2017届高三英语一轮检测30 　Units 1－2（人教版选修8）

　　课后限时自测(三十)Ⅰ.语法times.Perhaps it makes __1__ feel more content with our life because we feel there is someone else __2__(bad) off than ourselves.__3__，some actors can astonish us with the deep feelings.Charlie Chaplin，the most famous actor __4__ the period of silent films，was such an actor.He was able to __5__(make) terrible situations funny and at the same time show the humanity and kindness that can be found in the most difficult circumstances.Take The film __6__(set) in California in the middle of the nineteenth century.Chaplin and his friend wash sand from the river in a pan of water.__7__ they expect eagerly to find gold，they have not been __8__(fortune) enough to find any.Instead，they are caught in a snowstorm in a small wooden house，__9__(have) nothing to eat.They are so hungry __10__ they have to boil a pair of leather shoes and eat it.Chaplin seems to eat every mouthful with great enjoyment and makes it seem to be one of the best meals he has ever had!

　　1．us　根据后面的our life和we可知，此处应用us，作makes的宾语。　根据后面的than可知应用比较级形式。　下文与前面是转折关系，故用however“然而”。注意首字母应大写。另外，此处不能用but，因为后面有逗号。ing　表示“在……期间”用介词during。　be able to后接动词原形，be able to do sth.“能够做某事”。　be set in意为“以……为背景”，本文通篇用现在时is set。　句意：尽管他们迫切希望找到金子，但是……，前后句之间为让步关系，故用although/though“尽管，虽然”引导状语从句。　此处所填词在句中作表语，故用形容词形式。　have与句子主语they为主动关系，且have表示的动作与谓语动词表示的动作同时发生，故用现在分词作状语。　此处考查“so＋形容词＋that...”结构。阅读理解ersity(MSU) researchers has developed a new，more efficient way of cloning zebra fish，a breakthrough that could have an impact on research into human health.，they are the most commonly used vertebrates，that is，animals with backbones，in genetic studies，”says Jose Cibelli，the leader of the team.“They are used in cancer and heart－disease research because they have many of the same genes as people have.”，zebra fish have also served as an excellent model for understanding both normal development and birth imperfections.More recently，research with zebra fish has extended to modeling human diseases.(捐赠者) cell.The DNA is removed from the egg and replaced by the DNA taken from the donor.The resulting fish is an exact genetic copy of the donor.In Cibelli's technique，the egg is removed from the female zebra fish and placed in the ovarian(卵巢的) fluid of a Chinook salmon，another kind of fish，before the donor cell is placed into the egg.The previous methods of cloning zebra fish had very low survival rates.With the new technique，the number of cloned fish is increased by 15 percent. is that their eggs are transparent(透明的)，making the fish's development easy to follow.－fish cloning techniques is also important because currently the mouse is the only good model for genetic research.rom which you can delete genes in a reliable way，”Cibelli says.“What researchers do is mutate(使变异) a gene，destroy its function completely，and then study the consequences.”be used to cure human diseases.

　　B．They have been used in genetic studies for 20 years.

　　C．They are the only vertebrates used in cloning.

　　D．Their survival rates are increased by the new method of cloning.

　　【解析】　根据第五段最后的“...the number of cloned fish is increased by 15 percent.”可以知道，这种新的克隆技术可以大大提高克隆斑马鱼的成活率。【答案】　D________．a kind of vertebrate

　　C．their genes can be changed

　　D．their eggs are easy to observe

　　【解析】　根据第六段的“What makes zebra fish so useful in research is that their eggs are transparent，making the fish's development easy to follow.”可知人们之所以选择斑马鱼进行基因研究是因为它们的卵是透明的，利于观察。【答案】　D，how many zebra fish can be cloned by the new one?B．23.C．17.D．15.【解析】　根据第五段的最后一句话“With the new technique，the number of cloned fish is increased by 15 percent.”可知答案为B项。【答案】　BB．A study of a new way to clone zebra fish.

　　C．A breakthrough in research into human health.

　　D．Zebra fish，the best model for genetic research.【解析】　通读全文可以知道，作者是在介绍一种比较新的克隆斑马鱼的研究，因此B项符合题意。【答案】　B阅读填句(2017·吉林省)The sea has always interested man. From it they can get food, minerals, and treasure.__1__But he could not go far beneath its surface.__2__ However, he is not a fish. He must breathe air, so he can't stay under the water's surface for any length of time. To explore deep water, man faces even more dangers and problems. A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases.__3__He can carry a tank of air on his back and breathe through a nose and mouth piece. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea.__4__ When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to surface, the water pressure less. If the diver rises too quickly, the gases in his blood form bubbles (气泡). The diver is then suffering

　　from the bends (潜水病)．The bends can cause a diver to double up in pain.__5__

　　A．His body is under great pressure.

　　B．Scientists are trying to find more about the sea.

　　C．For thousands of years, he could sail on it.

　　D．They can even kill him.

　　E．He can wear a diving suit and have air pumped to him from above.

　　F．The water pressure can cause a diver to breathe with difficulty.

　　G．Man wants to explore deep into the sea.

　　【答案】　1－5　C G E A D短文改错(2017·武安市二中模拟)， We don't tell you right away. At first the doctor said she might have some trouble of the baby. Now he says she is just fine. She still works on his paintings every day. But she stopped from teaching her art classes.

　　There is going to have another big change in our life.

　　We're moving back to New York! It's very much nicer to be near the families for something important like a baby. Maria grew up in Mexico，but she doesn't have a family here. So that makes even more important to us.

　　Yours，【答案】　第一句：excited 改为excitingdon't 改为didn't　第四句：of改为 with　第六句：his改为 her　第七句：去掉from　第八句：have改为be　第十句：去掉very；families改为family　第十一句：but改为and　第十二句：makes后加you