因子生态分析法的前提条件是运用( )进行大量数据的处理和多变量解析统计方法的开发，

There are four seasons in most of the countries. But the weather is not always the same. In England, winter is not very cold and summer is not very hot. There is not a great __31___between summer and winter. Do you know why?
England has a warm winter and a cool summer because it is an ___32___country.In winter the sea is warmer than the land. The winds __33___the sea bring __34___air to England. In summer the sea is cooler than the land. The winds from the sea bring cool air to England. The west winds blow over England all the year around. They blow from the southwest. They are wet winds. They also bring ___35___to England. So England has ___36___rain all the year .Sometimes it rains heavily. The west of England is wetter than the east.
In Canada they have four seasons, too. But the average( 平均 )temperature is very low. Spring is usually very ___37___in most part of the country. It comes in February. People can still go skating in some places. Summer is usually very cool. Early in the morning the weather is so cold that people usually wear sweaters. Autumn comes ___38___summer. Canadians like to watch maples(枫叶) in the park or on the hills. They are really
beautiful. Winter is the__39___ season of the year. It’s often freezing cold. There is thick ice on the river or lake. Children like to go skating there. Of course, they should wear warm, thick coats, __40___they will catch a cold.

小题1:	A．different B．difference C．same D．unlike

小题2:	A．land B．island C．big D．small

小题3:	A．from B．to C．come D．go

小题4:	A．hot B．cold C．warm D．cool

小题5:	A．wind B．snow C．rain D．wet

小题6: 

A．a little

B．a few

C．a bit of

D．a lot of

小题7:	A．warm B．hot C．cool D．cold

小题8:	A．after B．before C．with D．in

小题9:	A．cold B．colder C．coldest D．warmest

小题10:

A．and B．or C．but D．so