Read the following article and select the best answer. Article: I spend a lot of time backpacking and hiking the outdoors and there are two pieces of equipment that are with me on each trip: an Adventure Medical Kits Weekender and an Adventure Medical Kits Suture Syringe Kit. Both proved very helpful on my most recent adventures to the Wrangell in Alaska. On that day, we were "blessed" with rain, making our water crossing on the Dixie Pass very difficult. Our party of 12 had almost reached our destination when I slipped, severely gashing my knee open in the process. While I could not see the wound at first because of the rain pants I was wearing, I knew _ was severe. Blood was running freely and I made those standing nearby aware of the damage. They quickly came over to assist, pulled my pack off and removed the Weekender First Aid Kit and Suture Kit from it. Fortunately, one of my partners is a doctor called William, who has often performed this type of work in the operating room, not out in the wild. I seriously think he was more nervous about all this than me! I, of course, was more than happy that I did not have to stitch myself up. As a marine, I've had to do it before. Fortunately, the sky had cleared up about two hours before, so we had great sunlight to work with. The doctor worked quickly with the assistance of another fellow camper acting as a nurse and placed seven stitches into my knee once the wound had been cleaned up. Later that evening we used a syringe we set aside loaded with Iodine to clean the wound and then bandaged it again. The doctor was very impressed with the kits contents! I've already ordered another Suture Syringe Kit. I have to say the kits are worth their weight in gold! Thanks for the contents in the kits! Question: From the passage, we can infer that the kits are _ . - useless - extremely useful - troublesome - not essential
extremely useful

Read the following article and select the best answer. Article: Around 200 million years ago, the earth was 18 degrees warmer than it is now. That might be a bit hot for humans, but it was just right for the giant dinosaurs that wandered about the earth during the Mesozoic era. A new study found that planteating dinosaurs may have contributed to the warming of the earthby releasing significant amounts of methane . The study, published in science journal Current Biology, focused on sauropods, longnecked herbivores that munched on the top of trees. They were the largest of the dinosaurs; food broke down in their stomachs for long periods of time. The researchers estimate that a sauropoda released 2,675 liters of methane per day--adding up to a large amount of the greenhouse gas being pumped from dinosaur's gut into the atmosphere. Plant eaters naturally release methane as part of their digestive process. The larger the animal, the more methane it produces. Methane, a greenhouse gas, traps heat and remains in the atmosphere for approximately 915 years, which warms the atmosphere. Today, some animals, such as cattle, goats and sheep, produce large amounts of methane as a byproduct to their food digestion. Methane is also released from human--influenced sources such as landfill, agricultural activities, coal mining and other industrial practices--which all contribute to today's climate change, according to the Environmental Protection Agency. The researchers estimate that earth's sauropods would have produced about 520 million tons of methane per year--similar to the total amount of methane produced today by natural and manmade sources. However, the researchers warn that their numbers are estimates based on multiple assumptions about the digestive systems and populations of dinosaurs. The author of the study David Wilkinson says the emission of methane from dinosaurs would have been just one of the causes of warm climate during the Mesozoic era. Other causes include gases produced from volcanoes, swamps, shallow seas and so on. Still,... Question: Scientists think dinosaurs may have led to the global warming because _ . - they ate everything they found - they usually had a good appetite - they released a lot of methane - there were too many dinosaurs on earth
they released a lot of methane

(Q).
Read the following article and select the best answer. Article: The other day, I received a most unexpected message in response to one of my essays:I am so proud of you and all you have accomplished. I shared your opinion ... It was signed Margaret Leibfried, who was my English teacher -- a teacher who appeared at a vital point in my life and helped me believe that I could become a writer. Thirty years ago, I entered high school as an introvert made all the more shy because I was the school's only nonwhite student. I always felt in danger of being swept away by a sea of tall white athletes. I spent a lot of time alone, reading and writing stories, hoping to escape being teased. Ms. Leibfried taught American literature and composition grammar, which involved the usual memorizing vocabulary, but also, thrillingly, reading novels. Thrilling to me, that is. Many of my classmates expressed dislike for novels because they were "not real." For once, I didn't care what they thought. Ms. Leibfried seemed to notice my interest in both reading and writing, and she took the time to make me feel less shy; she even offered me reading suggestions, like one of her favorite novels, "The Bell Jar." That year's big project was a book report, to be read aloud to the class. However, Ms. Leibfried suggested I do something "a little different." Instead of a report, I chose a passage from "The Bell Jar" that I considered as the best to recite. The morning of the presentations, I remember my hands sweating so badly as I walked to the front of the class that I kept my hands crossed, so I wouldn't wipe them on my blouse. When I finished, to my surprise, the class applauded. "Marie has picked out a particularly sensitive piece of writing and delivered it beautifully," Ms. Leibfried said, smiling. I felt, maybe for the first time, confident. Question: Why did Ms. Leibfried ask the author to recite a passage in front of the class? - To test whether she had a good memory. - To make her earn the respect of her classmates. - To help deepen her understanding of "The Bell Jar." - To guide her to build a good relationship with others.
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To make her earn the respect of her classmates.