Many people say they can not start their day without first having a cup of coffee or tea.People say these drinks help them think clearly and feel more awake.This is because of caffeine,a kind of matter found in some plants.Caffeine helps to give a jumpstart to the nervous system.Now a new report says it may also improve long-term memory. Michael Yassa is a neurobiology professor at the University of California.He and other researchers wanted to know if caffeine could improve what they called memory consolidation.They asked a group of individuals to learn something new,then the same people were given caffeine,the active component in coffee,tea and chocolate. He and the other researchers worked with a group of l60 people who were Caffeinefree.On the first day,all the subjects were shown pictures of everyday objects.They were asked to identify whether the pictures could be found inside the house or outdoors.Some of the subjects were then given a caffeine pill,the others were given a placebo--a pill containing an inactive thing.On the second day,all of the subjects were asked to look at more pictures.Some of the images were exactly like the ones they had seen 24 hours early.But other images were different.And a third group of pictures was similar to the first group but a little different.The participants had to decide whether the images they saw were the same or different from the ones on the first day. Professor Yassa says their answers help to show the effects of caffeine on memory.He says those who took the caffeine pills had a ten to twelve percent increase in their ability to remember the objects.The amount of caffeine the researchers used in the study was similar to one strong cup of coffee. Professor Yassa says pills with a little more caffene also increased memory,but resulted in some participants appearing more nervous. The author wrote the text in order to _ . A) forbid people to drink coffee B) report a new research of coffee C) attract readers to drink coffee D) introduce the procedure of research
B
"At least you'll be close to home!"That phrase dominated the weeks before my move to my college.I took comfort in knowing that home was close by if I needed it The night before the move,I spoke with a sophomore friend of mine who was moving back the next morning.I asked if he was sad to be leaving home and his response sparked in me an internal debate."It was nice to be back but honestly. I've come to think of the college as my home."Up until that moment,the move to college seemed like an extended version of summer camp.School wasn't a home;it was a place for me to explore when I was away from home right? As I packed my things,I really started thinking about the concept of home,and I couldn't help but wonder would I ever consider college my own home? The next day,once my bags were unpacked and my parents were gone,I took a moment to look around my dorm.It was absolutely nothing like my room...no _ ,no blue curtains and no queen--sized bed.Despite the fun I was having and things I was learning in the following Welcome Week,I couldn't bring myself to call it home.I longed for my _ .I even wanted my mom's calls."There's no place like home."I murmured. Last night,I went to visit my friends and we spent the next hour talking about that missing feeling we all shared-our families,our friends,our old lives--and soon the sadness turned to fondness.One by one our friends came in to say goodnight and the room was filled with girls,all laughing and sharing our high school experiences.It wasn't until about l:00 a.m.that I turned to my roommate,unconsciously saying,"It's getting late...we should probably go home soon."I was taken aback by my own words.Somehow in the few hours,my dorm room had turned into a home. The author mentioned the bunnies twice in the passage to suggest that _ . A) college lacked a friendly atmosphere B) she didn't get used to her college life then C) pet-keeping was not allowed in college dorm D) college should prepare bunnies for new students
B
(Q).
Little Robby, our neighbour's nephew, carefully drew some water into a bowl and started for the door. How I hated this water rationing . We were forced to bathe in the deep little pond we shared with Jessie, our cow. Wells were dry, and crops transformed to dust. I watched Robby sitting down onto the steps to my house. Bees buzzed circling his hair, and he buzzed with them. I remembered his aunt's words: I don't know what I was thinking when I took him in. The crash killed my sister, and he wasn't hurt, but he can't talk. He's in a world of all his own. Why couldn't she see _ this boy possessed? He was blessed with a loving nature and a deep admiration for all living things, and I knew he could talk to animals. My heart ached for Robby, who was to stay with us for the summer, and had already been the dearest part of our world, eagerly tending the garden with me and my husband, Tom. On a string around Robby's neck hung a whistle, in case he was ever lost or in danger. After all, he could not call out for help. But he knew perfectly well that the whistle was not a toy. Blowing on it would bring us both running. I had told him the story of the boy who cried wolf, and I knew he understood me. I sighed as I cleared up the last supper dish. Every ounce of recycled water was saved for a tiny vegetable garden Robby had planted. Tom turned to me. "You know, honey, I've been thinking about..." Before he could continue, a scream from the yard made us jump. My God! It's Robby's whistle! When we reached him, he was pointing excitedly to the sky. Looking up, we saw the most magnificent sight: Rain Clouds! "Robby! Quick! We need all the pots and pans!" Robby raced with me to the house. A drop of water fell on my pot and then another. Soon the yard was enveloped in soaking, glorious rain. We all stood with faces held upward to feel the comfort of it. Tom picked up Robby and danced about the pots, shouting and whooping, "Rain for Robby!" Tom swung about to show me Robby's face: he was laughing right out loud, "W-W-Wobby's!"... What can we learn from the passage? A) Robby was old enough, but still couldn't speak. B) Robby's aunt regretted bringing Robby home. C) Robby didn't accept the author and Tom as his parents. D) Robby happened to find the rain cloud and was terrified.
(A).
B