题目内容
"What was in the letter？" "I don't know. I didn't like ______ it as it wasn't addressed to
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Compared with the robot, the human worker is undoubtedly superior. He is capable of performing a wider variety of work.
Moreover, he is able to adapt his working pattern in order to cope with changing situations which the robot cannot do. On the other hand, the human worker is relatively weak and cannot tolerate work in extreme conditions such as extremely high or low temperatures.
Consequently, we find humans and robots working together in many areas of work. Robots are used to perform. dangerous tasks so that their human operators need not risk their lives. To handle harmful radioactive materials, such as uranium (铀), robots in the form. of machined arms are used so the human operators can stay from the fatal rays.
Another advantage of the robot is that it never complains about long working hours or that it is boring. It works around the clock and performs equally well in any situation. It needs little servicing and absolutely no holidays. That is why many of them are used to replace human workers for simple and repetitive jobs. The car manufacturers, for example, were amongst the first to use robots to replace workers working on the assembly line. They take over such boring tasks as tightening nuts and screws and spraying paint. Released from these unrewarding tasks, the human worker can be trained for more fulfilling posts, where he can make full use of his ability and get satisfaction from them. The management, on the other hand, will also benefit from these "human pretenders" as they form. a new work force which is able to produce more at a lower cost.
Looking to the future, we can expect tomorrow's robots to be even more "intelligent" than those of today.
Humans and robots worked together in many areas of work because ______.
A great deal of the【43】and the listening that occurs【44】casual circumstances may seem to be【45】, in the sense that the discourse is relaxed, relatively formless, and expressive of strong and intimate feelings.【46】, such speaking and listening are highly valued. Normal individuals dread being deprived【47】companionship. If required to be【48】for a time, they may mm on the【49】or television, not to learn something,【50】not even to be entertained,【51】to feel the sociability of hearing human speech. The【52】purpose of much speech (including most【53】and many public speeches) is to knit together【54】closely and more pleasantly the ties of【55】.
(56)
When a consumer finds that an item she or he bought is faulty or in some other way does not live up to the manufacturer's claim for it, the first step is to present the warranty (保单), or any other records which might help, at the store of purchase. In most cases, this action will produce results. However if it does not, there are various means the consumer may use to gain satisfaction.
A simple and common method used by many consumers is to complain directly to the store manager. In general, the "higher up" the consumer takes his or her complaint, the faster he or she can expect it to be settled. In such a case, it is usually settled in the consumer's favor, assuming he or she has a just claim.
Consumers should complain in person whenever possible, but if they cannot get to the place of purchase, it is acceptable to phone or write the complaint in a letter.
Complaining is usually most effective when it is done politely but firmly, and especially when the consumer can demonstrate what is wrong with the item in question. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example, "The left speaker does not work at all and the sound coming out of the right one is unclear" is better than "This stereo (立体声音响) does not work."
The store manager may advise the consumer to write to the manufacturer. If so, the consumer should do this, stating the complaint as politely and as firmly as possible. But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or public organization responsible for protecting consumers' rights.
When a consumer finds that his purchase has a fault in it, the first thing he should do is to ______.
What is color？ Why do some objects look red, others green, others blue？
Color is caused by reflected light rays. We see color because objects reflect light. Some thing that is red reflects mostly red light. In the same way, a green object reflects mostly green light. White objects reflect all colors of light. Black objects do not reflect any light.
What happens to the colors of light that are not reflected？ They are absorbed by the object. The darker the color, the less light is reflected and the more light is absorbed. Light that is absorbed is turned into heat. For this reason, dark-colored clothes are warmer in the sunlight than light-colored clothes.
Which is the main idea of this passage？
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