From the beginning of human history, people have used oils from seeds and nuts. Most of the time these oils are used as food, especially in cooking. But sometimes they have other uses. For example, oils are used in paint and in cleaning products like soap. Oil is separated from seeds by using pressure. A machine called a press is often used. The first step in pressing the oil from seeds is to crush the seeds between two stones. The crushed seeds are then put into a cloth bag and the bag is hung up. Some of the oil will flow out of the bag and can be collected. But some oil will remain in the crushed seeds inside the bag. The easiest way to get the rest of the oil out is to place heavy rocks on the crushed material. Another method is to place several cloth bags on top of each other in a box. Then a long wooden stick is used to slowly push a heavy cover down on the bags. Great pressure is produced in this way. Much greater pressure can be produced by using a machine, a hydraulic jack (液压千斤顶). The greater the pressure, the more oil win be produced. Small presses are important in areas where electricity or gasoline cannot be used. They are also a good way to test if a local market for oil exists. Small batch presses can be made of local materials. Their cost is low. They are not difficult to operate. And they are easy to repair. The small presses produce good quality oil. But the work is hard. And getting all the oil from the seeds can be difficult. If there is a large supply of seeds, then hand-operated presses may not be enough to support a business. Large, powered presses that can operate all day are needed. |
Title | How to 1.______ Oil From Seeds | 2.______ of oil | People use oils when they cook meals, paint pictures and clean objects. | Method l | ●Crush the seeds between two stones and then put them into a cloth bag. ●3.______ the cloth bag up. Some of the oil will flow out of the bag. ●The 4.______ oil in the seeds can be got by putting more heavy rocks on them. | Method 2 | ●A box is used to 5.______ several bags of seeds. ●Place a heavy cover on the bags. ●Use a long wooden stick to push the cover slowly. ●The 6.______ of oil relies on the pressure placed on the bags. | Small batch presses | ●They are at a low 7.______ ●They are easy to operate and repair. ●They can be used in areas 8.______ of electricity or gasoline. ●They can be operated by hand very conveniently. ●They can produce good quality oil. | Large 9.______ presses | ●It is easy to get all the oil from the seeds. ●They can 10.______ with a large supply of seeds and support a business. ●They can run all day. | 阅读表达。阅读下面的短文,并根据短文后面的要求答题。(请注意问题后的字数要求) | For years children in the industrial areas of Europe and America seldom left their smoky cities to see the beauties of the countryside. Not that the woods and fields were always far away, but they were too far from the city to permit people to make a round trip between morning and nightfall. What"s more, factory workers did not have enoug money to send their children on country holidays away from home. In 1907 a young German schoolmaster had an idea which changed this state of affairs. He decided to turn his little schoolhouse into a domitory for the summer holidays. Anyone who bmught his sleeping bag and cooking equipment along could stay there for a very smaU amount of money. The idea was a success. A few years later the schoolhouse was far too small to hold so many young people who wanted to stay there. So, a dormitory was set up in an old caste nearby. This was the first Youth Hostel. Today young students and workers of every country can meet in the hostels and get to know each other. Some spend a week or more in the same hostel, seeing the surrounding sights and meeting the people of the area. Other youths go on foot or by bicycle from place to place, spending a night or two in one hostel, then going to the next. Sometimes an infomal program will be organized after the meal, with dances, songs, or short talks followed by a question period. One can _____ about other places, just by meeting people who come from these places. For this reason, a few weeks spent "hostelling" can be just as useful a part of one"s education as classes in school. | 1. Translate the underlined sentence in paragraph l into Chinese. _______________________________________________________________________________________ 2. What does paragraph 2 mainly tell us? (Please answer within 10 words) _______________________________________________________________________________________ 3. Which sentence in the text is the closest in meaning to the following one? Some youths stay in a hostel for several days, during which period they go sightseeing and visit the local people. _______________________________________________________________________________________ 4. Fill in the blank in the 4th pamgraph with proper words to complete the sentence. (P1ease answer within 7 words) _______________________________________________________________________________________ 5. List 3 of the advantages of hostelling according to the text. (Please answer within 15 words) _______________________________________________________________________________________ | 完形填空。 | Drama (戏剧) and the performing arts are excellent methods of building confidence in children and adults alike. Learning through drama allows children to 1 their creativity and have fun while leaving their 2 and worries behind. Drama also wrorks by supporting the growth of imagination and other skills. Entertainment has become rather passive with 3 , television and video games becoming more popular. These screen-based methods have had a 4 effect on communication. They prevent children communicating with others. 5 , drama puts the children emhusiastic about communication back into entertainment. Children have the opportunity to 6 with others in a more rneaningful way 7 drama encourages speech development, awareness of body language and allows children to become more 8 aware. Play and drama are closely linked. When children play a game, they are using their 9 and so are moving away from reality to 10 their own story. Drama is a vehicle 11 which children can express themselves rnore freely to make education fun. Children gain 12 by understanding that there is no final answer in drarna and that their opinion and contribution are valued. They are able to 13 to rmny issues and situations such as poverty, recycling and global warming.Drarm and 14 have a stmng link as drama can 15 children to take an active interest in other subjects such as geography, history and English and so they can 16 a more rounded education. As a drama teacher, I have witnessed a child at his first class holding on to his parent"s arm 17 to let go. Then to see the same child running into my class with a smile is an 18 sight. Drama installs confidence in children by allowing them to improvise (即兴创作) and experiment. Everyone is given the opportunlty to shine 19 drama. Besides learning the history of the theatre, drama 20 dance, music, and directing, etc. These classes are especially designed to be of great fun. | ( )1.A. express ( )2.A. depression ( )3.A. cinema ( )4.A. positive ( )5.A. However ( )6.A. compare ( )7.A. though ( )8.A. mentally ( )9.A. determination ( )10.A. create ( )11.A. through ( )12.A. success ( )13.A. stick ( )14.A. language ( )15.A. persuade ( )16.A. have ( )17.A. tired ( )18.A. ordinary ( )19.A. over ( )20.A. possesses | B. expose B. happiness B. radio B. negative B. Besides B. discuss B. as B. physically B. consideration B. tell B. beyond B. hope B. turn B. education B. require B. continue B. unwilling B. excellent B. above B. applies | C. experience C. shyness C. media C. sensitive C. Therefore C. connect C. if C. emotionally C. communication C. read C. across C. admiration C. respond C. play C. encourage C. provide C. sorry C. odd C. after C. covers | D. explore D. sadness D. drama D. subjective D. Meanwhile D. compete D. before D. socially D. imagination D. believe D. for D. confidence D. reply D. entertainment D. train D. give D. pleased D. imaginary D. within D. links | 阅读理解。 | The New York Times, the Wall Street Journal, Financial Times and some other newspapers have published articles indicating that cyber attacks targeting Google and several other U.S. companies were from China. Such accusations are biased (有偏见的). These anicles take as evidence that hackers" IP addresses could be traced back to two schools in China. However, it is common sense that hackers can attack by contmlling computers from anywhere in the world. This fact also explains why hackers are hard to be tracked down. Computers in China are easy to be controlled by hackers as the majority of Chinese Internet users lack security awareness and adequate protection measures. The hackers" IP addresses could by no means vindicate (证明正确) the newspapers" accusations that the attacks were carried out by Chinese citizens or from within China. The New York Times says one of the schools from which the cyber attacks were said to originate has military support. Another school "has received financing from a high-level government science and technology project." The New York Times went to great lengths to mention that "graduates of one of the school"s computcr science department are employed by the local military each year." The paper, howevcr, did not care to tell its readers that a school in China does not need to have any special relationship with the military to have its graduates in uniform. It is also true in the United States, where the New York Times is based. China"s attitude toward cyber attacks has been unequivocal and has adopted laws against such crimes, as China is one of the countries that suffer from cyber attacks. The U.S. government, on the other hand, takes an uncertain attitude toward cyber attacks. According to media reports, the U.S. Homeland Security and Defense departments have both openly employed hackers. People with a "blackhat perspective" and knowing how to "do threat modeling" are the best choices, said Philip Reitinger, Department of Homeland Security deputy undcrsecretary, at an information security conference last October. Cyber crimes could cause immense losses to individuals, companies and nations. Effective supervision (监 督) and closer international cooperation are ways to improve cyber security. Finger pointing is not. | 1. The passage is intended to tell us that _____. | [ ] | A. IP addresses are often used as evidence to track down hackers B. it"s not necessary for schools in China to contact the military C. the U.S. government openly employ hackers to deal with cyber attacks D. the accusations of cyber attacks against China are unreasonable and irresponsible | 2. The underlined word "unequivocal" in Paragraph 7 means _____. | [ ] | A. clear B. negative C. supportive D. vague | 3. We can conclude from the passage that _____. | [ ] | A. international cooperation and finger pointing are called for to ensure cyber safety B. people skilled at doing threat modeling don"t have security awareness C. some hackers work for the U.S. Homeland Security and Defense departments D. hackers are difficult to catch because they can cause lots of losses to people | 4. The passage is organized by _____. | [ ] | A. raising questions and analyzing figures B. making descriptions and giving explanations C. presenting opinions and providing arguments D. giving definitions and explaining details | 阅读理解。 | Many do-it-yourself homeowners are interested in trying out solar power to learn about the technology and perhaps to provide energy for limited-use applications. There are a variety of ways to find cheap solar panels (板), including buying used and building your own with factory seconds. Both methods will save money while forcing you to learn the ins-and-outs of a solar power array (阵列). We"ve all seen solar-powered street signs or PV panels being used for various purposes at remote locations. When those units become cracked or chipped and- are considered "unsafe", companies are forced to replace them, generally to avoid responsibility issues. Because it"s difficult to get rid of PV panels, many | |
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