Question: Read the following article and answer the question. Article: I am in my father's house in Connecticut, sitting at a crowded table with my brother, my two sisiters and all our partners, talking about a tree. "He doesn't want it cut down." My sister says when my father has gone to bed and none of us speaks of the tree in his presence. "He says he usef to climb it when he was a boy." When I was last here, a year and a half ago, for my father's 90th birthday, Hurricane Irene drove seawater into the roads. The large tree that hangs over the houses swayed alarmingly, but it stayed up. Last October, Hurricane Sandy acused a great deal of damage. Six months on, many of the surrounding houses are on sale, but the tree that hangs over the house still stands. "That tree," my brother says, "has survived the two worst storms of the last 100 years." Though my brother thinks highly of the amazing staying power of the tree, my sister says that the tree should never have been planted: it stops light from reaching the house. My other sister's partner says that all trees fall down eventually. There is plenty of evidence for what he says: throughout the neighborhood, the ramains of similarly sized trees lie on their sides, with their roots in the air. During this discussion, I offer to pay a quarter of whatever is required to remove the tree. "A guy I talked to," my brother says, "told me it could cost us$10,000." As night wears on, the discussion becomes increaslingly meaningless. There is no point in reaching any kind of agreement, since the decision is not for us to make. It's my father's tree, and he has refused to cut down the only thing in the neighborhood older than him. Question: According to the text, the tree _ Answer:
OPTIONS:
- is more than 90 years old
- has survived two storms in its life
- will fall down after the author's father's death
- is the only large tree in the neighborhood
Answer: is more than 90 years old

Question: Read the following article and answer the question. Article: In the late 1970's,many people in North America turned their attention to environmental problems ,and new steel -- and -- glass skyscrapers were widely criticized. Some ecologists pointed out that a number of tall buildings in a city often overburden public transportation. Skyscrapers are also _ of electric power and water. In just one recent year, the addition of 17 million square feet of skyscraper office space in New York City itself has already raised the top daily demand for electricity by 120, 000 kw -- enough to supply the entire city of Albany in New York area for a single day. Glass--walled skyscrapers can also be especially wasteful. The heat loss ,or gain, through a wall of half inch plate glass is more than ten times that through a typical ordinary wall filled with bricks or board. In order to decrease the pressure on heating and air -- conditioning equipment, builders of skyscrapers have begun to use double--layered glass ,and reflective glasses coated with silver or gold mirror films that could reduce glare as well as heat gain. However, mirror -- walled skyscrapers may raise the temperature of the surrounding air and affect neighboring buildings as well. Skyscrapers put a severe pressure on a city's sanitation facilities, too. If fully occupied, the towers just within the central area of New York would alone produce 2. 25 million gallons of waste water each year^--as much as the city size of Stanford, Connecticut, which has a population of more than 109,000. Question: Glass walls of skyscrapers are specially mentioned in order to _ . Answer:
OPTIONS:
- show how skyscrapers manage to lessen their pressure
- explain why skyscrapers can control its air conditions
- describe further how wasteful skyscrapers could be
- present the stability of skyscrapers in modern buildings
Answer: describe further how wasteful skyscrapers could be

Question: Read the following article and answer the question. Article: As an experienced photojournalist in Nashville, Tennessee, I was hired by USA Today newspaper to photograph a spinal bifida corrective surgical procedure. It was to be performed on a twenty-one week old fetus in uterus at Vanderbilt University Medical Center. At that time, in 1999, twenty-one weeks in uterus was the earliest that the surgical team would consider for surgery. The worst possible outcome would be that the surgery would cause premature delivery, and no child born earlier than twenty-three weeks had survived. The tension could be felt in the operating room as the surgery began. A typical C-section cut was made to access the uterus, which was then lifted out and laid at the junction of the mother's thighs . The entire procedure would take place within the uterus, and no part of the child was to breach the surgical opening. During the procedure, the position of the fetus was adjusted by gently moving the outside of the uterus. The entire surgical procedure on the child was completed in one hour and thirteen minutes. When it was over, the surgical team breathed a sigh of relief, as did I. As a doctor asked me what speed of film I was using, out of the corner of my eye I saw the uterus shake, but no one's hands were near it. _ was shaking from within. Suddenly, an entire arm thrust out of the opening, then pulled back until just a little hand was showing. The doctor reached over and lifted the hand, which reacted and squeezed the doctor's finger. As if testing for strength, the doctor shook the tiny fist. Samuel held firm. I took the picture! Wow! It happened so fast that the nurse standing next to me asked, "What happened?" "The child reached out," I said. "Oh. They do that all the time," she responded. The surgical opening to the uterus was closed and the uterus was then put back into the mother and the C-section opening was closed. It was ten days before I knew if the picture was even in focus . To ensure no digital manipulation of images before they see them, USA Today requires that film be... Question: In 1999, people believed that it was _ . Answer:
OPTIONS:
- possible for a fetus 21 weeks born to survive
- likely for a fetus born 21 weeks to become abnormal
- right time for a fetus born 21 weeks to receive an operation
- risky for a fetus 21 weeks in uterus to receive an operation
Answer:
risky for a fetus 21 weeks in uterus to receive an operation