This could make for a healthier population overall. This is already being done through selective pollination , and genetic cloning could take it to the next level. By plant cloning we have a population of identical plants and all these plants equally suffer from the same diseases, but in nature the weak would die and the strong would survive. While there are some dangers to consider with plant cloning, there are plenty of benefits that could prove vital to the propagation of the human species. Question: What is the main purpose of the text? - To warn the negative effects of plant cloning. - To present different kinds of plant cloning. - To predict the future of plant cloning. - To inform us about the advantages of plant cloning.
To inform us about the advantages of plant cloning.

Read the following article and select the best answer. Article: Imagine a stranger walking past you on a cold, rainy day. "Lovely weather, isn't it?" the stranger says. Do you laugh, or even smile? If not, you may not have a dry sense of humor. British people, and particularly the English, are well-known for our dry sense of humor. We often say the opposite of what we mean in order to be funny, and tell jokes in a tone of voice that makes it sound like we are being completely serious. As US writer Julian Tan put it on the HuffPost Students blog: "It is as if it is 'Opposite Day' every day in Britain." If the people of Britain are known for having a " _ " and not showing emotion, then our dry sense of humor shows this through jokes. Often it will take a long time or several beers, to get a British person to tell you what they actually think about something and get behind the wall of humorous sarcasm that they have in front of them. English comedian Ricky Gervais put it like this: "We play jokes on our friends. We use sarcasm as a shield and a weapon. We avoid being serious until it's absolutely necessary." It can be annoying and confusing if you haven't been raised with these types of jokes: "Why did he just say such a ridiculous thing? Is he making fun of me?" But it is also true that understanding this type of humor is a good way to make friends with people in the UK, even if you don't find it funny. It's important to remember that the person telling the joke may actually be making fun of himself or herself, not you. One of the characteristics of British humor is "its strong theme of self-deprecation" (making fun of oneself), according to Tan. So don't worry - often, English people, and British people in general, just want to make fun of themselves! Question: It can be inferred from the passage that _ . - British people are famous for being emotional - British people's humor is often misunderstood - it's a tradition for British people to make fun of each other - it doesn't take a long time to make friends with British people
British people's humor is often misunderstood

Q: Read the following article and select the best answer. Article: Do you know any people like these? They are part of a new addiction called Internet addiction.Internet addicts spend at least thirty to forty hours online every week.The use of the Internet can be an addiction like drug use.People lose control of the time they spend on the Internet. For example,one college student was missing for several days.His friends were worried,and they called the police.The police found the student in the computer lab, he was surfing the net for several days straight. Studies show that about 6% to 10% of Internet users become addicted.And people worry about the teens because the Internet is changing the playing field for some of them.They spend more time in cyberspace than in the real world of friends and family. Is "surfing the net'' a hobby or an addiction for you? You may have a problem if you have these symptoms : *You do not go to important family activities or you do not do school work because you like to spend hours on the Internet. *You can't wait for your next online time. *You plan to spend a short time online,but then you spend several hours. *You go out with your friends less and less. Question: What does the beginning of the passage tell us? - How to become an Internet addict. - What an Internet addict usually does. - Where to find an Internet addict. - Why to write this passage.
A: What an Internet addict usually does.

(Q).
Read the following article and select the best answer. Article: To master a language one must be able to speak and understand the spoken language as well as to read and write.Lenin and his wife translated a long English book into Russian but when they went to England in 1902, English people couldn't understand a word Lenin and his wife said, and Lenin and his wife couldn't understand what was said to them.This shows the importance of spoken language. Speaking, of course can't go without listening.If you want to pronounce a word correctly, first you must hear it correctly.The sounds of Chinese and English languages are not exactly the same.If you don't listen carefully, you'll find it difficult or even impossible to understand the native speakers. Well, what about writing? Like speaking, it's to exchange ideas.People usually use shorter words and shorter sentences in their writing. The important thing is to make your idea clear in your mind and then to write it in a clear lively language. Chinese students read too slowly.If you read fast, you understand better.If you read too slowly by the time you have reached to the end of a page you have forgotten what the beginning is about.When you meet with new words don't look them up in the dictionary.Guess the meaning to form the context. You may not guess quite correctly the first time but as new words appear again and again in different context their meaning will become clearer and clearer. If you look up every word you'll never finish a book. Students of a foreign language need a particular knowledge, the knowledge of the life, history and geography of the people whose language they're studying. They should study those subjects in the foreign language not only in translation.In this way one can kill two birds with one stone: learn a foreign language and get some knowledge of the foreign country at the same time. Question: "Kill two birds with one stone" means _ . - to get some particular knowledge - to get more than what one pays - the stone is very useful - the birds are blind enough
(A).
to get more than what one pays