Question: Read the following article and select the best answer. Article: Film cameras and digital cameras work in a similar way. Film cameras After all, a film camera is basically a light - proof box. It has a lens system to focus light onto the film at the back of the camera. Let's suppose that we are outside on a beautiful summer day trying to take a picture of the family dog. We are using a film camera. We finally get the dog to lie still. You point the camera at him. What happens? Light goes into the camera lens and hits the shutter. In other words, nothing happens yet. Now let's say that the dog looks really cute and you decide to snap a picture. What happens? When you press the button, the shutter opens for a very short period of time. A small amount of light passes through and hits the film at the back of the camera. This creates an upside-down and reversed image on the film. When you finish the roll of the film, you can take it to the photo shop to develop it and you will have a great picture of your dog! Cameras come with different lens lengths. Why does it matter? Many small cameras have shorter focal lengths, which means that there is a small distance between the lens and the place where the light focuses at the back of the camera. This gives you a large view of the area you are taking a picture of. Lenses with a long focal length show a smaller area but allow you to focus on distant objects and make them bigger. They are often called telephoto lenses. A good example of a long focus lens is one that is used by sports photographers to get photos of football players as if they were standing right beside them. Digital cameras In digital cameras, the light falls not on film but onto a sensor called a CCD (Charge Coupled Device). This digitally converts light and color into a digital information or pixels . The CCD is the heart of any digital camera and usually the most expensive part ---- depending on how good it is. Question: The main reason that sports photographers can get clear and big photos of players is that _ . - they use digital cameras - the lens of their cameras is excellent - their focus lenses are short - their focus lenses are long
Answer: their focus lenses are long

Question: Read the following article and select the best answer. Article: I may not be the wisest person on this planet.but I will tell you a little secret to happiness:Help other,,and live life.It is that simple.Just help a friend study for a test,or volunteer at a nursing home .I learned this after a long,hard search. I was feeling really down because my long4ime friend had died.Then I started a six-week volunteering at a nursing home all day every Saturday.My routine was to serve the meal and clean up.After that,I would wait for the head nurse to tell me what to do. One day I was told to go to Room 117 to make sure the patient was all right.In the room I found a boy of eight sitting in his bed watching a movie.I was shocked to see a child in this seemingly forgotten nursing home for the old.He was so small and weak that you had to look closely to find him.He motioned for me to sit down.I grabbed his medical chart from which later I found out he had a terminal illness. We started to talk,and I found out that his family rarely visited,and all he did ever7 day was watch TV.I wanted to cry for him,and for my lost friend.As we talked,he had a smile on his face,and I asked him why. "The entire two hours I've been here you've never lost that smile.With this horrible disease,how do you still manage to stay happy?" He thought for a moment,and then said that too many people are dead even before they die. They walk around feeling that God has cursed them and that they have nothing to live for. The boy said that he would not be like that.He wakes every morning thankful to see another sunrise.He keeps his window open so that he can smell the flowers and feel the heat of the sun.He also said that he has hope. "Too many people haven't seen much of that around here," he said," Life is full of hope and we need to live life before it is gone." I don't know what happened to him.I assume he passed away,but his lesson lives on.I now wake up and live each day to the fullest.The key to life is not money or fame,but the lessons we learn from it. Question: What would be the best title for the passage? - A Lesson in Hope - The Life of a Sick Boy - A Voluntary Job - The Meaning of Life
Answer: A Lesson in Hope

Question: Read the following article and select the best answer. Article: Sixteen years ago, Eileen Doyle's husband, an engineer, took his four children up for an early morning cup of tea, packed a small case and was never seen or heard from again. Eileen was astonished and in a state of despair. They had been a happy family and, as far as she knew, there had been nothing wrong with their marriage. Every day of the year a small group of men and women quietly pack a few belongings and, without so much as a note or a good-bye, close the front door for the last time, leaving their debts, their worries and their confused families behind them. Last year, more than 1,200 men and nearly as many women were reported missing from home -- the highest in 15 years. Many did return home within a year, but others rejected the past completely and are now living a new life somewhere under a different identity. To those left behind this form of desertion is a terrible blow to their pride and self-confidence. Even the finality of death might be preferable. At least it does not imply rejection or failure. Worse than that, people can be left with an unfinished marriage, not knowing whether they will have to wait seven years before they are free to start a fresh life. Clinical psychologist Paul Brown believes most departures of this kind to be well planned rather than impulsive. "It's typical of the kind of personality which seems able to ignore other people's pain and difficulties. Running away, like killing yourself, is a highly aggressive act. By creating an absence the people left behind feel guilty, upset and empty." Question: Eileen Doyle reacted that way after her husband's leaving, because she _ . - failed to hear from him for a long time - had no idea what was wrong with their family life - blamed herself for something wrong she did - wondered why her husband took up all their children
Answer:
had no idea what was wrong with their family life