问题 单项选择题

经过天文学界多年的争论,冥王星终于“惨遭降级”,被驱逐出了行星家族。从此之后,这个游走在太阳系边缘的天体将只能与其他一些差不多大的“兄弟姐妹”一道被称为“矮行星”。想当年,冥王星和海王星的发现都是根据:()

A.哥白尼日心说的推算

B.牛顿理论推测

C.法拉第学说的计算

D.爱因斯坦对时间、空间属性的揭示

答案

参考答案:B

解析:A不对,“日心说”本身从科学角度看就有缺陷,而且与冥王星和海王星的发现无关;C不对,法拉第提出电磁感应学说;D不对,爱因斯坦对时间、空间属性的揭示属相对论,也与题意无关;冥王星和海王星的发现都是根据牛顿的万有引力定律。考点:本题考查近代西方科学。

阅读理解

判断正(T)误(F)。

     Fruit and vegetables should be a part of what we eat every day. Educating your children about the

importance of eating fruit and vegetables is important for their health. Here are some fun activities to

help you teach your children about fruit and vegetables.

     ★ Reading is one excellent way. Choose a colorful book with many different types of fruit and vegetables.

     ★ Provide your children with fruit and vegetable puzzles. Your children will be able to see what fruit and 

vegetables look like as they're putting the puzzles together. You can also teach them the different names of

fruit and vegetables.

     ★ Each day give your children different fruit and vegetables to eat. This will give them the chance to

taste many kinds of fruit and vegetables. Talk to your children about what they look like and how they taste

and smell.

     ★ Play fruit and vegetable games. Prepare little cups with fruit and vegetables cut up into small pieces.

Cover your children's eyes and give them one of the cups to try. After tasting, they have to guess what kind

of vegetable or fruit it is.

     ★ Grow vegetables. You can teach your children how vegetables grow by planting them. Your children

will also learn how to take care of vegetables.

( )1. Reading is a good way to help your children know about fruit and vegetables.                 

( )2. The puzzles can help children know how fruit and vegetables taste and smell.                

( )3. By playing fruit and vegetable games, children can know what fruit and vegetables look like.

( )4. Growing vegetables can teach your children how to look after vegetables.                    

( )5. The passage is mainly about the advantages of eating fruit and vegetables.                  

单项选择题