题目内容：

    If you have never ever heard of pawpaw，you are not alone. Most Americans do not know of the fruit，although it is native to the United States. Once，however，it was one of the most popular fruits in North America. Happily，those who love the pawpaw are trying to return it to its former position in American foods.

The pawpaw is a kind of fruit that grows on trees found all over the eastern United States. It is similar in size to a typical mango. It has a dull green-colored skin，and a soft，almost creamy orange inside. Most people agree that the pawpaw tastes like a combination of bananas，apricots （杏）and mangos. Most people are very surprised by its sweet taste. The fruit has a very short harvest season，from two to three weeks in September and October.

The pawpaw has never been sold commercially. The fruit requires a very special environment-low，wet areas that sometimes flood. In addition，the fruit is good to eat for only two to three days after harvesting. This makes it hard to sell anywhere distant from the pawpaw trees.

Planters are again growing pawpaw trees and harvesting the fruit. In several states farmers have organized “pawpaw festivals” to reintroduce the food to people.

Farmers are trying to grow different kinds of paw paws that will be easier to ship and sell commercially. Donna and Jim Davis are pawpaw farmers in Westminster，Maryland. They told National Public Radio that they purchased their pawpaw trees in the 1990s and now sell the fruit at farmer markets and online.

So, who knows? Maybe the pawpaw will show up soon at a market near you.

1.What is the pawpaw's most outstanding nature?

A. It grows on trees all over the US.

B. Its sour taste is like an apricot.

C. It looks like a combination of bananas and mangos.

D. It is very rich in sugar.

2.Why is it difficult for the pawpaw to become a big business?

A. It has to be sold far from the pawpaw tree.

B. It is difficult to harvest in the low and wet areas.

C. It is hard to keep its freshness for long.

D. It needs expensive transportation to the market.

3.What do farmers do to deal with the disadvantage of paw paws?

A. They advertise on National Public Radio.

B. They plant improved pawpaw trees.

C. They organize pawpaw festivals.

D. They sell the fruit at farmer markets.

4.Which of the following can be the best title for the text?

A. A forgotten American fruit is becoming popular again.

B. Fruit of pawpaw plays an important part in America.

C. Most people have hardly eaten fresh paw paws.

D. A traditional fruit has changed people's diet.