A
For thousands of years，man has enjoyed the taste of apples. Apples，which are about 85 percent of 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 colour，size and taste. The colour 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. Generally，sweet apples are eaten fresh while tart apples are used to make apple sauce.
Apple trees may grow as tall as twelve metes. 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.
21．It can be learned from the text that Delicious apples are________.
A．grown in France B．sold everywhere
C．very big D．quite sweet
22．Cold winter weather is good for________.
A．the growth of apple treesB．producing large apples
C．improving the taste of applesD．the increase of water in apples
23．China，France and the United States are considered to________.
A．be large producers of apples
B．be large producers of apple sauce
C．have the longest history in apple production
D．have the coldest winter among apple producing countries
24．The underlined word“yielded”in the last sentence means“________”．
A．improved B．increased C．produced D．sold
