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问题 填空题

下列几种动物群体中，不具有社群行为的是（　　）

A．绵羊的群体

B．蚂蚁的群体

C．蜜蜂的群体

D．阿尔卑斯狒狒的群体

答案

A、绵羊的群体间，没有分工，各顾各的，不属于社群行为，符合题意．

B、蚂蚁营群体生活，有明确的分工，有雌蚁、雄蚁、工蚁和兵蚁，为社群行为，不符合题意．

C、蜜蜂营群体生活，有明确的分工，有蜂王、雄蜂、工蜂等，为社群行为，不符合题意．

D、阿尔卑斯狒狒营群体生活，有森严的等级制度，为社群行为，不符合题意．

故选：A

填空题

某导体的电阻是10W，通过它的电流是0.2A，通电10s，电流通过电阻产生的热量是_______J。
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单项选择题 案例分析题

There are three kinds of goals: short-term,medium-range and long-term goals. Short-range goals are those that usually deal with current activities,which we can apply on a daily basis.Such goals can be achieved in a week or less,or two weeks,or possible months.It should be remembered that just as a building is no per than its foundation ,out long-term goals cannot amount to very munch without the achievement of solid short-term goals.Upon completing our short-term goals,we should date the occasion and then add new short-term goals that will build on those that have been completed.

The intermediate goals bukld on the foundation of the short-range goals.They might deal with just one term of school or the entire school year,or they could even extend for several years.Any time you move a step at a time,you should never allow yourself to become discouraged or overwhelmed. As you complete each step,you will enforce the belief in your ability to grow adn succeed.And as your list of completion dates grow,your motivation and desire will increase.

Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing.We should never allow a long-term goal to limit us or our course of action.

Our long-term goals mean a lot（）.

A.if we complete our short-range goals

B.if we cannot reach solid short-term goals

C.if we write down the dates

D.if we put forward some plans
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