Read the article and select the best answer. Article: When you watch TV programs about wild animals, it is surprising to see how an antelope can escape a lion's attack. In the wilderness, everyone has a stunt. Even plants have their own ways of fighting off enemies. Over millions of years of evolution, plants have developed a unique defence system. Chemicals are wildly used for survival. By making their leaves, flowers, roots and fruits distasteful or poisonous to enemies, plants can fight back. One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree's leaves, the amount of poison increases in the other leaves. "It's like the damaged leaves telephoning the others telling them to fight together against the enemy, " he said. The tree also sends defence messages to neighboring plants by giving out a special smell. Golden Wattle trees in the surrounding 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees' leaves, it will die. Every species of plant or tree is good at the production of a particular set of chemicals. A _ that can safely eat the leaves of one tree may be poisoned by its neighbor. In this way, plants have developed not only individual defence system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest. Question: Which of the following can be the best title of the passage? Options: A: Plants Fight back with Poisons B: Plants Can Kill Animals C: Animals and Plants D: Lions and Antelopes
A

Read the article and select the best answer. Article: Are _ born or made? In my case it was definitely made. In my early 20s, I hardly went to bed before midnight, and I would always get up late the next morning. But after a while I couldn't ignore the high relationship between success and rising early. On those rare occasions where I did get up early, I noticed that my productivity was always higher. So I set out to become a habitual early riser. But whenever my alarm went off, my first thought was always to stop that noise and go back to sleep. Eventually some sleep research showed that my strategy was wrong. The most common wrong strategy is this: supposing you're going to get up earlier, you'd better go to bed earlier. It sounds very reasonable, but will usually fail. There are two main schools of thought on sleep patterns. One is that you should go to bed and get up at the same time every day. The second school says you should go to bed when you're tired and get up when you naturally wake up. However, I have found both are wrong if you care about productivity. If you sleep at fixed hours, you'll sometimes go to bed when you aren't sleepy enough. You're wasting time lying in bed awake. My solution is to combine both methods. I go to bed when I'm sleepy and get up with an alarm clock at a fixed time. So I always get up at the same time (in my case 5 a.m.), but I go to bed at different times every night. However, going to bed only when I'm sleepy, and getting up at a fixed time every morning are my ways. If you want to become an early riser, you can try your own. Question: Why did the author want to become a habitual early riser? Options: A: Because he / she wanted to have more sleep time. B: Because he / she wanted to do morning exercise. C: Because he / she wanted to test which school is better. D: Because he / she found that the productivity was higher.
D

Read the article and select the best answer. Article: MOSCOW, Sept. 4 (Xinhuanet) --- At least 335 people including 155 children, were killed in the three-day hostage crisis in a southern Russian school, Russia's Deputy Prosecutor General Sergei Fridinsky said on Saturday. "We are still identifying the bodies. We have recovered 322 bodies, and 155 of them are children," Fridinsky was quoted by the Itar-Tass news agency as saying. The prosecutor said the death toll would probably grow as the clean-up operation is continuing at the site, but it will not rise considerably. Emergency workers pulled the bodies out of the school on Saturday, after Russian special forces rescued more than 400 children and adults hostages in a special operation that has suppressed the hostage -taking standoff by Friday night. Valery Andreyev, regional chief of the Federal Security Service (FSS), said Friday that over 30 armed militants took part in the hostage-taking crisis and Russian troops captured three of them alive on Friday, according to the Interfax news agency. He said people of Russian origin and foreign nationals were among the killed hostage-takers. Earlier official information showed that ten Arab militants were killed in Friday's raid . Andreyev said a large amount of explosives and mines planted by hostage-takers in the school have been found. Rusian Presidnet Vladimir Putin made a surprise visit early Saturday to the southern Russian town of Beslan where commandos stormed the school to end the hostage crisis. He accused the attackers of trying to _ an racial conflict that would engulf Russia's troubled Caucasus Mountains region. Question: It can be inferred that the Russian hostage crisis began on _ . Options: A: Wednesday B: Monday C: Friday D: Saturday
A

Read the article and select the best answer. Article: If you are in a crowd, a first and most important thing is to make yourself familiar with your surroundings and mentally notice alternate exits. No matter where you are, make sure you always know how to get out. Make sure you know the type of ground you are standing on. For example, in a crowd of moving people wet ground can be dangerous, causing you to fall. You should know the general atmosphere of the event, as panic situations can often be predicted. When in danger, a few seconds can make all the difference, giving you the possibility of taking advantage of your escape route. Always stay closer to the escape route If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you could easily get injured or even be killed by being stepped on by other people. Instead, move in the same direction of the crowd; take advantage of any space that may open up to move sideways to the crowd movement where the flow is weaker. Keep your hands up by your chest, which will protect your chest during the movement. If you fall, get up quickly. If you can't get up because you are injured, get someone to pull you back up. If you fall and can not get up, keep moving by crawling in the same direction of the crowd. Do not lie on your stomach or back, as this is dangerous for your body. The worst situation is to be pushed by the crowd against an immovable object. Try to shun High walls, as the crowd pressure can build up rapidly. After you're pushed forward, the way you move is on a diagonal . There's always space between people. You work your way out that way till you get out of the crowd. Question: When you are in a crowd the first thing you do is _ . Options: A: fight against the pressure B: stay closer to an immovable object C: move in the same direction of the crowd D: be familiar with the surroundings
D