Many people rely on a cup of coffee or two to wake them up in the morning or refresh them during the working day, but now a chemist has come up with a speedy alternative to drinking coffee.
U.S. biochemist Ben Yu has created ‘Sprayable Energy’, which claims to be the world's first caffeine - based topical energy spray.
He said tired workers can spray a 'shot' of caffeine onto their skin without experiencing a strong noise, taking in unnecessary calories or being stuck with a nasty aftertaste like they might get from drinking energy drinks or coffee.
The tasteless caffeine spray is absorbed through the skin and spread through the body over a number of hours to deliver a caffeine hit that lasts longer than drinking a cup of coffee. The only active ingredient in the spray is caffeine, which is very similar to nicotine in structure. Each spray ‘Sprayable Energy’ contains around a quarter of the amount of caffeine found in a cup of coffee, but apparently has the same effect as a full cup.
The website said: “The reason for this is our product isn't entirely metabolized(新陈代谢) by the liver before entering your system and becoming available to your body.” Sprayable Energy's website recommends that users apply the spray in places where they normally spritz perfume, such as wrists, the neck or behind the ears, but warns users not to exceed 20 times a day.
It claims that after spraying the product on the skin, users will feel awake and focus without being over-excited, which is common with coffee and energy drinks.Compared with an energy drink or a coffee, what is good about “Sprayable Energy”?
| A．It makes no noise. |
| B．It contains lower calories. |
| C．It has a good taste. |
| D．It contains many active ingredients. |
Which of the body may not be suitable to apply “Sprayable Energy”?
| A．The neck. | B．Behind the ears. | C．Wrists. | D．Mouth. |
What can we infer from the text?
| A．“Sprayable Energy” contains caffeine as well as nicotine. |
| B．The liver can metabolize in caffeine before it enters your system. |
| C．Whenever you feel tired, you can spray the product. |
| D．After spraying “Sprayable Energy”, you’ll get rid of tiredness. |
How can you create a great science fair project？．You can start by asking yourself some
questions．
What is interesting to me?
You can connect ainroot any topic to science, Your topic could be plants, worms,dogs，the sky or something else．If you can not think of a topic，search books or the Internet for ideas .Seek help from your teacher or a librarian．Your parents may have some good thoughts too．
What question do I have about this topic?
A great science project always includes an experiment．Make sure that your question can be
answered through an experiment．Here are some examples of questions：Does the amount of light have an effect on how fast plants grow？How much salt is in different kinds of cookies sold at the store? Why does the sky change color at different times of the day?
How much time do I have before the scienc fair?
A great science project always includes an experiment. Make sure that your question can be answered throuth an experiment, Here some examples of questions,Does the amount of light have an effect on how fast plants grow? How much salt is in different kinds of cookies sold at the store? Why does the sky change color at different times of the day?
How much time do I have before the science fair?
A science fair to be held in two weeks will not give you time for some experiments ,such as growing plants, carefully plan your project so that you allow enough time to perform your experiment accrately.
What do I think is the answer to my question?
Why do I think this? The answer you choose is your hypothesis,You will prove it right or wrong by perfoming an experiment,. If you were to think about the sky question, your hypothesis might be that the color of the sky is related to the position of the
sun,
How can I prove my hypothesis?
This is where the experiment comes in．You have to test your hypothesis．If you wanted to find out how light affects plant growth，you could plant seeds in a number of containers．Then you could expose the plants to different amotmts of light and compare the growth rates．
How can I present my results?
You might display your question and hypothesis on poster boards．You might then add pictures and graphs．A great science project also states a conclusion．A conclusion of the plant experiment might be The plants that got the most light grew the fastest．
When you have finished your project，you may have more questions．A great science project makes you want to learn even more．
64．A great science project always includes ．
A．plants in pots B．results
C．an experiment D．poster boards
65．A hypothesis is a(n) ．
A．question
B．idea C．performance D．proof
66．We can learn from the passage that ．
A．all science projects take about the same amount of time
B．a science project involves several step
s
C．a science project should start with a conclusion
D．a science project raises many questions
67．To find out whether cold water freezes faster than hot water,you would first ．
A．make a chart to explain your steps
B．state your conclusion to convince other people，
C．think of an experiment to give an answer
D．display your hypothesis to prove
第三部分：阅读理解(共20小题；每小题2分，满分40分)
The Times(January 8，2008)一A climber was left hanging over a 500 ft cliff for more than seven hours in temperatures below zero as his companions looked on helplessly．
After setting out at dawn to make what they thought was straight forward ascent(垂直攀爬) in the Caimgorrns．one of the three friends suddenly slipped and then was 150 ft backwards into a gully(沟壑)．The only thing that stopped the climberfalling to his death wast he safety line fixed to his friends．
They stayed on an icy rock face at 2，500 ft．All they could see wash is head torch shining in the darkness and they had to shout down in turns to make sure that he was still alive．By the time .they were airlifted off the mountain just after midnight,the temperature had fallen to—20 ℃ and heavy snowstorms were setting in．Surprisingly,none ofthe three was seriously hurt．
The group had left their car at 8：30 am for the expedition which was expected to end with an 800 ft climb called Kiwi Gully in an area known as Hell’s Lure to the west of Lock Avon．Generally,there will be few problems for experienced climbers but it had become very harder after heavy snowfalls．Just before 4 pm the climbers reached a narrow part beneath a steep section of rock．Two of the party made it to the ice．Having got through the steepest section,he slipped when the ice suddenly gave way．He was left hanging and couldn’t climb back up because he had damaged his ankle and was in shock．
At 8 pm a team of ten rescue workers was dropped on a snowy place 300 ft above the climbers．One of the team was lowered to where the climbers were trapped．During a four-hour operation，they were saved．Thirty minutes later snowstorms enveloped the mountain．
56．The climber didn’t climb back up because ．
A．the safety line was easy to break B．he was too frightened to climb
C．he was shocked by some animals D．his damaged ankle prevented him climbing
57．Which of the following about the rescue work is TRUE?
A．Ten people were sent to rescue the climbers at dawn．
B．The work lasted about four hours ．
C．It was the workers that lifted the climber up．
D．The three climbers were seriously hurt during the work
58.According to the passage, it was implied that the person hanging over a cliff was ．
A．a climbing learner B．a clever climber
C. an experienced climber D．a climbing guide
59．What will be the best title for the passage?
A．Climber Saved After Hanging for 7 Hours
B．An Unforgettable Climbing Experience
C．Time is Life for Climbers
D．Climber Left Hanging over a Cliff
Bring the Family?
Port Regisis well situated for exploring the beautiful South and West of England and Wales．
The school has excellent hotels and guest houses nearby for parents who are dropping off or collecting their children from the school．
Please note：
All students at
tending English Country Schools must live in the appointed place．
We do not recommend that parents live locally while their child is at school．Experience suggests that this often upsets the child and disturbs progress．
Howard’s．House Country Hotel ＆Restaurant
About l5 minutes from Port Regis School，Howard's House is set in large gardens hidden in
the quietness of the lovely Nadder Valley．
Plumber Manor
Plumer Manor is a comfortable manor house built of local stones，situated about 20 minutes
from Port Regis School．The 17th century house is mounded by lawns and is set in quiet Dorset
countryside．The stream tuns through the grounds．
Woodville Farm Bed＆ Serf-catering
Woodville Farm is a family-runfarm set in the Dorset countryside about 5 minutes from
Port Regis School．Bed and breakfast accommodation：one double bedroom & one twin bedroom
both with bathrooms，tea & coffee making facilities，color television & hairdrye.There is also a
self-catering 2-bedroom bungalow(平房)nearby．
Stock Hill Country House Hotel ＆ Restaurant
Stock Hill Country House Hotel ＆ Restaurant is a late Victorian building set in eleven
acres of mature，beautifully planned grounds on the borders of Dorset，Somerset and Wiltshire．
About 10 minutes from Port Regis School．
60．The passage is main
ly writen for
A．students B．general readers
C．paints D．overseas trayelers
61．Parents are advised not to live locally when children are having classes because．
A．children are not too excited to be with their parents
B．parents stay with their children for too long
C．their visit makes children uneasy about themselves
D．their stay there affects children’s studies
62．If you prefer to live in a stone house，which hotel would you choose?
A．Plumber Manor．
B．Woodville Farm Bed＆Self-catering
C．Heward House Country Hotel & Restaurant．
D．Stock Hill Country House Hotel & Restaurant．
63．Woodville farm is different from other hotels in that．
A it is hidden in a large garden B．guests can cook their own food
C．it dates back to Victorian times D．it has a very beautiful country scenery
Dog walkers provide a 20 to 60-minute daily walk for a client’s（客户）dog, making sure the dog answers the call of nature and gets proper exercise. They often walk more than one dog at a time. Some walkers work for dog-walking services, especially when starting out. Others have their own businesses, and build by word of mouth and advertising. Dog walkers often work part-time, and some provide other services like pet sitting or transporting.
In N.Y.C., dog walkers usually earn about $25 an hour. If you work for a dog-walking business, you may earn less-if you are on your own dealing with several dogs at the same time, it may be more.
What do you have to do to be a dog walker?
First, have a real love of dogs, and have a good knowledge of how to get on with dogs. Try calling dog-walking services to find out about openings. If you’re on your own, you’ll need to network and market yourself. You might advertise your services in pet offices, grooming businesses, or neighborhood papers. You will need business cards and a mobile phone, and have good references and a clean background. You’ll also have to deal with taxes and insurance. You should be physically fit, friendly, neatly dressed and extremely dependable. Many dog walkers are bonded（被担保的）and insured, and this is a definite selling point to clients.
Of course, you will be cleaning up dog waste! You will also be outside in all kinds of weather. You may have to deal with dogs that don’t like each other ,and difficult owners. It’s also an up and down kind of business-clients can come and go.
For pet lovers, spending the workday with dogs instead of navigating office politics is its own reward! You are your own boss-you can dress casually, your doggy clients will love you unconditionally, and you’ll get some great exercise!
71. By writing the passage the writer tries to.
A. introduce you to a job B. enrich your knowledge about pets
C. advertise for a business D. tell you more about life in New York
72. The passage offers no information about how toas a dog walker.
A. find a client B. train a dog
C. get prepared D. make more money
73. One who wants tomay find the passage helpful.
A. take up a weekend job B. keep a good pet dog
C. make money in his daily spare time D. be a part-time office worker
74. The last paragraph but one (beginning with “Of course”) is meant to tell you.
A. what dog-walking is like B. why dog-walking is worth trying
C. the unknown part of dog-walking D. the bad side of dog-walking
75. What does the underlined word casually in the last paragraph possibly mean?
A. as you like B. like a boss
C. in a dog-friendly way D. in nice clothes
A study published Monday found that people who sleep less tend to be fat, and experts said it’s time to find out if more sleep will fight fatness.
“We’ve put so much emphasis on diet and exercise that we've failed to recognize the value of good sleep,” said Fred Turek, a physician at Northwestern University.
Monday’s study from Eastern Virginia Medical School in Norfolk covered 1,000 people and found that total sleep time decreased as body mass index - a measure of weight based on height - increased.
Men slept an average of 27 minutes less than women and overweight and fat patients slept less than patients with normal weights, it said. In general the fatter subjects slept about 1.8 hours a week less than those with normal weights.
“Americans experience insufficient sleep and fat bodies. Clinicians are aware of the burden of fatness on patients,” the study said.
“Our findings suggest that major extensions of sleep time may not be necessary, as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index,” it added.
“We caution that this study does not establish a cause-and-effect relationship between restricted sleep and fatness (but) investigations indicating success in weight loss via extensions of sleep would help greatly to set up such a relationship.”
The study was published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass commenting on it and related research.
In an interview, Turek said some studies have shown sleep causes declines in an appetite suppressing protein hormone, and increases in another hormone that causes a longing for food. In addition neuropathies（神经疗法）in the brain governing sleep and fatness appear to overlap（重叠）, he said.
Patness has been rising dramatically in developed countries and reached epidemic（流行病） levels in the United States, it added, leading to a variety of health problems.
66. What’s the passage mainly about?
A. People who sleep less tend to get fat.
B. Fat people need lots of sleep to lose weight.
C. Sleeping has nothing to do with fatness.
D. Fatness has been rising dramatically in developed countries.
67. According to the passage, which of the following is TRUE?
A. Lack of sleep causes declines in a desire limiting protein hormone.
B. Americans experience sufficient sleep and fat bodies.
C. The findings suggest that major extensions of sleep time may be necessary.
D. Fatness has been rising dramatically in America.
68. Which of the following is NOT close to the underlined word suppress?
A. limit B. restrict C. accept D. control
69. According to the passage, which of the following people is the lowest possible one to get fatness?
A. Americans B. Chinese C. Japanese D. English
70. We can conclude the attitude of the author isaccording to the passage.
A. worried B. uninterested C. critical D. optimistic