Read the article and select the best answer. Article: As in the field of space travel, new technologies continue to appear in undersea exploration. They share a number of similarities with each other -- as well as some important differences. Manned submersibles , like spaceships, must maintain living conditions in an unnatural environment. While a spaceship must simply be sealed against the vacuum space, a submersible must be able to bear extreme pressure if it is not to break up in deep water. In exploring space, unmanned vehicles were employed before astronauts. In undersea exploration, on the other hand, men paved the way, and only recently have unmanned remote-operated vehicles (ROVs) been put to use. One reason for this is that communicating with vehicles in orbit is much easier than talking to those underwater. A vacuum is an ideal medium for radio communications, but underwater communications are limited to much slower sound waves. Thus, most undersea vehicles -- particularly ROVs -- operate at the end of long ropes. For a similar reason, knowing where you are undersea is much more difficult than in space. A spaceship's position can be located by following its radio signal, or by using telescopes and radar. For an undersea vehicle, however, a special network of sonar devices must be laid out in advance on the ocean floor in the area of a dive to locate the vehicle's position. Though undersea exploration is more challenging than outer space in a number of respects, it has a distinct advantage: going to the ocean depths doesn't require the power necessary to escape Earth's gravity. Thus, it remains far less expensive. Question: What can we infer from the passage? Options: A: Submersibles usually break up in deep water. B: Undersea vehicles can receive signals immediately. C: Going to space needs power to escape the gravity. D: Radio communications are quite difficult in a vacuum.
C

Read the article and select the best answer. Article: I am one of those people who are terrible at saying no. I take on too many projects at once, and spend too much of my time doing things I'd rather not be doing. I get stuff done, but it's not always the best I can do, or the best way I could spend my time. That's why my newest goal, both as a professional and a person, is to be a quitter. Being a quitter isn't being someone who gives up, who doesn't see important things through to the end. I desire to be the opposite of that. The quitter I want to be is someone who gets out when there's no value in what he's doing, or when that value comes at the expense of something more important. We get involved in something, realize we don't want to be a part of it, but keep on going. We say "Well, I've already invested so much time in this, I might as well stick it out." A friend of mine once told me, "I knew I was an adult when I could stop reading a book, even after getting 500 pages into it." Odd though it sounds, we all tend to do this. I propose the opposite: quit as often as possible, regardless of project status or time invested. If you're reading a book, and don't like it, stop reading. Cut your losses, realize that the smartest thing to do is stop before your losses grow even more, and quit. Instead of reading an entire book you hate, read half of a bad one and half of a good one. Isn't that a better use of your time? Step back for a second. Let's learn how to say "no" at the beginning, or in the middle, and free up more of our time to do the things we'd like to be doing, and the things actually worth doing. Saying no is hard, and admitting a mistaken yes is even harder. But if we do both, we'll start to make sure that we're spending our time creating value, rather than increasing our losses. Let's be quitters together. Question: The message the author tries to convey is to _ . Options: A: learn to say no B: create more value C: live your life to the fullest D: stop doing many things at a time
A

Q: Read the article and select the best answer. Article: The young boy was sitting on the ground in the refugee camp playing with an empty tin.Other children were standing around watching him with envious eyes. Envy? Of an empty tin? This tin was indeed no worthless piece of trash--it was a splendid truck,complete with wheels and grille and floor.The vehicle even had remote control,a frayed piece of string from the"engine"to the hand of the owner. The tin had lost all its original markings.But its first load had probably been sardines .Later the tin had been left with other rubbish behind the refugee camp clinic,and the boy had found it on one of his daily expeditions into the"big world". For thousands of refugee children,a tin 1ike this rates high on their list of wants.It can be used for many purposes,as jewellery,as a toy,for drinking or as a medicine box. Many refugee children would consider it the happiest day of their lives if they received a handful of marbles as a present. They dream of gifts which children in developed countries take for granted.Maybe a book to read.or a pencil and an exercise book of their very own. Their imagination can create toys,but it cannot create books.Someone else must provide them.A more costly and valuable gift they cannot imagine. Question: Other children envied the young boy because the boy _ . Options: A: had something to play with B: got some sardines to eat C: received a handful of marbles D: had a real truck toy
A: A

Read the article and select the best answer. Article: One day a lady saw a mouse running across her kitchen floor. She was very afraid of mouse, so she ran out of the house, got into a bus and went to the shops. There she bought a mousetrap. The shopkeeper said to her, "Put some cheese in it and you will soon catch that mouse." The lady went home with her mousetrap, but when she looked in her cupboard, she could not find any cheese in it. She did not want to go back to the shop, because it was very late, so she cut a picture of some cheese out of a magazine and put that in the trap. Surprisingly, the picture of the cheese was quite successful! When the lady came down to the kitchen the next morning she found a picture of a mouse in the trap beside the picture of the cheese Question: What would be the best title of the story? Options: A: A clever mouse B: A successful way C: A fine match D: A clever lady
C