2019届高三英语一轮复习题组层级快练40Unit5Meetingyourancestors新人教版选修820180508135.doc

题组层级快练40 Unit 5 Meeting your ancestors. 阅读理解Find a large enough container to fit the egg. Fill the container with vinegar(醋). Dont fill it all the way to the brim though, because then putting the egg in will make it overflowJust add around 10 drops of the dye to the vinegar to make your finished bouncy egg any color you want to.Get a raw, unboiled egg. Place it in the vinegarfilled container. Just drop it in from right above the vinegar and make sure it is completely submerged (淹没)Cover the container. The less sunlight it gets, the better. Wait for the shell of the egg to completely dissolve. This process can take anywhere from 24 to 72 hours. To be on the safe side, wait three days before continuing.Look at the egg through the container every once and a while to check its progress. The egg will turn a transparent color because the eggshell is increasing in thickness. The eggshell will soon dissolve, leaving just a thick strong egg white.The reason why shell dissolves(溶解) is that vinegar is a weak acid. The eggshell is made of calcium carbonate(碳酸钙). When the shell meets vinegar, it makes a chemical reaction that turns the calcium carbonate into carbon dioxide.Take the egg out of the vinegar carefully. Just reach in and pull it out with your hand. Dont forget to wash your hand afterwards. Place the egg on a couple of paper towels to let it dry.Be extra careful when handling a raw bouncy egg. It will be more easily broken than a boiled bouncy egg.Bounce it. Start with just a few inches, and have cleaning supplies ready!1. What does the underlined word “overflow” probably mean in Paragraph 1?A. Flow out of the container.B. To be full of a container.C. Fall onto the table or desk.D. Break into small pieces.2. What is the purpose to cover the container?A. To keep air out of the container.B. To keep it from being seen.C. To keep the container cool.D. To keep away from the sunlight.3. It infers that the container must be _A. hard enoughB. transparent enoughC. strong enough D. big enough4. What makes the eggshell dissolve?A. Water in the container.B. Air in the container.C. The chemical reaction.D. The carbon dioxide.5. The passage mainly tells us _A. how to play with a bouncy eggB. why eggshell dissolves at lastC. how to make an unboiled bouncy eggD. how to protect a bouncy egg答案与解析【文章大意】这是一篇说明文。为我们讲述了制作弹力鸡蛋的实验过程。醋中含有弱酸，鸡蛋壳的主要成分为碳酸钙，两者发生化学反应生成醋酸钙和二氧化碳，醋酸钙为可溶盐，使蛋白质发生盐析现象，使蛋白质凝固。1. 答案A解析词义猜测题。第一段最后一句：不要用醋酸装满容器，以防把鸡蛋放入使得醋酸溢出。选A项。2. 答案D解析推理判断题。第四段“Cover the container. The less sunlight it gets, the better.”覆盖容器，接受的阳光越少越好。由此可知，覆盖为了遮挡阳光。3. 答案B解析推理判断题。第五段“Look at the egg through the container”可知，容器必须是透明的。transplant一词，同学们不熟，用排除法。4. 答案C解析细节理解题。第六段“When the shell meets vinegar, it makes a chemical reaction”醋酸遇到碳酸钙，形成可溶性醋酸盐。因此是化学反应使之然也。5. 答案C解析主旨大意题。通读全文及第二段“make your finished bouncy egg”可知，写作目的是讲如何制作没有煮熟的弹力鸡蛋。Many years after his grandpas truck was sold, Robbie found it in a garage in Yonkers. He bought the truck and is now having fun fixing it up.Grandpa was a roofer (盖顶工) and a coppersmith. The local people said Grandpa was known as the best roofer for miles around.My grandpa paid $450 for his truck, a46 Chevy. I was about 5 years old when I took my first ride in it.I studied to be a teacher. I also became a firefighter and traveled the same streets that Grandpa and I had covered years before.Grandpas business closed in the late 1960s, and he passed away in 1974. My dad sold off all of the equipment, including the truck, a few years later. As time went by, I often thought of Grandpas little red truck and wondered whatever happened to it.One day in 2006, when I was at the dentists office, Sandy, the receptionist (接待员；传达员), and I were talking about trucks. She told me she had a little red truck with some writing painted on its side doors. I told her my grandpa used to own a similar truck, so she invited me to come and see it.The first chance I had, I drove to her garage. Slowly I opened the large door and in front of me was a very special memory come to life.My eyes widened and a tear ran down my cheek.I walked over and opened the passenger door. I had ridden on that side so many years before.For the first time in my life, I slid across and sat in the drivers seat.My dream had come true. Before I left that day, I said softly, “Grandpa, I found your truck.”I bought the truck and moved it to the very first garage Grandpa put it in when he brought it home. I am hoping that with lots of elbow grease, as Grandpa would say, the little red truck will soon journey down the familiar streets of my childhood once again.6. Why was Grandpa popular to the local people mostly?A. Because he was a very famous coppersmith.B. Because he was rich enough to have a truck.C. Because he used to help them build houses.D. Because he raised a big family in a small house.7. According to the passage, how old was the red truck when “I” found it again?A. About 14 years old.B. About 28 years old.C. About 55 years old.D. About 60 years old.8. Why did the storytellers father sell the truck?A. Because the truck took up too much space.B. To avoid missing grandpa when seeing it.C. Because the family needed money badly.D. Because the truck was too old to work properly.9. According to the passage, what contributed to finding the little red truck again?A. His tooth problem. B. His headache.C. His stomachache. D. His leg problem.答案与解析【文章大意】这是一篇记叙文。记述了“我”通过一辆小型红色卡车的失而复得，表达了“我”对爷爷的深深的思念。6. 答案C解析细节理解题。由第二段最后一句可知：爷爷是十里八乡最好的盖顶工，爷爷帮人盖房子。7. 答案D解析细节理解题。第三段He paid $450 for his truck, a46 Chevy.说明这辆卡车出厂时间为1946年，从第六段One day in 2006, when I was at the dentists office .重新找到这辆车的时间为2006年，这辆车应该60岁了。8. 答案C解析推理判断题。从第五段第一句，可推知爷爷的商业关闭，家庭处于经济困境。9. 答案A解析推理判断题。第六段“when I was at the dentists office”，dentist“牙医”，因此牙有问题。. 七选五根据短文内容，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。Lavender essential oil (薰衣草精油) is obtained mostly from the flowers of the lavender plant. It has not only been used in making perfumes for many years but also has various health benefits._1_ Lavender essential oil is known as an excellent treatment for various types of pains including those caused by sore and tense muscles, muscular aches, backache, and so on. A study on postoperative pain relief showed that combining lavender essential oil vapor with the oxygen significantly reduced the amount of pain experienced.Induce (引起) sleep. Frequent studies on elderly patients have shown an increase in their sleep regularity when their normal sleep medication is replaced with some lavender essential oil being placed on their pillows. _2_ Therefore, it often replaces modern medicines for sleep issues.Reduce mental stress and anxiety. Lavender essential oil has a calming scent which makes it an excellent treatment for the nerve and anxiety issues. The refreshing aroma removes nervous exhaustion and restlessness while also increasing mental activity. _3_Provide hair care. _4_ A Scottish study reported that more than 40% of alopecia (脱发) patients in the study reported an increase in hair growth when they regularly applied lavender essential oil to the skin under their hair. Therefore, lavender oil is sometimes recommended as a preventative measure for male pattern hairlessness._5_ There is a significant research on the effects of lavender, in combination with other essential oils, as a way to prevent the occurrence of breast cancer in mice. However, this could be an indication of an increased chance of lavender battling the presence of other cancers.A. Prevent cancer.B. Relieve muscle pain.C. It has a relaxing impact on people.D. Promote muscle strength and health.E. It has a wellresearched impact on the automatic nervous system.F. Lavender essential oil is very helpful in the treatment of hair loss.G. Therefore, it can be helpful in treating depression, nervous tension and emotional stress.答案与解析【文章大意】本文是一篇说明文，主要介绍了薰衣草精油的健康效益。1. 答案B解析根据下文中的“an excellent treatment for various types of pains including those caused by sore and tense muscles, muscular aches, backache, and so on”以及“pain relief”可知，本段主要介绍的是薰衣草精油在肌肉疼痛方面的作用。故B项“缓解肌肉疼痛”符合语境。2. 答案C解析根据本段的主题句“Induce(引起)sleep”，及空后的“Therefore, it often replaces modern medicines for sleep issues”可知，此处应是解释薰衣草精油为什么能够诱发睡眠及被用来替代药品解决睡眠问题的，故C项符合语境。3. 答案G解析根据本段的主题句可知，本段主要讲的是薰衣草精油在缓解精神压力和忧虑方面的作用。而G项中的“depression, nervous tension and emotional stress”能够呼应这一主题，故G项符合语境，且与上文构成因果关系。4. 答案F解析根据本段的主题句“Provide hair care”及下文中的“more than 40% of alopecia (脱发) patients in the study reported an increase in hair growth when they regularly applied lavender essential oil to the skin under their hair”“a preventative measure for male pattern hairlessness”可知，此处强调的是薰衣草精油在治疗脱发上是很有帮助的，故F项符合语境。5. 答案A解析根据下文中的“a way to prevent the occurrence of breast cancer in mice. However, this could be an indication of an increased chance of lavender battling the presence of other cancers”可知，本段主要讲的是薰衣草精油在预防癌症方面的作用，故A项符合语境。. 语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。Many of us wake up feeling _1_(tire)in the morning. Many of us ignore the problem as the day goes on, _2_(forget) that it might have a _3_(danger)effect. Society even glorifies “burning the candle at both ends” as _4_ sign of our devotion to work and family.Believe it _5_ not, all this bad sleep has farreaching consequences. We just do not give ourselves enough chances to sleep. A survey of over 74，000 people found 35 percent reported sleeping less than seven hours daily _6_ average. Furthermore, the amount of sleep _7_(change)greatly over the past 15 years.This lack of sleep can lead to many serious _8_(problem). One study found that _9_(simple) limiting yourself to six hours of sleep a night for two weeks had similar effects to staying up all night the night before, _10_ could make you perform poorly on a timed attention task.答案与解析【文章大意】本文介绍了很多人睡眠不足的现象和由此导致的一些问题。1. 答案tired解析考查形容词。本句主语是人，故用形容词tired作feeling的表语。2. 答案forgetting解析考查非谓语动词。空处与其逻辑主语Many of us构成主谓关系，因此用现在分词作状语。3. 答案dangerous解析考查形容词。空后为名词，故用形容词修饰。4. 答案a解析考查冠词。此处表示作为我们对工作和家庭的奉献的一种标志，表泛指，故用a。5. 答案or解析考查固定短语。believe it or not为固定短语，意为“信不信由你”。6. 答案on解析考查介词。on average为固定搭配，意为“平均来看；按平均值”。7. 答案has changed解析考查动词时态和主谓一致。根据该句中的时间状语“over the past 15 years”可知，此处应用现在完成时，且该句的主语是“the amount of sleep”，故谓语动词用单数形式。8. 答案problems解析考查名词。空前有many修饰，且problem为可数名词，故用其复数形式。9. 答案simply解析考查副词。此处修饰非谓语动词limiting，故应用副词。10. 答案which解析考查定语从句。根据语境并分析句子结构可知，该句为非限制性定语从句，又因关系词在从句中作主语，指代空前的“_9_(simple) limiting . the night before”，故用which。. 短文改错Chinese is one of the worlds most widely spoken languages. There are much different types of Chinese. For example, one type known as Mandarin, had