问题 填空题

在弹簧测力计下挂一圆柱体,从图示位置缓慢下降(容器足够深且没有水溢出),如图所示是圆柱体下降过程中弹簧测力计读数F随圆柱体下降高度h变化图像。则圆柱体浸没在水中时,受到的浮力是 _________ N;分析图像BC段,可得结论:物体浸没液体之前,浸入液体的深度越深,受到的浮力越 _________ (选填“大”或“小”);分析图像CD段,可得结论:________________________。

答案

8;大;物体浸没在液体中,受到的浮力大小与深度无关。

阅读理解

阅读理解。

     Brian Walker chews pens. He bites them so hard that his boss has warned him to stop or buy his own.

Kate's weakness is more acceptable-she is unable to walk past a cake shop without overeating Sophin Cartier

finds her cigarette habit a headache, while Alice's thumb-sucking drives her boy friend crazy. Four people

with very different habits, but they all share a common problem anxiety disorder or, in serious cases. Obessive

Compulsive Disorder (OCD).

     From nail-biting to too much hand-washing, overeating and internet addiction (上瘾),OCD is widespread

in almost every workplace and countless home."It is a relatively common form of anxiety," says Dr. Mootee.

"The main feature of OCD is the repetition of unwanted obsessive (过度的) thoughts such as worries that

doors are left unlocked, gas or electrical appliances are left on." In order to fight against the an essay checking

door locks and gas or electrical appliances.

     Dr. Mootee says that repetitive washing, particularly of the hands, is the most common type of OCD. She

has treated many patients who wash their hands up to 30 times a day. The technique Mootee uses to treat

people with OCD is called cognitive-behavioral therapy (认知行为疗法). "It is based on the general idea that

people have the ability to change the way they think and behave," says Mootee.

     But when does a habit become a problem? "It's personal," says Mootee. "Everyone has something unusual,

but if you can't put up with it, then it's a problem and you need to do something to change it." Mootee says

many people ready for treatment because they fear they are "crazy". But as people become more knowledgeable about these problems they will go and get help. The only way to cure is to conquer.

1. If a person suffers from OCD, he is likely to keep doing any of the following EXCEPT _____. 

A. chewing pens

B. hurting himself

C. sucking fingers

D. biting nails

2. According to the passage, a person suffering from OCD _____.

A. reduces his/her anxiety by taking drugs

B. gets into unwanted habits to relieve stress

C. has unwanted thoughts about habits

D. has unwanted thoughts because of illness

3. Dr. Mootee's treating technique is based on the idea that _____.

A. everyone has something different

B. people can put up with their problems

C. people can change their way of thinking and action

D. people tend to repeat their obsessive actions

4. By saying "The only way to cure is to conquer." Dr. Mootee suggests that an OCD sufferer _____.

A. has to be an extraordinary person

B. must cure his illness by himself

C. must overcome many physical illnesses

D. should have a right attitude towards the problem

问答题