A．A bit lazy. B．Quite smart.

　　C．Very healthy. D．Truly honest.

　　答案与解析：A　推理判断题。由第一段中的"Julia... always complaining that I leave things till the last minute"可知，作者总是把事情拖到最后时刻才做，故在老师Julia眼里，他有点懒散。

　　2．What does Paragraph 3 mainly tell us?

　　A．Why we can't have a better life.

　　B．How our brain sees ourselves in the future.

　　C．How our brain helps us make good decisions.

　　D．Why it is not easy for us to change our habits.

　　答案与解析：D　段落大意题。由第二段可知，作者想改掉以前的习惯却发现很难。第三段承接上段内容，由其中的"It's our brain's. It's programmed to make it difficult to break bad habits"可知，作者在本段介绍他看到的一篇关于大脑在人们做决定时如何运转的文章，旨在告诉读者为何改变旧的习惯是如此之难。

　　3．According to scientists, in order to form the habit of taking exercise, the author needs to take about ________.

　　A．another two weeks B．another four weeks

　　C．another six weeks D．another ten weeks

　　答案与解析：C　推理判断题。由第二段中的"I've also been trying to get fitter for four weeks now"和倒数第二段中的"Scientists have also discovered that it takes around ten weeks to form a good habit"可知，根据科学家的研究，已锻炼四周的作者，再需要大约六周的时间就能养成锻炼的好习惯。

　　B

Australia was first used as an island prison by Britain to solve their problem of having a fast growing prison population. These early settlers were those who were sent from all over Great Britain, including Ireland, Wales, and Scotland. Later events, such as the gold rush, caused several waves of immigration (移居) from Europe, Asia and other parts of the world. It is commonly thought that Australians are offspring (后代) of those criminals (罪犯)! In fact, only a part of Australians are those criminals'