At a beach or a swimming pool a lifeguard is a person who is responsible for __________ other swimmers and protecting them from accidents.

A. turning to       B. watching over    C. watching out D. digging out

Don't bother Tom. He is ________ with the experiment on water molecules（分子）in the lab.

A. focused       B. occupied    C. fixed            D. concentrated

  Nobody believed his reason for being absent from the class ______ he had to meet his uncle at the airport.

A. why          B. because      C. where            D. that

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.

I don’t know who invented __________ telescope, but I think it is __________ most

useful invention.

  A. the, the         B. the, a        C. a, the        D. a, a

I _______ all the cooking for my family, but recently I have been too busy to do it.     

A. will do          B. do         C. am doing        D. had done

—What was the party like?

    —Wonderful．It' s years ____ I enjoyed myself so much．

    A．before       B．after           C．since                D．when

__________ the kids have left home,  we’ve got a lot of extra space.

A. As soon as    B. While      C. Now that     D.  Before

The watch ______ unnoticed for several days before I found it.

  A. had laid          B. had lain       C. had been laying     D. had been laid

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The symptoms ( 症状) of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

    Certain microorganisms (微生物) cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release (释放) poisons that make people sick.

    Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.

    Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

    When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with ditty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

    Most people recover from food poisoning after a few days of resting and drinking extra water.                                                                             

If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.

Which of the following statements is NOT true?

A. Food poisoning means death        

B. When poisoned, food can make people sick 

C. Food poisoning comes in varieties   

Ｄ. Food poisoning can be serious

We know from the passage that the symptoms of food poisoning ______.

A. only contain fever                       B. are too common to be noticed

C. can be noticed within hours              D. can be ignored

Food poisoning can be caused by all the following EXCEPT __________.

A. some chemicals                   B. low temperatures 

C. some tiny living things              D. certain natural materials

From Paragraph 5, we can learn that ____________.

A. mushrooms should not be eaten

B. vegetables are safer than meat and seafood

C. natural poisons are more dangerous than chemicals

D. different types of food should be handled differently

It can be inferred from the passage that _____________.

A. natural materials are safe in food processing   

B. chemicals are needed in food processing

C. food poisoning can be kept under control     

D. food poisoning is out of control