[单项选择]Jackie complained that nobody was doing anything to______.
A. prevent people from having trouble with teeth
B. stop teeth from falling out
C. put men on the moon
D. transplant hearts and other organs

[单项选择]Jackie complained that nobody was doing anything to _______.
A. prevent people from having trouble with teeth
B. stop teeth from falling out
C. put men on the moon
D. transplant hearts and other organs

[单项选择]Man: Have you any idea what Jack Johnson’s doing these days
Woman: Do you know, I’ve lost track of him.
Question: What does the woman mean（　）.
A. She has no idea where Jack is.
B. She last saw Jack at the race track.
C. She’s been trying to track Jack.
D. Jack was lately seen driving a truck.

[简答题]

What are you doing when you aren’t doing anything at all If you said "nothing," then you have just passed a test in logic and failed a test in neuroscience. (46)When people perform mental tasks, different areas of their brains become active, and brain scans show these active areas as brightly colored squares on an otherwise dull gray background. But researchers have recently discovered that when these areas of our brains light up, other areas go dark. This dark network is off when we seem to be on, and on when we seem to be off. When we appear to be doing nothing, we are clearly doing something. But what
The answer, it seems, is time travel. (47)The human body moves forward in time at the rate of one second per second whether we like it or not, but the human mind can move through time in any direction and at any speed it chooses. Why did evolution design our brains to go wandering in time Perhaps it’s because an experi- ence is a terrib

[单项选择]　Nobody Had Believed It Was Possible 　　In 1912, the Titanic hit an iceberg on its first trip across the Atlantic, and it sank four hours later. It was carrying 2207 people, but it had taken on enough lifeboats for only 1178 people. When the passengers tried to leave the ship, only 651 of them were able to get into lifeboats and 1502 people lost their lives. 　　Throughout the whole tragedy, the California was only ten miles away. Its officers were close enough to see the Titanic, but they did not understand the situation. They never received the Titanic’s call for help, and they did not come to the rescue until too late. 　　First of all, nobody had prepared for such a tragedy. Nobody had believed that the Titanic could sink. The steamship company had thought that its ship would be completely safe in all situations. They followed an old rule for the number of lifeboats, so they had supplied lifeboats for only half the people. And the passengers had not practiced lifeboat drills before t
A. Right
B. Wrong
C. Not mentioned

[填空题]If only you hadn’t told Jackie what I said,______ (一切就都不会有问题了).

[单项选择]

听下面一段对话，回答下列问题。

What was the speaker doing when the customer walked one morning（　）.
A. Planting some trees in the backyard.
B. Reading a want ad from a local newspaper.
C. Putting up a "going out of business" sign.