【优化指导】（课标全国）高考英语总复习 课时作业20 北师大版

1 优化指导优化指导 课标全国 高考英语总复习 课标全国 高考英语总复习 课时作业课时作业 2020 北师大版北师大版 一 阅读理解 A 2012 河南九校联考 It s a goal for millions and millions of families every year keep the Christmas spending within a certain amount but can still afford the gifts that your loved ones will enjoy Never has this concern been greater in recent years than right now Even so there are several things that you can do to help Hit the sales No one wants to get up at four o clock in the morning and fight to get the best deal on Black Friday and it s surely very tough to pick up the courage and get out there in the cold for a good deal but sometimes it can be well worth Many retailers 零售商 offer specials all through the day and some even offer online Black Friday specials so you may still be able to get a great deal on Black Friday Pay close attention to advertisements Once the Christmas shopping season is coming retailers hungry for business will do just about whatever to get you in the store Pay very close attention to weekly advertisements of sales among the major retailers and you may be lucky enough to find different prices for the same thing in different shops Shop online Some of us don t like running from store to store in order to get the best price on the perfect gift and some of us don t like to go out in the cold at all thankfully for us we can do online shopping The world of online shopping lets people visit all the major retailers as well as some specialty stores that could only be found on the Internet Customers can find exactly what they are looking for at the best possible price without ever having to leave the house With traditional Christmas shopping consumers are sometimes limited to what s left in stock if 2 they wait too long to get to a particular store 1 The first paragraph implies that A nowadays not many people can afford expensive gifts B recently many people don t want to spend money on gifts C Christmas is a time to make our loved ones enjoy their gifts D Christmas is a time to make us feel free to buy our loved ones gifts 2 In the writer s opinion it is rewarding on Black Friday A if the weather is not very cold B if we don t have to fight for the best deals C if we don t have to get up early D if we get what we want at a good price 3 We can have more choices A on Black Friday B in a particular store C on the Internet D from retailers B In the rush to get to school you drop a piece of toast on the floor Do you throw it away or decide it s still OK to eat If you re like most people you eat it Maybe you follow the 5 second rule which claims foods are safe to eat if you pick them up within 5 seconds from dropping them But you might want to think again Scientists now say that 5 seconds are all it takes for foods to become contaminated 被污染的 with enough bacteria to make you sick Bacteria are single celled organisms that can cause many kinds of illnesses Some kinds of bacteria can grow on food If we eat foods on which these bacteria are growing we can become sick Common symptoms include vomiting 呕吐 and diarrhea 腹泻 One of these food borne bacteria is Salmonella 沙门氏菌 It makes 1 4 million people sick every year Earlier this year 370 people became sick after eating peanut butter that had been contaminated with Salmonella at the manufacturing plant Salmonella are often found in raw eggs and chicken Cooking kills these bacteria which is why it is so important to cook eggs chicken and other foods thoroughly Being a good housekeeper is a second tip for preventing infection If household surfaces aren t washed thoroughly they can support Salmonella for 3 weeks But how long does it take these bacteria to attach to food To answer that question a team of scientists at Clemson University in South Carolina decided to test the 5 second rule using sandwich ingredients First they placed a known amount of Salmonella cells on three surfaces wood tile and carpet They placed a slice of bread and a slice of bologna on each surface for 5 30 or 60 seconds After just 5 seconds both the bread and bologna picked up enough bacteria to make you sick So forget the 5 second rule If your toast lands on the floor toss it out 4 What is a 5 second rule A If you drop food on the ground you can t eat it unless you pick it up within five seconds B If you drop food on the ground you can t eat it unless you pick it up five seconds later C If you drop food on the ground you can eat it even you pick it up five seconds later D If you drop food on the ground you can eat it at any time after you pick it up 5 According to the text which of the following statements about bacteria is NOT correct A They can cause many kinds of illnesses B They are single celled organisms C They can grow on the surface of food D They only can be found on food 6 How can people avoid the infection of Salmonella A Never eat peanut butter B Never eat chicken and eggs C Never eat food unless they re cooked D Wash hands before dinner 7 Why did the scientists at Clemson University make the experiment A Because they wanted to see if Salmonella cells can grow on such kind of food B Because they wanted to see whether the 5 second rule is correct or not C Because they wanted to find out the best food among the three 4 D Because they wanted to see whether bacteria can make one sick or not 二 短文填空 根据短文内容 从短文后的选项中选出能填入空白处的最佳选项 选项中有两项为多 余选项 There is an English saying 1 Until recently few people took the saying seriously Now however doctors have begun to look into laughter and the effects it has on the human body 2 Tests were carried out to study the effects of laughter on the body People watched funny films while doctors checked their hearts blood pressure breathing and muscles It was found that laughter has similar effects to physical exercise 3 If laughter exercises the body it must be beneficial Other tests have shown that laughter appears to be able to reduce the effect of pain on the body In one experiment doctors produced pain in groups of students who listened to different radio programs The group that tolerated 忍耐 the pain for the longest time was the group which listened to a funny program 4 5 They have found that even if their patients do not really feel like laughing making them smile is enough to produce beneficial effects similar to those caused by laughter A Laughter can prolong one s life B As a result of these discoveries some doctors in the United States now hold laughter clinics in which they help to improve their patients condition by encouraging them to laugh C The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish both stress and pain D It increases blood pressure the heart beating and breathing it also works several groups of muscles in the face the stomach and even the feet E Although laughter helps cure the disease doctors still can not put this theory into clinic practice F Laughter is the best medicine G They have found that laughter really can improve people s health 1 2 3 4 5 5 三 短文改错 假定英语课上老师要求同桌之间交换修改作文 请你修改你同桌写的以下作文 文中 共有 10 处语言错误 每句中最多有两处 每处错误仅涉及一个单词的增加 删除或修改 增加 在缺词处加一个漏字符号 并在其下面写上该加的词 删除 把多余的词用斜线 划掉 修改 在错的词下划一横线 并在该词下面写出修改后的词 注意 1 每处错误及其修改均仅限一词 2 只允许修改 10 处 多者 从第 11 处起 不计分 Yesterday afternoon Frank was told me about his experiences as a young man Frank is now the head of a very large business company But when a boy he used to work in a small shop It was his job to repair bicycles and at that times he used to work fourteen hours one day He saved