Apparently，we are safe neither at home nor in the business office.We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

　　Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

　　These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

　　We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

　　A.The air we breathe in is harmful.

B.Chemicals are released in the running water.

C.Chemicals are added to the drinking water.

　　D. The water in everyday use is unsafe.

2..In Paragraph 2, the underlined sentence means that .

　　A. homes and offices should be aired often

　　B. any pollution should be taken into consideration

　　C. bathing should be done with caution

　　D.we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

　　A.To call on us to guard our water.

　　B.To show us that no place is like home.

　　C.To make us aware of the pollution around us.

　　D.To argue that neither homes nor offices are safe.

People who breathe infected air from a TB patient can become infected with the tuberculosis（肺结核） bacteria（细菌）. However, most people with active tuberculosis do not expel （驱逐，逐出）very many TB bacteria. So, the spread of the disease usually does not happen unless a person spends a large amount of time with a TB patient. Those most at risk are family members, friends and people who live or work closely with a patient.

Tuberculosis can attack any part of the body. However, the lungs are the most common targets（目标） of the bacteria. People with the disease show several signs. They may expel air from the lungs suddenly with an explosive（爆炸性的） noise. This kind of cough continues for a long period of time. People with a more severe case of tuberculosis also may cough up blood.

People with the disease often have high body temperatures. They suffer what are called night sweats, during which their bodies release large amounts of water through the skin. TB victims also are tired all the time. They are not interested in eating. So their bodies lose weight.

One thing that is especially dangerous about TB is that people with moderate（中等的） signs of the disease may not know they have had it. They may spread the disease to others without even knowing it. So, it is very important for people to get tested for tuberculosis.

The spread of the TB is through__________.

A、food        B、air         C、clothes          D、touching

Family members are those most at risk to be infected with the tuberculosis bacteria,_____________.

A、because they have the same bath room  B、because they have blood relationship

C、because they love each other very much  D、because they live in the same room

The common signs of TB are ___________.

A、cough or even cough with blood, night sweat, and tired of sleeping.

B、cough or even cough with blood, night sweat, and eating too much

C、cough, fever, feeling tired, night sweat, losing weight

D、cough, fever, feeling tired, night sweat, eating too much

Why may some TB patients spread the disease to others without even knowing it?

A、Because there is no sign in the early stage of the disease.

B、Because these patients don’t show any signs of the disease.

C、Because these patients’ signs of the disease are too weak to be noticed.

D、Because these patients don’t know how the disease spreads between people.

They’re arguing on who, on earth, is known for the great discovery        penicillin, an effective bacteria killer.

Heavy downpours last month in Rhode Island led to widespread flooding, causing millions of dollars in property damage and leaving thousands homeless. The floodwaters also poured vast amounts of raw sewage (污水) into the rivers and streams that flow into Narragansett Bay.

It sounds like the makings of an environmental nightmare, but in fact it’s just the opposite. To scientists’ delight, the sewage-loaded floodwaters have caused a well-timed growth of phytoplankton, the microscopic creatures that form the foundation of marine food chains. With more food available for fish, clams and other sea creatures, the bay’s fisheries industry is expected to benefit.

In decades past, Narragansett Bay typically experienced a late winter/early spring algal (海藻) bloom that fed creatures up and down the water column. But in recent years, the waters of Narragansett Bay have warmed greatly, interrupting this seasonal event.

Mark Berman, an oceanographer with the National Marine Fisheries Service, said the flood seemed to have sent the bay back to its normal state.

However, local, state and federal officials in Rhode Island have been battling other algal blooms that, by contrast, are causing widespread harm to the Narragansett Bay ecosystem. During summer months, sewage and agricultural runoff flows into the bay, causing large blooms. But instead of becoming food for sea creatures, much of the phytoplankton is consumed by bacteria, which grow fast in the warmer waters. The rapid bacteria growth leads to hypoxia – a decrease of oxygen in the water that can cause large fish kills. One such die-off occurred in 2003, when millions of oxygen-starved fish washed up on the beaches of Narragansett Bay.

The flood’s positive impact will probably be a one-time event, Mr. Berman said. Meanwhile, efforts to curb the harmful summer blooms continue; in 2008, for instance, Providence completed a $359 million sewage tunnel under the city designed to reduce the polluted storm overflow into Narragansett Bay.

1. Scientists believe that the raw sewage flowing into the bay will _______.

2.The potential benefit of fisheries industry relies on the _______.

3. People struggle against the summer blooms because they will ________.

4.It can be inferred that _______.

5. The underlined word “curb” in the last paragraph can be defined as “______”.

任务型阅读(共10题；每小题1分，满分10分)

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。

注意：每空格1个单词。

D. R. Gaul Middle School is in Union, Maine, a blueberry-farming town where the summer fair finds kids competing in pig scrambles and pie-eating contests.

Gaul, with about 170 seventh- and eighth-graders, has its own history of lower level academic achievement. One likely reason: Education beyond the basic requirements hasn't always been a top priority for families who've worked the same land for generations. Here, few adults have college degrees, and outsiders (teachers included) are often kept at a respectful distance.

Since 2002, Gaul's students have been divided into four classes, each of them taught almost every subject by two teachers. The goal: To find common threads across disciplines to help students create a big picture that gives fresh meaning and context to their classwork -- and sparks motivation for learning.

Working within state guidelines, each team makes its individual schedules and lesson plans, incorporating non-textbook literature, hands-on lab work and field trips. If students are covering the Civil War in social studies, they're reading The Red Badge of Courage or some other period literature in English class. In science, they study the viruses and bacteria that caused many deaths in the war.

Team teaching isn't unusual. About 77 percent of middle schools now employ some form of it, says John Lounsbury, consulting editor for the National Middle School Association. But most schools use four- or five-person teams, which Gaul tried before considering two-person teams more effective. Gaul supports the team concept by "looping" classes (跟班) so that the same two teachers stick with the same teens through seventh and eighth grades. Combining teams and looping creates an extremely strong bond between teacher and student. It also, says teacher Beth Ahlholm, "allows us to build an excellent relationship with parents."

Ahlholm and teammate Madelon Kelly are fully aware how many glazed looks they see in the classroom, but they know 72 percent of their eighth-graders met Maine's reading standard last year -- double the statewide average. Only 31 percent met the math standard, still better than the state average (21 percent). Their students also beat the state average in writing and science. And in2006, Gaul was one of 47 schools in the state to see testing gains of at least 20 percent in four of the previous five years, coinciding roughly with team teaching's arrival.