A. often ask questions

　　B. always get satisfying answers from his friends

　　C. try to do well in physics

　　D. read a lot

　　2. We human beings are interested in finding life on another planet because ________.

　　A. we are naturally drawn to other things that are alive and are curious about them

　　B. most of us want to have more friends

　　C. some of us are eager to rule the universe

　　D. scientists want to show how modern our technology is

　　3. Robots can be sent to Mars because ________.

　　A. we have enough robots

　　B. they're strong and big

　　C. everything is easy to them

　　D. some duties are too dangerous for human beings to fulfill

　　Ⅱ.任务型阅读

　　Does failure really exist?

　　If you believe you have failed, then you have.If you believe you don't have the ability to succeed, then you don't. 1.________The moment you decide to give up or stop working toward your goals, failure is born.

　　2. ________

　　Most people give themselves an out without even realizing it.They are willing to work hard on reaching their goals, but only until the going gets too rough or their energy dies down.Don't do that! 3.________ Never quit, never admit failure, and never lose heart.

　　Don't believe in a clear finish line for goals.

　　It's a good idea to set a general timeline (时间表), but remember that something will be beyond your control. 4.________ If you lock yourself into a given timeline, you might make yourself feel like a failure! Instead, get a general idea of when you'd like your goal to be completed.Then take it one day at a time and focus on making progress instead of reaching the finish line in as little time as possible.

Be sure that you don't see difficulties as failures.