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1、Unit 2 English around the world李仕才*阅读理解The first potatoes were grown by the Incas of South America, more than 400 years ago. Their descendants(后代) in Ecuador and Chile continue to grow the vegetable as high as 14，000 feet up in the Andes Mountains. (Thats higher than any other food will grow.) Early
2、 Spanish and English explorers shipped potatoes to Europe, and they found their way to North America in the early 1600s.People eat potatoes in many waysbaked, mashed, and roasted, to name just three. However, in the United States most potatoes are eaten in the form of French fries. One fastfood chai
3、n alone sells more than $1 billion worth of fries each year. No wonder, then, that the company pays particular attention to the way its fries are prepared.Before any fry makes it to the people who eat at these popular restaurants，it must pass many separate tests. Fail any one of these tests and the
4、potato is rejected. To start with, only Russet Burbank potatoes are used. These Idaho potatoes have less water content than other kinds, which can have as much as 80 percent water. Once cut into “shoestrings” shapes，the potatoes are partly fried in a secret blend of oils, sprayed with liquid sugar t
5、o brown them, steam dried at high heat, then flash frozen for shipment to individual restaurants.Before shipping，every shoestring is measured. Forty percent of a batch must be between two and three inches long. Another 40 percent has to be over three inches. What about the 20 percent that are left i
6、n the batch? Well, a few short fries in a bag are okay，it seems.So，now that you realize the enormous size and value of the potato crop, you can understand why most people agree that this part of the food industry is no “small potatoes”【解题导语】本文介绍了土豆被引进美国的历史及炸薯条在美国食物产业中举足轻重的地位。1Potatoes in North Ameri
7、ca came directly from AChileBEuropeCEcuadorDthe Andes MountainsB解析：细节理解题。根据文中第一段最后一句可知，北美最早的土豆来自欧洲。故选B项。2Why does the company pay special attention to the way the fries are prepared?ABecause selling fries is a big business.BBecause fries are not easy to prepare at all.CBecause Americans are particul
8、ar about fries.DBecause the government has a strict rule for that.A解析：推理判断题。根据第二段的One fastfood chain alone sells more than $1 billion worth of fries each year. No wonder, then, that the company pays particular attention to the way its fries are prepared.可知，在美国，炸薯条是个很大的行业，所以会被特殊关注。故选A项。3In the last p
9、aragraph, the writer mainly wants to say Asmall potatoes cannot be used for friesBpotatoes are really important for AmericansCeating in America is the very first thingDfries are really important for food industryD解析：推理判断题。根据最后一段中的内容this part of the food industry is no “small potatoes”可知，在美国，炸薯条在食品产业
10、中不是“小土豆”(无足轻重的东西)，由此可推测，炸薯条在食品产业中占有重要的地位。故选D项。4What is the main idea of this passage?AThe average American eats 50 pounds of potatoes a year.BFrench fries are made from potatoes.CPotato is a key vegetable in America.DThe various terms for potatoes have a long history.C解析：主旨大意题。根据全文内容可知，在美国，土豆可以有多种吃法
11、，尤其是炸薯条，深受人们的欢迎，也因此带来了强大的商业利润，在食品产业中占有重要地位。因此，本文的主旨是，在美国土豆是很重要的蔬菜。故选C项。*语法填空Theres no such thing _1_ living alone. Never mind if youre the only person in your house and have no dog, no cat, or even no fish. You still have got several billion _2_ (roommate) and so do we all. Some of them are harmless
12、, some are _3_ (actual) helpful and some could even kill you. They are, of course, bacteria, fungi (霉菌) and viruses, and whether you like it or not, theyre on you, around you, and deeply within you. The fact _4_ bacteria are everywhere is not surprising. Its something you _5_ (learn) from your child
13、hood when your mother told you not to drink water from someone elses glass. There are lots of bacteria _6_ are living in your tea kettle. There are bacteria _7_ (sleep) with you on your bed. Scientists are beginning _8_ (realize) the richness of the microbiome (微生物群系), which is as complex as the one
14、s _9_ (find) in oceans, rainforests, deserts and woodlands. Your house has a microbiome and _10_ do you.1_2._3._4._5._6._7._8._9._10._篇章导读：本文是一篇说明文。世上没有真正独自的生活，即使你单独在家，家里没有狗、猫或者鱼，你身边还是有成千上万的陪伴者各种细菌、霉菌和病毒。1as考查固定结构。There is no such thing as . “没有像这样的事”。2roommates考查名词的复数。roommate为可数名词，由several billion
15、可知，应用复数形式。3actually考查词性转换。此处应用副词修饰形容词helpful。4that考查同位语从句的连接词。根据语境可知，本句中含有由that引导的同位语从句，解释说明The fact的具体内容。5learned/learnt考查动词的时态。根据下文中的told可知，应用一般过去时。6which/that考查定语从句的引导词。分析句子结构可知，空处引导定语从句，先行词为bacteria，指物，关系词在从句中作主语，故用which或that。7sleeping考查非谓语动词。bacteria与sleep存在逻辑上的主谓关系，故用现在分词作后置定语。8to realize考查非谓语动词。start和begin后跟表示心理状态或精神活动的动词时，如understand和realize等，常用不定式。9found考查非谓语动词。the ones与find是被动关系，应用过去分词作后置定语。10so考查特殊句型。“so助动词主语”表示“也如此”。*完形填空My daughter(now 18)was born with a hemangioma tumor(血管瘤)by her eye.At first it
