Researchers Jose Cordova and Erich Astudillo have discovered a new molecule(分子) that kills the bacteria Streptococcus Mutans, long known to be responsible for breaking down sugars in food in the mouth, which damages tooth leading to decay(腐烂). The new molecule they call “Keep 32” has been found to kill the bacteria.

The two have applied for a patent(专利) on their discovery and have also begun a marketing strategy aimed at both oral care products and food products. They say either product, if left in the mouth for just 60 seconds ,will kill all the harmful bacteria in the mouth and keep them at bay for several hours. If the new molecule passes health and safety tests, the two believe products using their new molecule should be on the market in as little as a year and a half. They expect the market for such a product to reach $300 million in just the first year.

The two have been working together since 2005 using money from the Founder Institute and say the aim is to approve the process for creating the molecule they’ve discovered for big companies like Procter & Gamble, Colgate even candy companies such as Hershey’s. In interviews, Astudillo has suggested that the two researchers are already heavily into discussion with several companies, some of which are interested in buying the patent once it is approved.

Over the years many products have come on the scene with announcement of reducing tooth decay and even the loss of teeth, but other than the introduction of fluoride(氟化物) into drinking water, not much progress has been made. If the announcement made by this new team proves true however, it could foresee a mark in saving the world of tooth decay as well as helping to improve the health for millions of people as tooth decay has been linked to many other health problems throughout the body including heart attacks.

1.The underlined word “them” in Para. 2 refers to _________.

A. oral care products B. food products

C. new molecules D. the harmful bacteria

2.The phrase “come on the scene” in Para. 4 is closest in meaning to __________.

A. performed B. occurred

C. existed D. arrived

3.What has been a way to reduce tooth decay and even the loss of teeth over the years?

A. Using the molecule “Keep 32”.

B. Killing the bacteria Mutans.

C. Introducing fluoride into drinking water.

D. Cooperating with some big companies.

4.This passage mainly tells us that ___________.

A. many health problems are closely connected to tooth decay

B. the discovery of a new molecule will greatly benefit health care

C. two researchers are discussing their patent with companies

D. researchers discover a molecule that can kill tooth decay-causing bacteria

ORTOTROT? I heard that word while studying in Australia. It is a local language for “Are you ready (to go)?”. And at Sydney Airport, I asked the way to the train station and a man told me“Go ask that “bloke” over there.” “Bloke” is used in Australia and refers to a person. “Day” and “die” sound almost alike and since “a”, “i” and “o” all sound almost the same, I have always told my Australian friends, jokingly, that they only need 24 letters, and not 26 like the rest of us do.

Australian English began to be different from British English in 1788 and has many words that some consider unique (独特的) to the language, such as outback, meaning a remote, sparsely-populated (人口稀少的) area. Early settlers from England brought other similar words, phrases and usages to Australia. “Bonzer”, which was once a common Australian word meaning “great” or “beautiful”, is thought to have been an American term. The American influence on language in Australia has come from pop culture, the mass media (books, magazines and television programmes) and the Internet. Australian English is most similar to New Zealand English for their similar history.

Words of Irish origin are used, some of which are also common elsewhere in Irish, such as “tucker” for “food”. Some native English words whose meanings have changed under Irish influence, such as “paddock” for “field”, which has exactly the same meaning as the Australian “paddock”are still in use.

1.According to the passage, we know Australian English .

A. has special characters

B. is a kind of old language

C. is very difficult to learn

D. is the same as British English

2.Why did the writer tell his Australian friends they only need 24 letters?

A. Because Australians never use “a” or “i”.

B. Because Australians speak very easy English.

C. Because there are 3 letters having similar pronunciation.

D. Because there are some different ways to call the same thing.

3.Australian English is most similar to New Zealand English because .

A. they learn from each other

B. they have similar history

C. the two countries have the same political system

D. people from the two countries often travel to each other’s country

4.The American influence on Australian English comes from the following EXCEPT .

A. pop culture B. the Internet

C. computer software D. the mass media

When Nancy Lublin got $5,000 from her grandpa in 1996, she never once considered taking a vacation or paying off student loans .Instead, the 24-year-old New York University law student began thinking about helping low-income women get better jobs."If a woman goes for a job interview poorly dressed, she won't get the job." Lublin says.“ But without a job, she can't afford suitable clothes."

So with the money Lublin founded "Dress for Success” and began collecting women's clothes which were still in good condition but which their owners no longer needed."So many women have clothes lying around that they will never wear again," one of Lublin's assistants says "Nancy's idea is so simple and yet so important to women."

Many women come to Lublin's office before going to a job interview.Here, they receive a suit, shoes and any other things they need, Since it was set up, more than 1,000 women have turned to "Dress for Success" for help.Many of them have won jobs.Some have round jobs after being out of work for many years.Jenny, a 32-year-old woman who was recently hired as a law-firm office manager says, "I made a good impression because of “Dress for Success”

1.What can we learn from the text?

A.Nancy's grandfather lent her the money to set up the office.

B.Nancy set up "Dress for Success" to make money

C.Low-income women can get jobs at "Dress for Success"

D.Nancy's office gathers used clothes from women

2."Dress for Success" attracts many women because they_______

A.need to look smart when looking for a job

B.like the design of the dresses

C.prefer buying clothes at a low price

D.like to wear different clothes.

3.From what Jenny says, we know that ______.

A.clothes from Nancy's office helped to get her a job.

B.she is working happily at her present job

C.she got a lot of good ideas from Nancy

D."Dress for Success" has a good business relation with her firm.

4.What would be a good title for the text?

A.Keep Your Old Clothes

B.A Successful Clothing Business

C.Nancy: A Successful Law Student.

D.A Helping Hand for Women

Children in the United States eat too much pizza that some researchers now argue the food should join the ranks of sugary drinks and fast food for the harm they do to health.

In a new study, the researchers found that pizza is a large source of calories, saturated fat(饱和脂肪)and salt in children’s diets.Children should not eat more than two slices of pizza for a meal.and should pair that with salad, rather than with another high-calorie food,the researchers concluded.

“Parents should aim to control pizza consumption(消费), particularly as a snack where it was shown to have a very adverse impact on children, and they should put their pizza dollars toward healthier brands.” said Lisa Powel, director of the Illinois Prevention Research Center.

Pizza has become a matter of focus in recent years for researchers who look at the meals children eat, rather than the nutrients within them.Studies have found pizza is among the greatest sources of calories for children.

“Since pizza remains a common part of children’s diet, we need to make ‘healthy’ pizza.”Powel said.To make pizza healthier, food producers should reduce its saturated fat and salt, and increase its whole grain content,she said.

Whether or not pizza is harmful enough to be picked out as an unhealthy food, the study attracts attention to a larger issue with the modern American lifestyle, said Alexis Tindall, who was not involved in the flow research.Many foods arc eaten too frequently and in large sizes.said Tindall.To solve the problem, people don’t have to give up eating pizza, but instead, they can eat smaller and healthier pizza,she said.

“Make it at home, instead of ordering it out where you don’t have any control over how it’s made.”Tindall said. “When we make it at home, we can choose healthier ingredients,increase the vegetables.reduce fat, and put in less cheese.Pizza doesn’t have to be just pepperoni(意大利辣香肠)and cheese.”

1.According to the research.children shouldn’t eat

A.more than two slices of pizza in a day

B.two slices of pizza for a meal

C.more pizza with French fries

D.pizza along with salad

2.Powel suggests healthier pizza should be made

A.with less salt B.with more ingredients

C.in smaller sizes D.at home

3.The last sentence of the passage implies that pepperoni and cheese

A.are not necessary ingredients of pizza

B.should be reduced by adding healthier ingredients.

C.should all be replaced with healthier ingredient.

D.are not the only healthy ingredients of pizza

4.What is the best title for the passage?

A.Pizza—a real junk food!

B.How to prepare better meals for your kids?

C.Bring in healthier pizza for Americans

D.Discover the harm of eating pizza

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