M7U1-U4課文內(nèi)容填空.doc

.M7U1 The evolution of video and sound devicesEarly history of TV Many different people _ to the development of TV. Most early TV broadcasts were made _ a system developed by John Logie Baird in the UK. However, his system was very _ and had many _. An American, Phino Farnsworth, made important _ in the development of TV. Modern TV use many of the _ first discovered by Farnsworth.Sb _ the first color TV in 1928, but it was not until 1938 that the first color TV programs was _. It took more than two decades, though, until 1951, for _ color TV broadcasts to begin in the USA. Regular color TV broadcasts were _ in the UK until 1967. However, _ a short time nearly all TV broadcasts were made in color, and within five years more color TVs than black-and-white TVs were being used.The modern age: satellite TV Satellites were used to broadcast TV beginning in 1962. Satellites _ TV to be broadcast _ over vast distances, with everyone _ the same broadcast at the same time. They also make TV _ to people who live far away from cities, and satellite dishes can often be seen _ throughout the countryside and _ areas. Of course, only a small percentage of people _ satellite dishes. However, most people still _ from satellite TV, as local TV companies broadcast the signals they get from satellite receivers to the population _ by.Early history of sound recorders It all began in 1877, _ sb made the first recording of a human voice on his invention, the record player. Early record players used round tubes to _ on. However, in 1887 sb, a German living in the UAS, _ a record player that use discs as _ to tubes, and so the modern record player was born. The first record players had to be _ up by hand and only played records that were two minutes long. Timely surely have changed.Sound and video recorders In 1928, the first tape recorders _ to copy sound were made in Germany. Most early recorders _ steel tape to record on, which made them heavy and _ to use, or paper tape, which is easier to use but often _. It was not until the early 1950s that most tape recorders began using plastic tape as they do today. Meanwhile, electrical _ eventually became so small that, by the late 1960s, _ cassette players were developed, along with video recorders which were used by TV stations. By the late 1970s, video recorders small and cheap enough for home use were _.Sound and video go digital In 1982, the first CDs were made _. CDs are often used for _ and playing music because they have a much better sound _ than traditional records and cassettes. In 1993, the VCD was born, and in 1995, the DVD was invented. The DVD is now the _ for recording and playing back video.The future With the development of _ technology, sound and video can now be _ on a PC, on the Internet, or using some form of _ storage. This will soon make records, cassette recorders, CDs, DVDs, and even TVs things of the past. Technology is now changing faster than most people can keep _ with. Who can _ what the future will bring?二、翻譯1 很難預(yù)知未來會(huì)發(fā)生什么？2 經(jīng)過認(rèn)真考慮， 我們最終還是拒絕了他在會(huì)議上提出的建議。3 他投票贊成這一決定只是因?yàn)樗麤]有其他選擇。4 她隨意的衣著不適合這個(gè)重要的典禮。5 我不認(rèn)為女性應(yīng)該為了家庭而犧牲獨(dú)立性。6 住在主干道旁邊的主要的缺點(diǎn)是喧囂的雜音。7 很顯然， 定期運(yùn)動(dòng)是健康生活的重要組成部分。8 在這樣的情況下，他開始懷疑自己的判斷。 M7Unit 2 two life-saving medicinesThis article will focus on two drugs that started _ in medicine . If you _ up any medicine cupboard or go to any medicine counter in the world , it is likely that you find aspirin and penicillin . Both of these medicines have saved millions of peoples lives and have proved _ to mankind since they were invented .Aspinrin was_ in 1897 . However , the basic chemical used to make aspirin can be found in nature . Nearly 3,5000 years ago , people _ on leaves or drank a kind of tea made from leaves _ a special chemical to _ body pains and fever . About 2,5000years ago , the Greek physician Hippocartes , father of all doctors , made a juice from a tree bark _ salicylic acid for the same _ . It was in 1897_ a European _ called Dr Felix Hoffmann produced aspirin from this chemical . The first _ of this medicine took place in 1899 , when the company Hoffmann worked for began _ the medicine in _ form to physicians to use with patients . A year later , in 1900, aspirin was sold in shops in the form of_ . Within a short time , aspirin became the _ medicine in the world for pain _ . Not only has aspirin proved _ for reducing fever and helping stop pain , but there are also other things that aspirin can help with . Lawrence Craven , a doctor form the USA , introduced the idea in 1953 that aspirin had the _ to reduce the risk of heart attacks , because it helped the blood _ better . The report was _ . However , in 1971 , Smith and Willis from the UK proved that aspirin could have that effect , and in 1977 a study _ out in the USA showed that aspirin could prevent strokes , Eleven years later , Dr Thun from the USA showed that aspirin could _the risk of some cancers by 40 percent . In 1999 , aspirin was over 100 years old , and yet there have been more discoveries about how it can help increase the _ of peoples lives . In 2003 , a Chinese doctor , Dr Yuan Mingsheng , found that aspirin could reduce blood sugar levels and , therefore , help people with _ . Another drug that has helped increase the _ of peoples health is penicillin , which is considered by many to be one of the most important medicines in _ society . It was discovered by a Scottish scientist named Alexander Fleming in 1928 . He noted that a dish in which he was trying to grow _ for an experiment looked _ - there was blue _ in it . It astonished him to see the bacteria surrounding the mould dead , which meant that the mould had _ them . Fleming tried this mould _ on another bacterium and found that it killed that bacterium too . He immediately realized that the mould might have an _ in treating illnesses caused by bacteria . He _ the liquid made from the mould penicillin “. However , the development of penicillin as a drug faced two problems . First , he was unable to find a _ to make penicillin pure enough to work as a medicine . Second , it was difficult to produce penicillin in the ample _ needed to be effective . In 1940 , two other scientists helped solve these problems , and managed to make and test the new drug in large quantities . Since the new drug was needed for World War , the government approval process for penicillin was _ , and mass _ began in 1944 . _ to the widespread use of penicillin , many lives were saved during the war . If penicillin had not been _ , many people would have died _ sickness for even small wounds . Penicillin became the greatest drug of the 20th century , saving millions of lives .翻譯句子1. 我們高興地看到這一科學(xué)變革加速了社會(huì)的發(fā)展.2.她擁有許多可貴的品質(zhì),這些品質(zhì)對(duì)她的成功是至關(guān)重要的.3.我認(rèn)為他有在這個(gè)領(lǐng)域成為專家的潛力.4.我發(fā)現(xiàn)丹尼爾的行為有點(diǎn)反常,但猜不出為什么.5.只有少數(shù)的專家贊同這些問題不會(huì)持續(xù)太久的觀點(diǎn).6.我們非常驚訝地發(fā)現(xiàn)有人改變了房間內(nèi)家具的擺放. 7.當(dāng)在電視上看到我們的國(guó)旗在奧林匹克運(yùn)動(dòng)會(huì)上升起時(shí),我們發(fā)出了一陣歡呼聲.8.這個(gè)項(xiàng)目被推延了,因?yàn)槲覀冞€沒有得到政府的批準(zhǔn).Unit 3 The Internet has positive effects on our livesMy name is Zhu Fei and I am speaking in of the InternetI believe that the Internet has on our lives. There are two main which must be included when we analyse the Internet. The first is its for people who are looking for information. The second is our to others through the Internet. When people need information, from the news and weather forecasts to travel packages and academic research ,the Internet is now the first they . With the touch of a button or the of a mouse ,a student will find information from the largest libraries and museums in the world at his or her .Internet users can communicate with experts on all sorts of topics, and read articles written by people who are leaders of their fields.Yet, some people are .They that surfing the Internet is a waste of time. They make the that children spend too much time chatting and playing games instead of focusing on their school work. However, a recent survey in the USA shows that 80 per cent of Internet users it mostly to search for answers to questions. The second most use of the Internet, for 79 per cent of Internet users,is to find out information about hobbies. These prove that gathering information is the primary use for the Internet.Another truly wonderful aspect of the Internet is the people use it to build social .One of the greatest benefits of Internet friendships is that they are on common interests, appearance or age. Young people from backgrounds and different countries can form friendships that will last their entire lives. ，people who are disabled and must stay in their homes can and communicate with others around the who have similar interests. Without the Internet, these people would have fewer to meet people. For these reasons, I believe the Internet is a positive tool that helps make our lives better.The Internet has effects on our livesMy name is Li Lei and I will be speaking the Internet. In my opinion, the Internet has negative effects on our lives. The main of the Internet I will today are that it has too much information that has not been for ,and that it is the way people spend their time.Of course, up-to-date, accurate information is an important thing for anyone who is doing research. One great of the Internet is that it provides information . One great of the Internet, ,is that it is difficult to know whether the information is true and accurate. The huge amount of false information on the Internet becomes a problem every day. This is very because we cannot always tell if the information is true or not. In 2003,eBay,a famous website where people buy and sell things, said that 70 per cent of their problems were with people who sold things that did not exist, or who the products they were selling. Educators around the world complain that student are papers using information they found on the Internet. These problems do not as often when people use traditional materials, such as books, newspapers and magazines.Another disadvantage of the Internet is the way that it is affecting peoples private lives . Now, spending time together in the evening, some families spend their time apart because one or more members are using the computer, or are in a at an Internet caf.In fact, some young people spend so much time playing computer games on the Internet that they have become to them. To help solve this problem, a clinic was opened in Beijing in 2005.One unfortunate of Internet use is that it damages peoples ability to live normal lives. One university did a study about the students who had ,and found that 43 per cent of them were heavy Internet users. This study shows that people who spend too much time on the Internet tend to the people and the world round them.These are all negative effects the Internet has on our lives. I feel it is important for us either to limit our use of the Internet, or to learn how to the problems it has caused.翻譯句子1、來自不同文化的人有時(shí)很難相互理解。（diverse） 2、他對(duì)那天晚上事情的描述和兩名目擊者的描述不相符。（correspond） 3、該醫(yī)學(xué)報(bào)告中數(shù)據(jù)的精確性使許多人成為這一理論的支持者。（accuracy） 4、我沒有看到他的工作情況，因此不能評(píng)價(jià)他的能力。（evaluate） 5、在寫文章之前，你應(yīng)當(dāng)就你想寫的內(nèi)容列個(gè)提綱。（outline） 6、在這次大會(huì)上，該知名教育學(xué)家就如何幫助邊遠(yuǎn)地區(qū)的輟學(xué)學(xué)生提出了一些建議。（drop out） 7、別擔(dān)心，你任何時(shí)候有困難都可以找我?guī)兔Α＃╰urn to） 8、由于他的杰出成就，他被歸于我們這個(gè)時(shí)代最偉大的科學(xué)家之列。（classify）Module 7 Unit 4The first underground in the worldWelcome to the London Underground, or as it is usually known, the tube. It has the d_ of being the oldest and most complex underground system in the world. Rail services to London were first developed during the first half of the 19th century. However, most trains to London only went to the outer city limits, because building railway tracks into the city would have damaged many old buildings. Horse-drawn buses, trams, cabs and carriages were used to c_ people to and around the city centre. U_, the number of vehicles on the road caused u_ traffic jams, and the roads became so busy that no one could travel anywhere. This traffic problem led to the development of the underground system.In 1854, the British government gave a_ to the construction by the Metropolitan Railway Company of an underground railway in the centre of London, between Paddington and Farringdon, via Kings Cross, St Pancras and Euston. However, new trains had to be developed and the plan required raising a large amount of money, so the digging was p_ until 1860. The initial tunnels were opened in 1863 and were just beneath the surface of the ground. Passengers were transported in carriages without windows, which were pulled through the narrow tunnels by steam engines. In 1868, the next section of the underground system was opened in the south of London by another company called the Metropolitan District Railway. Sixteen years later, in 1884, the Metropolitan Railway Company and the Metropolitan District Railway l_ up and provided underground service in the middle of the city. This later became the Circle Line. Because of the smoke from the steam engines, early underground lines needed large holes leading to the surface at regular i_, so that people could get fresh air and would not c_.As better ways for digging tunnels were developed, the first railway tunnel under the River Thames was dug in 1884. These new ways of digging accelerated the pace of the London Undergrounds development. The City and South London Railway opened the first electric underground railway in 1890. Over the next twenty-five years, six independent deep underground lines were constructed. Travelling on these lines was not convenient, though, as each line was possessed by a different company, and many were very far from each other. Having seen the situation, a wealthy American businessman, Charles Yerkes, u_ the job of improving the system in 1902 by obtaining o_ of the many different lines and setting up the Underground Electric Railways Company of London. In 1933, a public organization called the London Passenger Transport Board was created. The Underground Electric Railways Company of London, the Metropolitan Line and all the different bus and train lines were placed under the a_ of the Board. This organization eventually became London Transport. Between 1918 and 1938, many new stat