Without proper planning, tourism can cause problems. For example, too many tourists can crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, the inhabitants become annoyed and unhappy. They begin to dislike tourists and to treat them impolitely. They forget how much tourism can help the country and how tourism affects them. Tourism should help a country keep the customs and beauty that attract tourists. Tourism should also advance the well-being (health and happiness) of local inhabitants.
Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry. This means that other parts of the country’s economy can suffer.
On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money. It costs a great deal of money to build large hotels, airports, air terminals, first-class roads, and other support facilities needed by tourist attractions. For example, a major international-class tourism hotel can cost as much as 50 thousand dollars per room to build. If this room is not used most of the time, the owners of the hotel lose money.
Building a hotel is just a beginning. There must be many support facilities as well, including roads to get to the hotel, electricity, sewers（阴沟） to handle waste, arid water. All of these support facilities cost money. If they are not used because there are not enough tourists, jobs and money are lost. Which of the following has most probably been discussed in the paragraph that goes before the passage?
| A．It is extremely important to develop tourism. |
| B．Building roads and hotels is essential. |
| C．Support facilities are highly necessary. |
| D．Planning is of great importance to tourism. |
Too much tourism can cause all these problems EXCEPT ______.
| A．a bad impact on other industries |
| B．A change of tourists’ customs |
| C．overcrowdedness of places of interest |
| D．pressure on traffic |
It is good for local people to be well aware that tourism will _____.
| A．use up a large amount of water |
| B．weaken their economy |
| C．help establish their traditions |
| D．help improve their life |
Why do men live a shorter life than women? The latest research indicates that men’s hearts going into a rapid decline when they reach middle age could be the cause.
The research of ageing on the heart has shown that women’s longevity may be linked to the fact that their hearts do not lose much pumping power with age.
“We have found that the power of the male heart falls by 20-25 percent between 20 and 70 years of age,” said the head of the study, Samantha of Liverpool John Moores University in the UK.
“Within the heart there are millions of cells which make it beat.Between the ages of 20 and 70, one-third of those cells die and are not replaced in men ,” said Samantha.“This is part of the ageing process.”
What amazes scientists is that the female heart suffers very little loss of these cells.A healthy 70-year-old woman’s heart could work almost as perfectly as a 20-year-old one’s.
“This gender （性别）difference might give the reason why men live shorter than women,”said Samantha.They studied over 250 healthy men and women between the ages of 17 and 80, who are mainly healthy persons so as to reduce the influence of disease.“The team has yet to think about why ageing suffers a greater loss on the male heart,” said Samantha.
But there is also good news -- men can enjoy the health of their hearts with regular exercise.Samantha stressed that women should also take regular exercise to stop their leg muscles getting weaker as they age.The underlined word “longevity” in the second paragraph means “________”.
| A．health | B．long life | C．ageing | D．effect |
The text mainly talks about ________.
| A．men’s heart cells | B．women’s ageing process |
| C．the gender difference | D．hearts and long life |
According to the text, the UK scientists have known that ________.
| A．men have fewer cells than women when they are born |
| B．women can produce the cells that make the heart beat |
| C．the female heart suffers less loss of the cells with age |
| D．women will never suffer the loss of pumping power with age |
If you want to live a long life, you should ________.
| A．enable your heart to beat much faster |
| B．think about the reason for ageing |
| C．take regular exercise to keep your heart healthy |
| D．stop your cells from being lost |
The United States has about 475,000 school buses ---all painted yellow.Each day they carry more than 25,000,000 children, half of all schoolchildren in the country.But these buses, on average, use four liters of diesel (柴油) fuel to travel less than sixteen kilometers.When the school year began last fall, diesel averaged 55 cents a liter nationally.The price nearly doubled, to a dollar and 8 cents, by the end of school in June.
Bob Riley speaks for the American School Bus Council.He says fuel prices for schools are not much lower than others have to pay.As a result, schools are looking for ways to reduce transportation costs.Bus routes are being redrawn or, in some cases, canceled (取消).Some areas are buying buses that use natural gas or other alternative fuels.Other steps include fewer field trips and less travel by sports teams.And some school districts (地区) may end any bus service not required by law.
Studies show that school buses are the safest form of transportation to and from school.The American School Bus Council says cuts in bus service are bad for children and possibly the environment.It says removing buses from the road will mean an increase in other vehicles transporting students.Spokesman Bob Riley says another concern is that reducing bus services might reduce attendance.
But it could also get more children to walk or bicycle to school.And that would surely make people happy at the National Center for Safe Routes to School.More kids walking or biking safely to school is the aim of a three-year-old federal program, part of an international movement.The goal is to increase physical activity and reduce air pollution.The United States will celebrate Walk to School Day on October the eighth this year.But for some students, high fuel prices could make every day a walk-to-school day.What does this passage mainly tell us?
| A．High fuel prices’ influences on school buses. |
| B．New measures to transport school students. |
| C．The safest form of student transportation. |
| D．The origin of Walk to School Day. |
Which of the following information is implied in the first paragraph?
| A．There are too many school buses in the United States. |
| B．There are too many students in the US. |
| C．Diesel prices are going up too rapidly in the US. |
| D．School buses consume too much diesel in the US. |
What can we learn from Paragraph 3?
| A．Cuts in bus service will have negative results. |
| B．The US government is encouraging cuts in bus services. |
| C．The US schools are searching for the safest transportation means. |
| D．Reducing bus service will do a lot of good to the environment. |
The National Center for Safe Routes to school encourages more children to walk or bike to school in order to ____.
A.save more fuels and diesel for the country
B.keep the children safe on their way to school
D.keep the children healthy and the environment clean.
Here is some information about several famous local bakeries(面包烤房) in Indiana, the US.They serve as a social gathering place for locals.
Maple Lane Bakery
At 8260 S.State Rd.Claypool, IN.(574) 566-2917, it offers a variety of cooked pies, cookies, and bread.With 20 years’ experience Maple Lane Bakery has specialized in the making of pies.The menu includes peach pie $7.19, berry pie $7.70, apple pie $7.19 and banana pie $6.99.Feel free to place an order at least 24 hours in advance.
Betty’s Cakes & Candy Shop
At 816 E.Winona Avenue Warsaw, IN.(574) 269-1231, it specializes in cakes and offers cookies and candies.The chocolate cookies are sold at $8.99 a dozen.Betty’s Cakes & Candy Shop, started half a century ago, specializes in wedding cakes and birthday cakes.Buying a cake from Betty’s will not disappoint you as they are always excellent.
Crepes’ Quality Bakery
At 217 S.Cavin Street Ligonier, IN.(260) 894-3024, this third generation bakery is located downtown Ligonier.It offers cookies and cupcakes, and specializes in rolls and bread.If you plan to buy cookies for the office or work area, you had better get there early as the building workers arrive just before 5:00 am waiting for the doors to open.
Olympia Candy Kitchen
At 136 N.Main Street Goshen, IN.(574) 533-5040, it has been welcoming visitors for almost a century in its unchanged location in downtown Goshen, Indiana.Its tradition began in 1912 when Greek Nicholas began making his own chocolates.Today this family-owned operation offers all kinds candies and boxed candies.
If you need an order, you should call ahead of time to see if they can meet your request.Which of the following pies is the most expensive?
| A．Peach pie. | B．Banana pie. | C．Apple pie. | D．Berry pie. |
If you want to order a birthday cake, you are advised to call _________.
| A．(574) 533-5040 | B．(574) 269-1231 |
| C．(260) 894-3024 | D．(574) 566-2917 |
Which of the following bakeries has the shortest history?
| A．Crepes’ Quality Bakery | B．Betty’s Cakes & Candy Shop |
| C．Olympia Candy Kitchen | D．Maple Lane Bakery |
The author wrote this passage mainly to __________.
| A．tell readers some travel information |
| B．persuade more people to eat pies |
| C．make the bakeries better known to readers |
| D．warn customers to order bakeries in advance |
Ralph and Norton can grow to be 40 feet long and live in a tank as large as a football field.What are they? They’re the only two whale sharks at a North American aquarium .
You can see Ralph and Norton at the world’s largest aquarium, the new Georgia Aquarium in Atlanta.
The aquarium’s giant tanks hold eight million gallons of water and will be home to about 100,000 fish!
The aquarium was designed to look like a giant ship breaking through the waves.It has 60 different habitats from the sea and five galleries (展馆), each with a different theme.About 2.4 million visitors are expected to come each year.“We want to be the world’s most engaging aquarium.” Said Jeff Swanagan, the aquarium’s executive director.
Ralph and Norton arrived in June, 2005 from Taiwan.They were only 15 and 13 feet long, but they may grow to be more than 40 feet long! Whale sharks are the world’s largest fish.Three full-time vets will work there to make sure that Ralph, Norton, and all of the aquarium’s sea life stay healthy.Students from the University of Georgia will help run the aquarium and conduct research at the animal hospital.
The aquarium was paid for almost completely by a $ 200 million gift from Bemie Marcus, co-founder of Home Depot Inc, and his wife, Billi.“It’s going to be the most unique aquarium in the world,” said Marcus.Marcus said the aquarium was a “thank you” note to the city of Atlanta and the State of Georgia, where the Home Depot first opened for business.According to this passage, Ralph and Norton are ______.
| A．polar bears | B．penguins | C．whale sharks | D．dolphins |
The world’s largest aquarium is located in ____.
| A．Los Angeles | B．Atlanta | C．New York | D．Miami |
Which of the following is TRUE?
| A．Marcus helped to build the aquarium to show his thanks to Atlanta. |
| B．The aquarium’s giant tanks can hold eighteen million gallons of water. |
| C．Ralph and Norton arrived in June, 2005 from Japan. |
| D．The aquarium was designed to look like a giant shark. |
By saying “We want to be the world’s most engaging aquarium” Jeff Swanagan means ___.
| A．the aquarium will be the largest habitat for sea life |
| B．the aquarium will be home to very special sea animals |
| C．the aquarium will be rebuilt and will be made even larger |
| D．the aquarium will attract a large number of visitors |
Research suggests that a newly-identified gene known as insomniacs(失眠症患者) may play a role in keeping us asleep. By cloning and testing this gene in about 21,000 fruit flies, Rockefeller University researchers say they have discovered an entirely new mechanism (机制) by which sleep is controlled.
By studying these flies, the researchers discovered that mutations(变异) in the insomniac gene were associated with a great reduction in sleep. While a typical fruit fly slept for an average of 927 minutes a day, the mutant flies slept for just 317. They also slept for shorter periods of time, and slept and woke more frequently.
“The results showed a great loss of both the time that the flies’ sleep lasted and their ability to remain asleep after they slept,” says researcher Nicholas Stavropoulos.
The researchers also examined the link between sleep and lifespan, finding that flies with mutations to the insomniac gene lived only about two-thirds as long as unchanged flies. But when the scientists removed insomniac only in neurons（神经细胞）---allowing it to remain in the rest of the flies’ bodies---this difference disappeared; the resulting animals slept poorly but lived just as long.
“This suggests that reduced sleep can be ‘uncoupled’(分开) from reduced lifespan, supporting the idea that some interruptions of sleep do not affect overall health, at least as far as lifespan is concerned,” Stavropoulos says.
Although flies and humans would appear to have little in common when it comes to lifestyle, scientists say that the mechanisms of sleep and wakefulness are likely to be quite similar.
“Sleep is a fundamental behavior in all animals, and it is poorly understood from a scientific standpoint, says Stavropoulos. This work could prove useful in understanding and treating sleep disorders”The text is mainly about____.
| A．the progress in cloning fruit flies |
| B．the methods of cloning fruit flies |
| C．the link between gene and lifespan |
| D．the influence of a gene on the ability to sleep |
According to paragraph2, the mutant flies________.
| A．slept about 5 hours a day |
| B．had problems waking up |
| C．didn’t seem sleepy at all |
| D．could not fall asleep |
We can conclude from the text that________.
| A．sleep and health go hand in hand |
| B．sleep can be controlled by humans |
| C．research into sleep is very fruitful |
| D．the findings are useful in medical treatment |