第十篇 Working MothersCarefully conductedresearchestha have followed the children of working mothers have not been able to show any long- termproblems, ompared with children whose mothers stayed at home. My personal view is that mothers should be allowed to work if they wish. Whether we like it or not, thereare a number of mothers who just have to work. There are those who have invested such a big part of their lives in establishinga career that they cannot afford to see it lost. Then there are many who must work out of pure economic necessity . Many mothers are not cut out to be full-time parents. After a few months at home with a much loved infan, they feel trapped and isolated. There are a number of options when it comes to choosing childcare. These range from child minders and nannies) through to Granny or the kind lady across the street. In reality , however,many parents dont have any choice; they have to accept anything they can get. Be prepared! No matter how good the childcare may be,some children are going to protestwildly if they are left. This is a perfectly normal stage of child development. Babies separate well in the first six months,but soon after that they start to get a crush on Mum and close family members . Make sure that in the first week you allow plenty of time to help your child settle in. All children are different. Some are independent, while others are more attached to their mothers. Remember that if you want to do the best for your children, its not the quantity of time you spend with them，its the quality that matters*第七篇 The Difference between Man and Computer What makes people different from computer programs? What is the missing elementthat our theories dont yet account for? The answer is simple: People read newspaper stories for a reason: to learn more about what they are interested in. Computers, on the other hand, dont. In fact, computers dont even have interests; there is nothing in particular that they are trying to find out when they read. If a computer program_ is to be a model of story understanding, it should also read for a “purpose“. Of course, people have several goals that do not make sense to attribute to computers. One might read a restaurant guide in order to satisfy hunger or entertainment(n. goals, or to find a good place to go for a business lunch. Computers do not get hungry, and computers do not have business lunches. However, these physiological(adj. and social goals give rise to several intellectual(adj or cognitivegoals. A goal to satisfy hunger gives rise togoals to find information about the name of a restaurant which serves the desired type of food, how expensive the restaurant is,the location of the restaurant, etc. These are goals to _ acquire information or knowledge, what we are calling learning _ goals. These goals can be held by computers too; a computer might_ “want“ to find out the location of a restaurant, and read a guide in order to do so in the same way as a person might. While such a goal would not arise out of hunger in the case of the computer, it might well arise out of the “goal“ to learn more about restaurants.*第九篇 The First Bicycle 第一辆自行车第一 辆自行车The history of the bicycle goes back more than 200 years. In 1791, Count de Sivrac delighted onlookersin a park in Paris as he showed off his two- wheeled invention, a machine called the celerifer. It was basically an enlarged version of a childrens toy which had been in use for many years. Sivracs “celerifer“ had a wooden frame, made in the shape of a horse, which was mounted on a wheel at either endTo ride it, you sat on a small seat, just like a modem bicycle,and pushed hard against the ground with your legsthere were no pedals. It was impossible to steera celerifer and it had no brakesbut despite these problems the invention very much appealed to the fashionable young men of Paris. Soon they were holding races up and down the streets. Minor injuries were common as riders attempted a final burs of speed . Controlling the machine was difficult, as the only way to change direction was to pull up the front of the “celerifer“ and turn it round while the front wheel was spinning in the air. “Celerifers“ were not popular for long,however,as the combination of no springs(, no steering and rough roads made riding them very uncomfortable. Even so,the wooden celerifer was the origin of the modem bicycle.阅读理解： 第二十九篇 Ill Be Bach 我也能成为巴赫1. The music composed by David cope is about classicamusic. A Classical music2. By developing a computer software,David Cope aimed C to write an opera. 3. What did Cope realize about a great composers brain? D It creates an accurate database. 4. Who is Emmy? B a computer softw