Read the article and select the best answer. Article: It is easy for us to tell who our family members are, but do plants recognize their own family? Some do, scientists say, according to a report by Science News in early 2010. Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either _ or strangers. When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough. When jewelweed seedlings were planted with siblings, they grew a few more branches than they usually would if they were alone - but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete. According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach - where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots. Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water - so when they're threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves. Question: According to the passage, flowers planted alone will _ . Options: A: grow more leaves than those planted in groups B: become taller than those with more branches C: grow fewer leaves than those planted with strangers D: become ill easily because they can't get enough shade
C

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Read the article and select the best answer. Article: Have you ever thought about seeing the world for free? Although it may sound impossible, there's a growing community that is making that dream one step closer. The community is called Couchsurfing. The idea is that people open their homes up to travelers for free, and in exchange both people will learn from each other. Instead of paying a lot of money staying in hotels, living with locals is both cheap and authentic . Maybe you'll find a hidden attraction in the city. It may be a good place where people like to visit. This is also your chance to ask what life in their country is really like. It also works as a culture exchange. For example,if you play the guitar and your host is a great cook, teach him or her how to play to say thank you for the dinner. This type of exchange is popular. But what are some manners of being a good Couchsurfer? First, be careful about cultural taboos . For example, if you eat with Indians, never use your left hand. In Indian culture, left hands are used for the toilet. Also, when you are going to leave, it's a good idea to prepare a small gift. This shows your _ to the home owner. Now, are you ready to travel like a local? Where will you surf first? Question: According to the passage, what's the Couchsurfing? Options: A: A travel way to offer the travelers their homes for free. B: Offer food to the travelers for free. C: Show some places of interest for free. D: Take the travelers to some places in the city for free.
(Answer)
A

Ques: Read the article and select the best answer. Article: Coffee has been a part of people's lives for thousands of years, and today it is still one of the favorite drinks in the world. Many people in the world begin their busy day by drinking a cup of or several cups of coffee. They have always said that a cup of coffee in the morning helps them begin their day in the right way. So they say a cup of coffee is necessary for them in the morning. Do you know what in the coffee makes our bodies and brains active? It is caffeine . Caffeine may increase a person's mental and physical abilities . For example, two cups of coffee will make you breathe faster and _ body heat. All this makes you heart beat faster, and doctors warn that this may be a little dangerous. Caffeine is found in tea, coffee, chocolate and some other foods. A little caffeine is probably not harmful. But much caffeine can make people nervous and sleepless. Question: A good title for this passage is _ . Options: A: Coffee Is Harmful B: Coffee and Tea C: Caffeine and Health D: Caffeine Is Useful
Ans: C

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Read the article and select the best answer. Article: A professor began his class by holding up a glass with some water in it. He held it up for all to see and asked the students, " How much do you think this glass weighs?" "50 grams ! " "100 grams ! " "125 grams ! " the students answered. "I really don't know unless I weigh it , " said the professor, " but , my question is : What would happen if I held it up like this for a few minutes?" " Nothing , " the students said. "OK, what would happen if I held it up like this for an hour?" the professor asked. "Your arm would begin to ache, " said one of the students. "You are right, now what would happen if I held it up for a day?" "Your arm could go numb , and you might have to go to hospital, " another student said. "Very good ! But during all this, did the weight of the glass change?" asked the professor. "NO" "Then what made the arm ache and the muscle( ) stress?" The students were puzzled. " Put the glass down" said one of the students. "Exactly ! " said the professor. " Life's problems are something like this. Hold them for minutes in your head and they seem OK. Think of them for a long time and they begin to ache. Hold them even longer and they begin to trouble you. You will not be able to do anything. It's important to think of the problems in your life, but even more important to ' put them down' at the end of every day before you go to sleep. That way, you are not stressed; you wake up every day fresh and strong and can handle any issue, any challenge that comes your way ! " ,. Question: What is the best title for the text? Options: A: Put the glass down B: Keep the glass in your hand C: Face the challenges D: Problems fill our life
(A).
C

Read the article and select the best answer. Article: Here are three girls. They are talking about their favorite clothes and colors. "I like skirts very much. I have many skirts in my wardrobe . Red is my favorite color. I have a red skirt, and it's my favorite skirt. My mother buys it for me. It's$168," Grace says. "My mom often buys new skirts for me. All my skirts are nice. I have skirts in all colors. My favorite one is a yellow skirt. It's nice. And yellow is my favorite color," Emily says. "I don't like skirts. T-shirts and shorts are my favorite. Black and white are my favorite colors. People often say I look like a boy." Kelly says. ,. Question: What's Grace's favorite color? Options: A: Green. B: Red. C: Black. D: blue
B