Picture the scene: the battery on your mobile phone has run out． You can't make any calls for help and no one can contact you． You are all alone - well, not quite． Just reach into your pocket and take out a piece of sugar．Put it into the battery, wait a minute, and you're back on the phone．
Thanks to a couple of American scientists, this situation could become real．Swadesh Chaudhuri and Derek Lovely have invented the"bacteria battery" - powered by bacteria that eats sugar and turns it into electricity．
"This is a special organism," Lovely said．"You can harvest enough electricity to power a cell phone battery for about four days from a spoonful of sugar．"
In the past, bacteria batteries have been expensive and not long-lasting． But this battery uses more efficient bacteria that can turn 80 percent of sugar into electrical energy． This is 30 percent more than similar batteries can manage．
The bacteria battery could become as small as a household battery． It's also cheap and stable, as sugar can be taken from waste and crops．
But the sugar to electricity process is slow: it could take weeks for the bacteria to digest a cup of sugar．And it produces "greenhouse" gases which pollute the environment．
The scientists understand there is a lot more work to be done． "It is still young," said Lovely．"Where we are now is where solar power was 200r 30 years ago．"
But he believes the battery could be used in scientific equipment at the bottom of the ocean．Other ideas include using sugar in the blood to run medical devices in the human body, and taking sugar from animal waste to provide energy to power homes in rural areas．
1.This passage is mainly about_ ．
A． how to change sugar into electricity
B． a scientific invention of a new kind of bacteria battery
C． a new way to reduce pollution caused by mobile phones
D． a new kind of mobile phones and its future
2.Which of the following is not the strong point of the newly-developed battery?
A． Convenient． B．Stable． C． Inexpensive． D． Quick．
3.The underlined sentence in the 7th paragraph actually means ．
A． the bacteria battery shares some similarities with solar energy
B． scientists will continue their work until they find solar power
C． there is much room for the improvement of the bacteria battery
D． the bacteria battery will get popular in 20 0r 30 years
4.According to the passage, who will find the bacteria battery less useful?
A． Farmers． B． Divers． C． Doctors． D． Electricians．
Woman Uses Daughter's Key to "Steal" Car
Charlie Vansant, a college student of Athens, Ohio who reported that his car was stolen, got a surprise when he learned a woman had mistaken it for her daughter's car and taken it－using her key．
Kate Anderson became an accidental car thief when picking up her daughter's car near an Ohio University building last week．Anderson spotted the nickel-~ay Toyota Camry（银灰色丰田凯美瑞）and used her daughter's key to unlock the car, start the engine and drive home-without realizing that the car wasn't her daughter's．
When Charlie Vansant left class a short time later, he found only an empty parking spot．He first assumed the car had been towed, but when the police couldn't find a record of it, they took a theft report．
The morning after Anderson took the car, her daughter discovered the Camry in the driveway wasn't hers．Anderson said she was able to find Vansant's name on paperwork in the glove compartment and look up his phone number on the website for the university．
When Anderson told Charlie the car was in her driveway, "It sounded real suspicious at first, like may be she wanted to hold the thing for ransom（赎金）,”said Vansant．He eventually went to the house with a police officer, where he was reunited with his car．According to police report, the ease was closed "because of mistaken car identity", Anderson wasn't charged．
Vansant seemed to blame the car company more than the "thief"．"Her key fit not only my lock, but my ignition（点火装置）as well - so high-five for Toyota．I guess．" he said．
1.What does the underlined word "towed" mean in paragraph 3 ?
A．removed B．damaged C．stolen D．sold
2.Which of the following is NOT true according to the passage?
A．Mrs．Anderson's daughter discovered the car her mother drove was not hers．
B．Mrs．Anderson stole Charlie's car at the request of her daughter．
C．Charlie had thought he had to give Anderson money to get his car back．
D．Mrs．Anderson used her daughter's key to unlock Charlie's car and drive home．
3.What does Charlie mean by "h~-five for Toyota"?
A． He is blaming Toyota for the poor quality of car keys．
B． He should thank Toyota for returning his car．
C． He wants to celebrate with Toyota for getting his car back．
D． He thinks highly of Toyota for producing large quantities of cars．
4.What is likely to happen next according to the passage?
A．Mrs．Anderson was charged with stealing a car．
B．Charlie blamed Mrs．Anderson for mistakenly taking his car．
C．Charlie would ask the Toyota Company to give him an explanation．
D．The Toyota Company would give Charlie a new car as compensation．
某海外学校举办英语训练营，开设了以下课程：园艺（gardening），烹饪（cooking），防身术（self-defense），护理（nursing ）。假设你是李华，写封申请信，报名参加其中一门课程的学习。
内容要点：1. 你感兴趣的课程；2. 你期望从中学到什么；3.为什么想学这些内容
Dear sir /madam,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写得以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加，删除或修改。
增加： 在缺词处加一个漏字符号（ ∧ ），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改： 在错的词下划一横线，并在该词下面写出修改后的词。
注意： 1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不记分。
The environment pollution is more and more seriously today. We have no clean water to drink it because of water pollution. And when trees cut down, some animals disappear. There was more and more dirty smoke in the air. People’s health has been greatly affecting by air, noise and water pollution. Many people have died of disease caused by pollution. In order to live t
he better life, it’s time for us to protect our world.
Firstly, we shouldn’t throw away rubbish everywhere. And we should recycle, reduce and reuse things, what saves money and reduces pollution. Use things so long as possible. Don’t use plastic bags. Besides, we must plant more trees and stop people cut them down. We hope our world will be more and more beautiful.
阅读下面短文，根据上下文填入适当的词语，或使用括号中的词语的适当形式填空。
On keeping a Diary in English
Keeping a diary in English is one of the 1.___ __ (effect) ways to improve our English writing ability.
2.______ (compare) with other forms of writing, it is shorter and takes 3.______ time. It can help us to develop the habit of thinking in English. 4.______ we persist in t
his practice, gradually we’ll learn how to express ourselves in English. In keeping a diary in English, we certainly run up against many 5.____ __（difficult）. In the first place, 6.______ often happens that we have trouble 7._________(find) appropriate words and phrases to give expression to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And it is extremely
hard for us to put them into English properly.
As far as I 8.____ __ (concern), my suggestion is that we should always have a notebook and a Chinese-English dictionary within easy reach. Whenever something beats us, we can first put it down in our notebook and then consult our dictionary. We can also turn to our English teacher for help, if necessary. In short, I believe that it is 9.______ great use to keep a diary in English for 10.______ development of our writing skills.
This was my grandmother's first Christmas without grandfather, and before he passed away we had promised grandfather that we would make this her best Christmas ever. When my parents and I at her house, we found she had waited up all night for us. The house did seem a little without grandfather.
Grandfather had always said that the Christmas was the most important decoration of all. So we immediately set to work on the beautiful artificial tree that was stored in grandfather's closet (壁橱). Through our efforts, we finally stepped back to our handiwork. It looked beautiful. something was missing.
"Where's your star?" I asked.
The star was my grandmother's favorite part of the tree.
"Why
, it be here somewhere," she said, starting to sort through the boxes again. "Your grandfather always everything so carefully when he took
the tree down."
As we emptied the boxes and no star, my grandmother's eyes filled with tears. Grandfather had given it to grandmother some fifty years ago on their first Christmas together. It brought them great happiness. Now, on her first Christmas without him, the star was , too.
"Don't worry, Grandmother," I her. "We'll find it for you."
My mother and I formed a search . "Let's start in on the closet where the ornaments (装饰品) were," Mother said. "Maybe the star just fell out of the box."
That sounded , so I began to search the closet. I thought I tried every , but no star. I could see grandmother was , although she tried not to show it.
"What’s in this wrapped box?” Mother suddenly called out. "It was at the bottom of father’s closet."
Grandmother took the box in and opened it. Her face when she unfolded the paper and pulled out a golden star. There was a(n) attached.
Don't be angry with me, dear. I broke your star while packing the decorations, and I couldn't to tell you. Thought it was time for a new one. I hope it brings you as much as the first one. Merry Christmas!
Love,
Bryant
So grandmother's tree had a star after all, a star that expressed their everlasting love for one another. And we were glad we were able to make this Christmas for her.
1.A. arrivedB. looked C. stayed D. worked
2.A. noisy B. emptyC. safeD. clean
3.A. flower B. bell C. stocking D. tree
4.A. admireB. repairC. paintD. design
5.A. Or B. SoC. ButD. And
6.A. mightB. must C. need D. will
7.A. packed B. decided C. covered D. searched
8.A. made B. leftC. found D. felt
9.A. gone B. hidden C. brokenD. forgotten
10.A. warnedB. persuadedC. reminded D. comforted
11.A. gameB. class C. company D. party
12.A. challengingB. reasonableC. pleasantD. difficult
13.A. suggestion B. directionC. possibilityD. method
14.A. ashamedB. shockedC. disappointedD. frightened
15.A. fear B. reliefC. angerD. surprise
16.A. clearedB. brightenedC. darkened D. tightened
17.A. article B. note C. receiptD. poem
18.A. bear B. affordC. wait D. agree
19.A. peace B. changeC. luck D. joy
20.A. special B. funnyC. relaxingD. favorite
