问题 读图填空题

用手指触摸蚯蚓体节近腹面处,有粗糙不平的感觉,用放大镜观察,看到腹面有许多小突起就是       ,刚毛的作用是             

答案

刚毛  协助运动

题目分析:蚯蚓的腹面大多数体节中间有刚毛,刚毛有协助运动的作用,因此用手在蚯蚓体表来回轻轻抚摸时,会有粗糙不平的感觉,这是因为摸到了蚯蚓体表的刚毛,蚯蚓的运动就是依靠纵、环肌的交互舒缩及体表的刚毛的配合而完成的,当蚯蚓前进时,身体后部的刚毛钉人士内不动,这时环肌收缩,纵肌舒张,身体就向前伸,接着身体前端的刚毛钉入土内不动,这时纵肌收缩、环肌舒张,身体向前缩短而前进,蚯蚓是通过身体肌肉的伸缩和刚毛的配合运动的。

阅读理解

When it comes to success in business and success in life, there are few qualities as important as confidence.

People naturally have different levels of confidence.Some have a higher level of confidence than others do, but even those whose confidence is lacking can learn to build their level of confidence and reach their most important goals.Increasing self confidence is one of the most common reasons people give for seeking the help of psychologists and other professionals.

One of the many places where a greater level of confidence is useful is in the workplace.We all know how difficult it can be, for instance, to ask the boss for a raise.This process can be extremely difficult for those who lack confidence in their own abilities.After all, if you are unsure about your own abilities, how will you ever convince your boss that you deserve more money for the work you do?

Even if you are not asking for that big raise, having plenty of confidence in your abilities is important to success.If you are certain of your abilities, chances are that those around you, whether they are your coworkers, your colleagues or your superiors, will see that confidence, and that will help to assure them that you are the best at what you do.

Being thought of as the person to go to, and being seen as an expert in your chosen field, is naturally very important to success on the job.If you can make yourself the person people go to for guidance and advice, you will help to protect yourself from the ever present danger of downsizing(裁员).After all, if you are a recognized expert at the office, you will be regarded as an indispensable member of the team.

Having a high level of confidence, after all, does not mean overlooking the places where you could improve.Knowing what you do well and where you need help will help you enjoy increased success and confidence.

小题1:What is the passage mainly about?

A.The influence of confidence on one's life.

B.The difference of people's confidence..

C.The importance of confidence to success

D.The judgment on one's confidence.小题2:Psychologists and other professionals can offer help to those ______.

A.who dream to be recognized experts

B.who expect to give guidance to others

C.who want to ask the boss for a raise

D.who think their goals are hard to reach小题3:What message does the author want to convey(传递) in the last paragraph?

A.To overlook one's disadvantages.

B.To make full use of one's advantages.

C.To have great confidence in one's abilities.

D.To make objective evaluations of one's abilities.

单项选择题