题目内容：

For thousands of years, man has enjoyed the taste of apples. Apples, which are about 85 percent water, grow almost everywhere in the world but the hottest and coldest areas. Among the leading countries in apple production are China, France and the United States.

There are various kinds of apples, but a very few make up the majority of those grown for sale. The three most common kinds grown in the United States are Delicious, Golden Delicious, and McIntosh..

Apples are different in color, size and taste. The color of the skin may be red, green or yellow. They have various sizes, with Delicious apples being among the largest. The taste may be sweet or tart(酸的). Generally, sweet apples are tasted fresh while tart apples are used to make applesauce(果酱).

Apple trees may grow as tall as twelve meters. They do best in areas that have very cold winters. Although no fruit is yielded during the winter, this cold period is good for the tree.

1.It can be learned from the text that Delicious apples are_______.

A．grown in France    B．sold everywhere    C．very big           D．quite sweet

2.Cold winter weather is good for________.

A．the growth of apple trees

B．producing large apples

C．improving the taste of apples

D．the increase of water in apples

3.China, France and the United States are considered to_______.

A．be small producers of apples

B．be large producers of applesauce

C．have the longest history in apple production

D．have the coldest winter among apple production

4.The word yielded in the last sentence means________.

A．improved         B．increased         C．produced         D．sold