4．You may think that inventions are far away from your everyday life．But in fact，almost everyone can invent．It's just that they do not recognize that their idea could be the start of an invention．Once inventous see their ideas have some practical value，they don't let them slip away．For example，the inventor of the dishwasher，American Josephine Cochrane，loved to give dinner parties．But she found it took too long to wash her dishes by hand and to many of them broke．She decided that a machine could do the job faster and with fewer mistakes．So，in 1886，she set out to make one for herself．
Like Cochrane's，most inventions are created to solve a problem．So the first and most important step is to find the problem．You can start by looking at what is wrong with things you use now．You can ask grandparents or neighbours if they remember every saying："I wish someone would invent something for …"Or you can look at people in different areas such as on the street，or at school．Then you might notice situations or things in need of improvement．Remember to record your ideas and work．This will help you develop your invention and protect it when it is completed．The next step is to think about possible solutions．An invention is a new way of solving a problem．So think of many，varied，and unusual ways．You can often come up with a solution for a problem by looking at it from a different angle or thinking about it in a new way．
Example 1-instead of thinking of shoes as protecting your feet from the ground，think of using something to protect the ground from your feet．
Example 2-instead of thinking about how you can carry orange home from a store，think of how they can come to you by delivery or growing your own．
Example 3-instead of experimenting with only one solution，can you put two or three solutios together，or arrange them in different orders？
And if one solution doesn't work，can it be put to other uses？That was how yellow post-it note（N次贴）came about-a"failed"adhesive（粘合剂）experiment proved a weak adhesive had good uses too!
After all，most inventions are not brand new．They do not come out of nowhere，but come out of things or ideas that already exist．And the hardest part of inventing，even for a lot of inventors，is coming up with a problem and finding a solution．Once you have an idea，you can always get help building your invention．
This problem-solving technique can also work in your everyday life．So，why not try it in your studies，in your relationship with others，or even in the way you look at the world？
29．The main idea or this story is thatB．
A．you can learn some problem-solving technique from others
B．you must know how to improve the world around you
C．you can invent and how you will be able to do so
D．you must try to find out how to invent things
30．What makes inventors different from other people is thatB．
A．they consider every new idea as an outstanding invention
B．they are full of creative ideas and try to put them into reality
C．they enjoy solving problems even if these problems are too difficult
D．they look for problems and try to solve them in a new and better way
31．The underlined word"it"in the second paragraph can be replaced byA．
A．the problem
B．the way
C．the solution
D．the invention
32．Which of the following is one of the ways to find a problem？C
A．Finding out things that people are not satisfied with．
B．Trying to find problems while doing experiments．
C．Looking at the world from a different angle．
D．Never letting a practical idea slip away．
分析 本主要写了发明创造从改造我们身边的事物开始．
解答 29．B 主旨大意题．根据文章内容，主要讲述了You may think that inventions are far away from your everyday life．But in fact，almost everyone can invent．It's just that they do not recognize that their idea could be the start of an invention．你一定认为发明创造离我们很遥远，但是事实上，每个人都可以发明物品，只是他们没有意识到他们的想法其实就是新的发明创造的第一步，由此推断，我们要善于发明身边的人和事，尤其是新发明来改变世界，结合选项，故选B
30．B 细节题．根据文章内容，most inventions are created to solve a problem…And the hardest part of inventing，even for a lot of inventors，is coming up with a problem and finding a solution．大多数的发明家都是积极的有创造性的去解决一个问题，并且积极主动的将想法变为现实去解决问题，结合选项，故选B
31．A 词义猜测题．根据文章内容，You can often come up with a solution for a problem by looking at it from a different angle or thinking about it in a new way．你可以通过以一种新的思考方式或者思维角度来对一个问题提出解决方法，结合选项，故it替代的内容为the problem
32．C 细节题．根据文章内容，This problem-solving technique can also work in your everyday life．So，why not try it in your studies，in your relationship with others，or even in the way you look at the world？由此可知，以一种不同的角度来看这个世界，你就可以找到一个问题，并相应的提出解决办法，结合选项，故选C
点评 本文是一个社会文化类阅读，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
