74. From the passage we can learn that ________.

A. bacteria disappear in the inner part of ice B. bacteria must be also alive on other planets

C. bacteria can grow in extreme weathers D. bacteria grow by breaking themselves down

75. The passage is mainly about the possibility of the existence of life _________.

A. under the sea B. in hot water C. on other planets D. under glaciers

Section C

Directions: Read the following text and choose the most suitable heading from A-F for each

paragraph. There is one extra heading which you do not need.

Many men are devoted to exercise to build up their bodies, but the phrase “use it or lose it” applies to more than just the muscle in our bodies—it also applies to our brains. Here are 5 tips that can help our brains stay sharp.

76. _________

It plays an important role in all cognitive activities, including reading, reasoning and mental calculation. There are several types of its work in the brain. Taken together, these are the cognitive skills we may notice most when they begin to fail. To keep a good memory, you need to train for it, which can be easier than you think. Listening to music is enjoyable. By choosing a song you don’t know and memorizing the lyrics, you improve your memory skills.

77. _________

It is necessary in nearly all daily tasks and it enables you to focus despite noise and to think about several things at once. We can improve the skill by simply changing our routines. Change your course to work or reorganize your desk—both will force your brain to wake up and pay attention again.

78. _________

It will increase your ability to recognize, remember and understand words. With regular practice, you can expand your knowledge of new words and more easily think of words to say because they will come to you more naturally. For example, if you usually only read the sports section, try reading a few business articles. You’ll learn new words, and by using them you can also exercise your brain.

79. _________

You can also exercise your brain by taking advantage of your environment. Try walking into a room and picking out five items and their locations. When you exit the room, try to remember all five items and where they are located. Too easy? Wait two hours and try to remember those items and their locations. Analyzing what you saw will force you to use your memory and train your brain to focus on your surroundings.

80. _________

It helps you make decisions, build up hypotheses and consider the possible consequences of your actions. Activities in which you must define a strategy to reach a desired outcome and calculate the right moves to reach the solution in the shortest possible time are actually fun activities you can do daily. For example, playing video games requires you to come up with a strategy so as to advance to the next level.

Section D

Directions: Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words.

In so many ways, cyberspace(网络空间) mirrors the real world. People ask for information, play games, and share hobby tips. Others buy and sell products. Still others look for friendship, or even love.

Unlike the real world, however, your knowledge about a person is limited to words on a computer screen. Identity and appearance mean very little in cyberspace. Rather, a person’s thoughts—or at least the thoughts they type—are what really count. So even the shyest person can become a chat-room star.

Usually, this “faceless” communication doesn’t create problems. Identity doesn’t really matter when you’re in a chat room discussing politics or hobbies. In fact, this emphasis on the ideas themselves makes the Internet a great place for exciting conversation. Where else can so many people come together to chat about their interests?

But some Internet users want more than just someone to chat with. They’re looking for serious love relationships. Is cyberspace a good place to find love? That answer depends on whom you ask. Some of these relationships actually succeed. Others fail miserably.

Supporters of online relationships claim that the Internet allows couples to get to know each other intellectually first. Personal appearance doesn’t get in the way.

But critics of online relationships argue that no one can truly know another person in cyberspace. Why? Because the Internet gives users a lot of control over how others view them. Internet users can carefully craft their words to fit whatever image they want to give. And they don’t have to worry about what their “faceless” communication is doing for their image. In a sense, they’re not really themselves.

All of this may be fine if the relationship stays in cyberspace. But not knowing a person is a big problem in a love relationship. With so many unknowns, it’s easy to let one’s imagination “fill in the blanks.” This inevitably leads to disappointment when couples meet in person. How someone imagines an online friend is often quite different than the real person.

So, before looking for love in cyberspace, remember the advice of Internet pioneer Clifford Stoll: “Life in the real world is far richer than anything you’ll find on a computer screen.”

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

81. We learn about a person in cyberspace only through ______________________________.

82. Why is the Internet a great place for exciting conversation?

83. What makes online love relationship often fail?

84. From the passage we can learn that the writer __________________________ looking for love on the Internet.