问题 选择题

地球上气温年较差最显著的地区是(  )

A.热带地区

B.温带地区

C.寒带地区

D.高山地区

答案

一年内,月平均气温的最高值与最低值的差,称为气温年较差.通过气温年较差,可以反映出气温年变化的幅度.寒带地区气候终年寒冷、热带地区终年炎热,气温年较差小.而温带地区四季分明,冬季寒冷、夏季炎热,所以气温年较差大.

故选:B.

阅读理解

Sometimes willpower is a lot like the television remote control—hard to find just when you want it most.小题1:But there are ways to increase your willpower.

* Don't try to change your economic situation, win a promotion and lose weight all on the same morning. Set one clear, specific goal and make a realistic plan to achieve it.Extra willpower sometimes requires extra energy, so don't spread yourself too thin,小题2:

* Whatever your goal is, don't expect to achieve it overnight,小题3:If you are trying to kick a coffee habit, start by replacing your morning cup of coffee with a glass of water, instead of promising never to drink coffee again. Congratulate yourself on the small achievements.These success help your willpower grow.

*小题4:Ask friends, family or colleagues for assistance and tell them exactly how they can help. If your credit card bills have risen, for instance, let friends know that you are cutting back on expenses. Suggest having a common dinner instead of meeting at an expensive restaurant.  Find a support group or organization related to your goal and attend their meetings. You can get valuable advice, understanding and information.

* If possible, change your environment to encourage positive behavior. Want to get in shape? Keep an extra set of workout clothes in your office as a reminder to stop by the gym on the way home. Quitting smoking?小题5:

A.Real success takes time.

B.Focus on one goal at a time.

C.Change your environment to change your life.

D.Improve your willpower by a support network. E. Changing your behavior requires more than willpower.

F. Avoid bars or restaurants where you might be attracted to light up.

G. Breaking a bad habit or forming a new and healthy one can be difficult.

单项选择题