2 . Digital Heaven
If you had the opportunity to live forever, would you take it? The
How? One plan
As a further step, Ray Kurzweil also consider the nano transmitters being able to connect you to a world of virtual reality on the Internet, similar to what was depicted in the film ‘Matrix’. With the nano transmitters in place, by thought alone, you could log on to the Internet and instead of the pictures coming up on your screen they would play inside your mind.
For Ray this would be, quite
Generations of Christians believed in Christ partly because his rebirth held out the
Who needs faith when you’ve got
A.devotion | B.reference | C.obstacle | D.priority |
A.possibility | B.challenge | C.pressure | D.judgment |
A.revealed | B.adapted | C.preserved | D.ceased |
A.In consequence | B.In effect | C.In contrast | D.In total |
A.relevant | B.identical | C.distinctive | D.limited |
A.creative | B.ambitious | C.previous | D.conscious |
A.relies on | B.applies to | C.sums up | D.figures out |
A.proposes | B.predicts | C.quotes | D.recognizes |
A.processed | B.admitted | C.injected | D.turned |
A.update | B.promote | C.arrange | D.detect |
A.translate | B.transmit | C.transplant | D.transform |
A.Regardless of | B.Aside from | C.Other than | D.Instead of |
A.typically | B.literally | C.instantly | D.faithfully |
A.strength | B.request | C.clue | D.promise |
A.mind | B.soul | C.broadband | D.data |
3 . How to Get Used to a New School
New surroundings, unfamiliar faces and different learning standards make the transition to a new school stressful for many students. Not only are they faced with
Research
Knowing what to
Visit
The first day at any new school often is met with nervousness and sometimes confusion. Contact the school and schedule a low-pressure trip to the building before the first day so the campus looks
Get Involved
Establish a Routine
A new school often means a new routine, including morning ig preparation, getting to school and after-school activities. Setting into a routine gives the family a sense of familiarity. With all of the changes, a daily schedule gives children some stability. The routine should
A.unknowns | B.comments | C.responsibilities | D.solutions |
A.concentrate | B.ignore | C.improve | D.expect |
A.unique | B.upcoming | C.amazing | D.individual |
A.efforts | B.characters | C.images | D.names |
A.familiar | B.attractive | C.different | D.beautiful |
A.performance | B.occasion | C.visit | D.attitude |
A.Interest | B.Research | C.Involvement | D.Belief |
A.as well as | B.such as | C.instead of | D.in addition to |
A.include | B.indicate | C.reveal | D.reflect |
A.Remembering | B.Rushing | C.Choosing | D.Planning |
9 . Science may never know what memories play on the mind of the California sea hare, a foot-long marine snail, when it eats algae — a sea plant — in the tide pools of the Pacific coast.
But in a new study, researchers claim to have made headway in understanding the simplest kind of memory a creature might form.
David Glanzman, a neurobiologist at the University of California, believes the kinds of memories that trigger a defensive reaction in the snail are encoded not in the connections between brain cells, as many scientists would argue, but in RNA molecules (分子) that form part of an organism’s genetic machinery.
In an experiment to test the idea, Glanzman implanted wire into the tails of California sea hares, and gave them a series of electrical shocks. The procedure sensitized the animals so that when they were prodded (戳) in a fleshy spout called a siphon, they contracted their gills (鳃状呼吸器官) in a strong defensive action.
After sensitizing the sea snails, Glanzman extracted RNA from the animals and injected it into other sea snails to see what happened. He found the recipient sea snails became sensitized, suggesting the “memory” of the electrical shocks had been transplanted. When Glanzman repeated the experiment with RNA from sea snails that had been hooked up to wires but not shocked, the reaction behavior did not transfer.
Despite the result, the work has not found widespread acceptance. “Obviously further work needs to be carried out to determine whether these changes can happen without failure in a wide range of conditions,” said Prof Sherilynn Vann, who studies memory at Cardiff University. “While the sea hare is a fantastic model for studying basic neuroscience, we must be very cautious in drawing comparisons to human memory processes.”
Tomas Ryan, who studies memory at Trinity College Dublin, is firmly unconvinced. “It’s interesting, but I don’t think they’ve transferred a memory,” he said. “This work tells me that maybe the most basic behavioral responses involve some kind of switch in the animal and there is something in the liquid that Glanzman extracts that is hitting that switch.”
But Ryan added that different thinking about memory was badly needed: “In a field like this which is so full of accepted beliefs, we need as many new ideas as possible. This work takes us down an interesting road, but I have a huge amount of skepticism about it.”
1. Why were the sea hares given electrical shocks?A.To rob them of their memory. |
B.To see how they defend themselves. |
C.To break the connection between nerves. |
D.To make them sensitive to external stimulations. |
A.Memory can be encoded and changed by people. |
B.Only with strong stimulation can sea snails form reaction. |
C.The memory giving rise to sea snail’s sensitization is held in RNA. |
D.The sea snail’s defense is probably enabled by connectivity of brain cells. |
A.The recipient sea snail’s response may require further confirmation. |
B.Variables (变量) in the experiments may not have remained the same. |
C.Something else other than RNA in the extract may lead to the recipient’s reaction. |
D.The sea snail “memory transplant” may not apply to more complex memory process. |
A.criticism | B.doubt | C.relief | D.optimism |
10 . The Decision That Changed My Life
We make decisions every day. Whether it is a small decision like what to wear that day or a big decision like where to go to college, these decisions have at least some influence on the rest of our lives. I wanted to talk about a decision I made that has changed my life forever.
I gave up soda about a month and a half before my trip to the Bahamas as a healthy step towards “getting in shape” for my trip. At first I thought it was going to be really hard giving it up, but after that first two weeks I wasn’t thinking about soda at all. One tiling led to another and I started eating better, working out more and just generally living a healthier life. I had already seen a difference in my life following this healthier life style.
That was because I wanted to show those who maybe thought I wouldn’t be able to do it that they were wrong. Soon the urge to drink soda somewhat disappeared and I really did not even become tempted by it by the end of the trip. I got home to the States and when I got back home I decided to weigh myself. I had lost 20 pounds on my trip!
I also wanted to give some advice for those who were in the same situation as I was, where you wanted/needed to give up something that you think you can’t live without.
A.You need a support system. |
B.I almost gave up a couple of times but stayed strong. |
C.I felt happier, more energized and just all around better. |
D.Weeks and weeks went by and I still was not missing drinking soda. |
E.I hope you are inspired by my story to give up something that is bad for you. |