【推荐1】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。选项中有两项为多余选项。

Everyone knows that fish is good for health.    1    But it seems that many people don’t cook fish at home. Americans eat only about fifteen pounds of fish per person per year, but we eat twice as much fish in restaurants as at home. Buying, storing, and cooking fish isn’t difficult.    2    This text is about how to buy and cook fish in an easy way.    3    Fresh fish should smell sweet: you should feel that you’re standing at the ocean’s edge. Any fishy or strong smell means the fish isn’t fresh.    4    When you have bought a fish and arrive home, you’d better store the fish in the refrigerator if you don’t cook it immediately, but fresh fish should be stored in your fridge for only a day or two. Frozen fish isn’t as tasty as the fresh one.There are many common methods used to cook fish.    5    First, lean it and season it with your choice of spices(调料). Put the whole fish on a plate and steam it in a steam pot for 8 to 10 minutes if it weighs about one pound. (A larger one will take more time.) Then, it’s ready to serve.

A．Do not buy it.

B．The easiest is to steam it.

C．This is how you can do it.

D．It just requires a little knowledge.

E．The fish will go bad within hours.

F．When buying fish, you should first smell it.

G．The fats in fish are thought to help prevent heart disease.

【推荐3】Most of us are familiar with carrots.     1     They are a cool-season crop that can tolerate low temperatures.

    2     Firstly we should ensure that the soil used for deep-rooted types is free of stones. Mix the soil with organic matter, especially during the fall season before sowing.

Then we should choose a variety of carrots after the soil is prepared.     3    The early ones are usually small, slender and are eaten while they are young; the main crop types are larger and are eaten fresh or stored.

Early types should be sown in spring as soon as the soil is workable. They may also be sown under covers, though the covers should be removed after a few weeks.     4    Carrot seeds can be sown about 1/2 inch deep. Early carrots should be thinned to 3 inches apart; main crop carrots should be thinned to 1.5 inches.

Weeds should be removed regularly once the carrots have germinated. Watering is needed every two to three weeks. Watch out for pests and diseases.     5     Protect against carrot rust flies by surrounding the patch of young carrots with a protective barrier 2 to 3 feet high. Use either fine netting or plastic as barriers.

Early carrots can be harvested about seven to nine weeks after sowing and main crop carrots should be harvested after ten to eleven weeks.

A．There are many varieties.

B．They are good to people’s eyes.

C．After about a week, the seeds come out.

D．They are a long-pointed orange root vegetable.

E．Carrots are grown in an open site in fertile soil.

F．Carrot rust flies can be a serious problem for carrots.

G．Main crop types can be sown from late spring to early summer.

【推荐2】Melinda Skaar wasn't expecting any phone calls. Skaar was working late in her office at the First Internet bank of California. By 10:45 that night she was almost ready to go home when the phone rang. Picking it up, she heard a guard shouting, “There is a fire! Get out of there.” Skaar didn't panic. She figured that it was just a small fire. Her office building was huge. There were 62 floors and her desk was on the 37th floor. Skaar called out to office mate Stephen Oksas, who also stayed late to work. But when they got out to the hallway, they were met by a cloud of black smoke. Rushing back, Skaar shut the door and filled the space at the bottom of the door with her jacket to keep the smoke out.

Then they called 911. Before they could call their families, however, the line went dead. That meant that they were completely cut off from the outside world. All they could do was wait and hope someone would come to rescue them.

Minutes ticked by. Smoke began to float into the office. Soon it became hard for them to breathe. Looking around, Skaar noticed a small workroom. It seemed to have cleaner air. So they crowded there. That helped for a while, but in time even the workroom was filled with deadly smoke. Hopeless, they tried to break the windows, but the glass was not breakable. Everything they threw at it just bounced back. Defeated, they struggled back to the workroom. They felt weak and dizzy. Soon Skaar found Oksas had passed out.

As Skaar and Oksas lay near death, rescuers were rushing to find them. At last, at about 4 a.m., firefighters found them.

Skaar and Oksas knew they were lucky to be alive. Sunday is my birthday, Skaar told a reporter. She would be turning 29, but she knew she had already got the best present possible—the gift of life.

1. What did Skaar and Oksas do when they were stopped by the fire?

A．they tried to run down the stairs.	B．they called their families.
C．they waited where they were.	D．they rushed back and shut the door.

2. The following helped Skaar and Oksas survive the fire except            .

A．calling 911 for help

B．shutting the door and keeping the smoke out with a jacket

C．breaking the windows to get some fresh air

D．crowding in a small workroom for clean air

3. what can we conclude from Skaar's action in the fire?

A．she was trained as a firefighter

B．she was cleverer than Oksas

C．she had had the experience of being caught in fire.

D．she remained calm in the face of danger

【推荐3】Flash droughts (突发性干旱) develop fast, and when they hit at the wrong time, they can ruin a region’s agriculture. They are also becoming increasingly common as the planet warms. In a study published in the journal Communication Earth &Environment, we found that the risk of flash droughts, which can develop in a few weeks, is on pace to rise in every major agricultural region around the world in the coming decades.

In North America and Europe, cropland that had a 32% annual chance of a flash drought a few years ago could have a greater chance of a flash drought by the final decades of this century. That result would put food production, energy, and water supplies under increasing pressure. The cost of ravage will also rise. A flash drought in the Dakotas and Montana in 2017 caused $2.6 billion in agricultural damage in America alone.

All droughts begin when rainfall stops. What’s interesting about flash droughts is how fast they reinforce themselves, with some help from the warming climate. When the weather is hot and dry, soil loses water rapidly. Dry air extracts moisture from the land, and rising temperature can increase this evaporative demand. The lack of rain during a flash drought can further contribute to the feedback processes. Under these conditions, crops and vegetation begin to die much more quickly than they do during typical long-term droughts.

In our study, we used climate models and data from the past 170 years to assess the drought risks ahead under three conditions for how quickly the world takes action to slow the pace of global warming. If greenhouse gas emissions (排放物) from vehicles, power plants, and other human sources continue at a high rate, we found that cropland in much of North America and Europe would have a 53% annual chance of flash droughts, respectively, by the final decades of this century. Globally, the largest projected increases in flash droughts would be in Europe and the Amazon. Slowing emissions can reduce the risk significantly, but we found flash droughts would still increase by about 6% worldwide under low-emission conditions.

1. Why is the flash drought a concern?

A．It often develops and strikes unexpectedly.	B．It does go hand in hand with rainfall.
C．It can be destructive to regional agriculture.	D．Its chance has increased dramatically.

2. What does the underlined word “ravage” mean in paragraph 2?

A．Control.

B．Assessment.

C．Production.

D．Damage.

3. Which of the following is a direct contributor to flash droughts?

A．The constant rainfall.	B．The increasing food demand.
C．The warming planet.	D．The fast pace of modern life.

4. What can be done to reduce the drought risks according to the last paragraph?

A．To cut down on carbon footprint.	B．To evaluate the risks regularly.
C．To study climate models and data.	D．To monitor weather condition.

【推荐3】Do you know what Street Sense is? It's a newspaper in Washington D. C. about homeless people and problems that affect them. Homeless, or formerly homeless, Washingtonians write many of the articles. The newspaper's business model is based on homeless sellers who sell the newspaper. You can hear them call out “Street Sense for sale！” near subway entrances, lunch places and other areas around the city.

The Street Sense newspaper is housed in an office in a Christian church in Washington. Every other Wednesday about fourteen thousand copies are printed. The newspaper expresses the thoughts and experiences of people who call the streets home.

Four staff members work at Street Sense, and two of them are paid. The staff members write the first two pages of the paper. Interns — students working as part of their studies — and volunteers help. Homeless writers provide the rest of the material. This includes poems, stories and essays.

Street Sense provides training for the homeless people who want to become part of the sales team. After the training, each student is given ten free copies of Street Sense. Once those are sold, trainees become real salespeople. They buy papers for thirty­five cents each and sell them for a dollar.

Lisa Gillespie is the managing editor of Street Sense. She says the newspaper plays a part in homeless people's lives that other media cannot. With the help of the newspaper, a lot of homeless people have become confident again, and their lives have also been improved a lot.

1. What does the writer mainly tell us in Paragraph 1?

A．Something about the Street Sense.

B．Homeless people in Washington D. C.

C．How Street Sense solves homeless people's problems.

D．Street Sense is very interesting.

2. How often is Street Sense printed?

A．Once a week.	B．Twice a week.
C．Every two weeks.	D．Once a month.

3. What do the staff members mainly do at Street Sense?

A．They sell newspapers along the street.

B．They write the first two pages of the material.

C．They edit the newspaper after they receive articles.

D．They provide the last two pages of the material.

4. What can we infer from this passage?

A．If you are one of the trainees of Street Sense, you can get ten dollars from selling all of your newspapers.

B．There are too many homeless people in Washington D.

C．for the government to help. C.Most articles of Street Sense are about Washingtonians' lives.

D．If you become real salespeople of Street Sense, you can get thirty­five cents from a copy of the newspaper.