根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。
iPads vs. Textbooks
What if you could have your whole backpack at the touch of your fingertips? In the first month of the Apple iPads release, 25million were sold! People all over the world use iPads for all sorts of different things, but one of their finest qualities is the ability to be a textbook.1.
To begin with, iPad are less expensive. Textbooks become outdated and schools have to buy new books, but with an iPad schools can update them for free.2.Schools don’t have to spend $500 every year for iPads because they last a while and can be updated.
3.Students usually have multiple classes, which results in multiple textbooks. Heavy backpacks filled with books can cause back problem. A solution to that is an iPad, which only weighs 1.33 pounds and can hold all of a student’s textbooks.
Third, schools should get rid of their textbooks and get iPads because they have more capabilities. Some might think all of the apps are distracting, but the apps actually make iPads more efficient.4.Textbooks cannot do those tasks, but iPads can easily do them with just a tap of the fingertip.
Lastly, iPads are a better choice for schools instead of textbooks because these devices allow students to access their learning anywhere at any time.5..With iPads, they find it easier to get their homework done.
In conclusion, schools should get rid of their clumsy textbooks and switch to iPads. iPads have allowed this generation to have their entire backpack in the palm of their hands.
A. Second, iPads cost less and are more popular.
B. These tablets are perfect for busy students.
C. Therefore, they can use the saved money for other programs.
D. Moreover, in high school, textbooks have an average of 4.8 pounds each.
E. iPads have already replaced textbooks in over 600 American counties.
F. iPads absorb the need to buy calculators, dictionaries, and other items that are found within the device.
G. Schools have every reason to do away with their school books and switch to iPads.
Can eating a chocolate bar every day really prevent age-related memory loss? No. But a new research shows that large amounts of flavones(黄酮), substances found in cocoa, tea and some kinds of vegetables, may improve age-related memory failure.
Dr. Scott Small is a professor of neurology (神经学) at Columbia University in New York City. He is the lead writer of a research paper describing the effects of cocoa flavones on brain activity. His study involved 37 volunteers aged between 50 and 69. Researchers gave them a high-level flavones drink made from cocoa beans or a low-level flavones drink. For a period of three months, some subjects got 900 milligrams of flavones a day. The others got 10 milligrams of flavones each day. Brain imaging and memory tests were given to each study subject before and after the study. Dr. Small says that the subjects who had the high-level flavones drink showed much improvement on memory tests.
The researchers warn that more work is needed to be done because this study was performed only on a small group. Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavones capsules. The study subjects will be divided into two groups and will take two pills per day. The capsules used will all look the same. But one group's capsules will contain flavones, while the other group will take capsules made of an inactive substance, or placebo(安慰剂).
Dr. Manson says it's not necessary for people to start eating more chocolate, because 3 persons would have to eat a huge amount of chocolate to get the same level of flavones given to the rest subjects. He adds many manufacturers have planned to remove the flavones from their chocolate products. Similarly, Dr. Manson says a cocoa-based flavones extract(提取)may be developed in the future But he says that more studies are needed to see how much flavones is good for our health.
1.What was done to the subjects after Dr. Small's study?
A. They were asked to take a high-level flavones drink.
B. They were given brain imaging and memory tests.
C. They were given capsules containing flavones.
D. They were asked to take two pills of flavones capsules per day.
2.What's the similarity of the two experiments?
A. Both use high-level flavones capsules.
B. The number of the subjects is the same.
C. Drinks and placebos are used in both experiments.
D. The subjects are divided into two groups in both experiments.
3.Why will Dr. Manson carry out the four-year study?
A. To carry out the experiment further.
B. To prove the first experiment is wrong.
C. To test how much flavones can improve our memory.
D. To show eating chocolate is better to improve memory.
4.What can we learn from the last paragraph?
A. It's not necessary for us to eat chocolate.
B. In the future we can get flavones without eating chocolate.
C. The more we eat flavones, the better our health will be.
D. It's easy for people to get the same level of flavones given to the test subjects.
“Well, I finally did it. I finally decided to enter the digital age and get a cell phone. My kids have been annoying me and the last straw was when my car broke down, and I was stuck by the highway for an hour before someone stopped to help. But when I went to the cell phone store, I almost changed my mind. The phones all have cameras, computers and a “globalpositioning” something or other that's supposed to spot me from space. Goodness, all I want to do is to be able to talk to my grandkids! The people at the store weren't much help. They couldn't understand why someone wouldn't want a phone the size of a postage stamp. And the rate plans! They were confusing, and expensive…and the contract (合同) lasted for two years! I'd almost given up until a friend told me about her new Jitterbug phone. Now, I have the convenience and safety of being about to stay in touch with a phone I can actually use.”
Affordable plans that I can understand—and no contract to sign! Unlike other cell phones, Jitterbug has plans that make sense. Why should I pay for minutes I'm never going to use? And if I do talk more than I plan, I won't find myself with no minutes like my friend who has a prepaid phone. Best of all, there is no contract to sign—so I'm not locked in for years at a time. The USbased customer service is second to none. And the phone gets service anywhere in the country.
Call now and receive a FREE gift when you order. Try Jitterbug for 30 days and if you don't love it, just return it! Why wait, the Jitterbug comes ready to use right out of the box. If you aren't as happy with it as I am, you can return it and get your money back. Call now, the Jitterbug product experts are ready to answer your questions.
Call 18888098794 or visit www.jitterbugdirect.com.
Monthly Minutes | 50 | 100 |
Monthly Rate | $14.99 | $19.99 |
911 Access | FREE | FREE |
Long Distance Calls | No additional charge | No additional charge |
Friendly Return Policy | 30 days | 30 days |
1.What made “I” finally think of getting a cell phone?
A.Being stuck by the highway.
B.Being urged by his grandkids.
C.Being persuaded by cell phone salespersons.
D.Being attracted by the friendlyreturn policy.
2.On the monthly basis of 100 minutes, the Jitterbug weekly rate is about ________.
A.$19.99 B.$14.99 C.$4.99 D.$3.75
3.An advantage of Jitterbugmentioned in the passage is ________.
A.its discount price with a free gift
B.its “globalpositioning” system with 911 access
C.its reasonable rate plans without a contract
D.its good customer service all over the world
4.The main purpose of the passage is to ________.
A.tell a customer's story of Jitterbug
B.provide two ways to order Jitterbug
C.give a brief introduction of Jitterbug
D.attract potential customers to Jitterbug
A paperclip,made of steel wire bent into a looped (环形的)shape,is an instrument used to hold sheets of paper together.This common device is a wonder of simplicity and function.But where did this simple,cheap,and practical invention come from?
In the late 19th century,the most common way to hold papers together was by using a pin.Although the pin was an inexpensive tool and was easily removable,it would 1eave holes in the paper. Later,as steel wire became more common,inventors began to notice its elastic(有弹性的)feature. With this feature,it could be stretched and twisted into various clip—like objects.In the years just before 1900,quite a few paperclip designs appeared.The name most frequently associated with the paperclip invention is Johan Vaaler,a Norwegian inventor. However, Vaaler’s clips were not the same as the paperclips currently in use.Specifically,they did not have the inside loop we see today.The familiar looped design was invented by Gem Manufacturing Ltd.in England.This clip is therefore sometimes known as the Gem clip.
Because of Vaaler,the paperclip played an important historical role in Norway.During World War II,Norway was occupied by the Nazis.Norwegians were prohibited from wearing any symbol of their national unity(团结),such as buttons with the initials of their king.Thus,in protest,they started wearing paperclips to show their unity.The reason for doing this was simple:Paperclips were a Norwegian invention whose original function was to bind together.After the war,a giant paperclip statue was put up in Oslo to honour Vaaler—even though his design was never actually produced.
1.According to the first paragraph,the paperclip is________.
A.made of paper
B.shaped like a pin
C.inexpensive and useful
D.for holding clothes together
2.One way the paperclip is better than the pin is that_________
A.it is cheaper
B.it is simpler
C.it can be removed more easily
D.it doesn’t damage the paper
3.Which of the following best shows what the Gem clip looks like?
4.The last paragraph is mainly about_________.
A.how Vaaler’s clip became a national symbol
B.how widely used Vaaler’s clip is
C.how the Nazis ruled the Norwegian people
D.why Norwegians had the initials of their king on their buttons
假设你是李华,在互联网上看到英国高中生David登的一则启事:希望结识一位中国朋友,以便学习中国的语言、文化。请你以李华的名义用英文给David发一封电子邮件,主要内容包括:
1.你怎样得知David的愿望;
2.你愿意成为他的朋友;
3.你打算如何帮助他;
4.你盼望他的回复。
注意:(1)电子邮件的格式已为你写好,不计入总词数; (2)词数:100左右。
Dear David,
I’ve learned____________________________________________________
Yours sincerely,
Li Hua