问题 单项选择题

阅读下面短文,回答26-30题。
第一步就是明确爱是一种艺术,正如生活是一种艺术一样。 (①) 我们想知道如何爱, (②) 必须遵循我们学习其他任何艺术的同样方法,诸如学习音乐、绘画、木工或医学技艺及工程艺术的方法。
在学习任何一种艺术时,必要的步骤是什么呢
学习任何一种艺术的过程都能够适当地分为两个方面:一方面精通那门艺术的理论,另一方面熟悉那门艺术的实践。如果我想学习医学技艺,我必须首先了解人体结构和各种疾病,但当我具备了这一方面的全部理论知识时.根本不意味着我在医学技艺上是合格的。只有在大量实践的基础上,把我们的理论知识成果和我们的实践成果融为一体,即变为我的直觉——这是任何一门艺术的要素——之后,我在技艺上才变得精湛起来。当然除学习那门艺术的理论和实践外,为驾驭任何一门艺术,第三点也是必要的要素,即要使艺术精湛必须极其关心这一问题,在我的心中必须是:没有什么比此艺术更重要的事情。
这适用于音乐、医学、木工和爱的艺术。这里有着为什么在当代的文明中,人们很少尝试探究爱这门艺术的答案,尽管他们明显地失败,尽管他们对爱如饥似渴,但却又认为几乎每一件事都比爱重要:成就、名望、金钱、权利——几乎人们的所有精力都被用来研究如何实现这些目标,难怪乎没有谁来学习爱的艺术。

下列推断与作者本意相悖的是()。

A.对称性的精确数学定义涉及到不变性的概念

B.几何图形在某些操作下保持不变性,这个几何图形就具有对称性

C.正方形的对称性比圆的高

D.矩形的对称性比正方形的还要低

答案

参考答案:C

解析: 圆在绕它的中心时不论旋转多少度都是不变的,而正方形只有绕它的中心转90°、180°、270°和360°时才保持不变,可见圆的对称性比正方形高,故C错误。

完形填空

Children are used to the parties that consist of junk food, loud music and the like.However, today's environmental condition is serious, so to save our environment, we need to do our bit by making small changes in our activities like planning our kid's birthday parties in an eco-friendly manner.

The first idea for the "green" birthday party is selecting a "green" location.You can put some choices in front of your child like gardens, parks and farms and let him or her select one for the party.The benefit of choosing a natural outdoor location is that it doesn't require much decoration, which will save your money.Also, it'll bring your child close to nature.

Secondly, go "green" while you're listing out the required materials for the party. Use reusable and recyclable materials like cloth table covers instead of plastic.For decorations, avoid plastics by using natural things like plants, candles, etc.What's more, you can avoid using paper invitations and invite people by sending e-mail invitations to them.

Thirdly, plan the food according to the 'green theme.Serve delicious but healthy food to the guests.Fruits, vegetables and nuts can be the most appropriate parts in party food as they taste great, and are extremely healthy.Home-made cakes will also serve the purpose very well.

Lastly, conduct "green" activities.For giving children a learning experience, take them on a trip to the nearest farm and let them see the working system there.After the learning experience, let them play together in a park.Also children can make up stories which you can write down for them.These written pages will be colored by the kids and will be their return gifts.

Plan a unique but wonderful birthday party for your kid and enjoy.If we all contribute to this cause, soon we'll see our earth back in her green coat.

·Taking children to a farm or park to 80._________

·Taking down stories created by children, which will be their return gifts after being colored

III.Benefits

Planning a unique but wonderful birthday party helps save the earth.

判断题