问题 选择题

一小组在做“蚯蚓在什么样的物体表面爬得快”的探究活动时,发现实验结果和其他小组的都不同。他们应该

A.在多次重复实验的基础上确认实验结果是否正确

B.立即参考其他小组的实验结果进行修正

C.承认本组的探究活动已经失败

D.坚持本组的实验结果是完全正确的

答案

答案:A

题目分析:在科学探究过程中,为了减少误差,应该多次实验,当发现实验结果和其他小组的都不同,应该在多次重复实验的基础上,确认实验结果是否正确。

点评:此题为基础题,解答此题的关键是熟知科学探究的基本环节。

阅读理解

阅读表达。

阅读下面的短文,并根据短文后面的要求答题.(请注意

问题后的词数要求)

     Have one of those days or weeks when everything seems to annoy

you? Even if you do nothing about it,your bad mood will probably go

away after some time. But with a little effort,you can forget

it much faster, often within a day or two.

     ◆ Walk it off

     Exercise is the most popular way to remove bad mood. A person

who's in a bad mood has low energy and high tension. Taking a

fast ten-minute walk, or taking some quick exercise can do wonders

towards changing that bad mood.

     ◆ Tune it out

     Listening to your favorite music for a while can also make tensions

go away quickly,because music starts associations with past positive

experiences we've had.

     ◆ Give yourself a pep talk

     Stop and listen to what's on your mind. Bad moods are often

started by too many negative thoughts. Write them all down on paper,

including the pessimistic ( 悲观的)messages you've been giving yourself

and then give optimistic answers.

     ◆ Avoid things that won't improve your mood

     TV may not help much. You need to increase your energy level

and stimulate your mind. And before you reach for that piece of

cake or coffee ,think about how       are linked. Sugar and caffeine

contribute to depressed moods. While carbohydrates, such as potatoes

and pasta( 意大利面食) produce a calming effect in people

who have a desire for them.

1. What's the best title of this passage? (Please answer in less

    than 10 words)

     _______________________________

2. Which sentence in the passage can replace the following one,'?

    Sometimes your bad mood may disappear itself after a while.

     ________________________________

3. Fill in the blank in the last paragraph with proper words.

    (Please answer in less than 10 words)

     ________________________________

4. What do most people do to beat the bad mood according to the

    passage? Please suggest another way to remove the bad mood,

    (Please answer within 30 words)

     ________________________________

5. Translate the underlined sentence into Chinese.

     ________________________________

单项选择题