Q: Read the following article and answer the question. Article: A new planet-hunting technique has detected the most earth-like planet yet around a star other than our sun, raising hopes of finding a space rock that might support life, astronomers reported recently. "This is an important discovery to answer the question 'Are we alone?'" said Michael Turner of the National Science Foundation. "The team has discovered the most earth-like planet yet, and more importantly, has proved the power of a new technique that is sensitive to detecting planets that are fit for people to live on," Turner said in a statement. In the last decade, astronomers have detected more than 160 planets moving around stars outside our solar system. Most of these have been gas giant planets like Jupiter, which are unfit for life. But an international team has detected a cold planet about 5.5 times more massive than the earth -- still small enough to be considered earth-like -- moving around a star about 20,000 light years away, close to the center of the Milky Way. To find this new planet, the team used a technique called gravitational microlensing . When a planet is circling the closest star, the planet's gravity can add its own signature to the light. This kind of light signature was observed on July 11 by a group of telescopes in a project known as OGLE, short for Optical Gravitational Lensing Experiment. "The main advantage of microlensing is the signals for low-mass planets: They're not weak signals. They're just rare," Bennett of the University of Notre Dame in Indiana said by telephone. "If there happens to be a straight line between a foreground star with its planet and the background source star, then you're able to detect that planet." Question: From the news report we can infer that _ . Answer:

OPTIONS:
- the planet is like the earth because it is close to the center of the Milky Way
- it is quite possible that life may exist on other planets in the universe
- people have no interest in finding a planet that might support life
- the question "Are we alone" is too difficult for scientists to answer

A: it is quite possible that life may exist on other planets in the universe

Q: Read the following article and answer the question. Article: _ (from How Do Animals Move?) Many animals scurry up tree trunks to escape enemies or find food. Some live in the treetops. Many of these animals are not only expert climbers, but they also have found interesting ways to get from tree to tree. How Do Animals Adapt?andHow Do Animals Move? are comprehensive explorations of animal adaptations and movement for young readers. Both are part of a 21 book series,The Science of Living Things. InHow Do Animals Adapt?readers learn how animals adapt to survive with respect not only to climate, darkness, food and defenses but also to offspring and people. These adaptations are well explained in double page spreads with examples clearly depicted in photographs and diagrams and developed through their accompanying captions . As the title suggests, movement is the focus ofHow Do Animals Move?Beginning with a description of the explanation of movement, the reader is exposed to the many different ways of animals movement in the air, on land, under ground and in the water. Several unconventional variations (e.g. looping of inchworms, the rectilinear motion of snakes) are included. Once again, the photographs and diagrams plainly support the double page spread discussions of animal movement. The language of both titles is simple enough for young readers without talking down to them. In both books, terminology is featured in . Some of these words are explained in the basic glossary while the majority are explained clearly in the text. Many of these terms provide readers with some fascinating, uncommon words (e.g. brachiation, potassium, skein, and estimate). As do many of Kalman's book, both of these titles have a table of contents, glossary and index which are all enough to introduce young readers to the nature of these tools. Both titles would make excellent additions to any science collection for young readers. Question: What do we know about the two books? Answer:

OPTIONS:
- They are in high demand.
- They are easy to understand.
- They have got confusing titles.
- They are good choices for novel-readers.

A: They are easy to understand.

Q: Read the following article and answer the question. Article: People visit other countries for many reasons.Some travel on business;others travel to visit interesting places that are only found in other countries,such as the Taj Mahal in India. Wherever you go, and for whatever reason,it is important to be safe.While the majority of people you will meet when traveling are sure to be friendly and welcoming, there are dangers--theft being the most common.Just as in your home country, do not expect everyone you meet to be friendly and helpful.It is important to prepare for your trip in advance, and to take precautions while you are traveling. As you prepare for your trip, make sure you have the right paperwork.You don't want to get to your destination only to find you have the wrong visa,or worse,that your passport is about to _ .Also, make sure you travel with proper medical insurance, so that if you are sick during your travels,you will be able to get treatment.If you want to drive while you are abroad,make sure you have an international driver's license. Buy a guidebook and read about the local customs of the country you are going to.Also, try to learn a few basic words and phrases. When you get to your destination, use official transport.Always go to bus and taxi stands; don't accept rides from strangers who offer you a lift.If there is no meter in the taxi, agree on a price before you get in.If you prefer to stay in cheap hotels while traveling,make sure you can lock the door of your room from the inside.If you are traveling with valuables such as jewelry, or a lot of cash, you should ask about a safe for storing them in.Finally, remember to smile.Smiling is the friendliest and most sincere form of communication, and is sure to be understood in any part of the world! Question: Which of the following will expire? Answer:

OPTIONS:
- Hotel
- Luggage
- ID card
- Name

A:
ID card