2019届高三英语一轮复习 题组层级快练40 Unit 5 Meeting your ancestors 新人教版选修8.doc

1、【 精品 教育资源文库 】 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 overflow Just add around 10 drops of the dye to the vinegar to ma

2、ke your finished bouncy egg any color you want to. Get a raw, unboiled egg. Place it in the vinegar filled 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

3、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 thick

4、ness. 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 d

5、ioxide. 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.

6、 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 cov

7、er the container? A. To keep air out of the container. 【 精品 教育资源文库 】 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 enough B. transparent enough C. strong enough D. big enough 4. What makes the eggsh

8、ell 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 egg B. why eggshell dissolves at last C. how to make an unboiled bouncy egg D. how to protect a bouncy egg 答案与解析 【文章大意】 这是一

9、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 “C over 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 “Loo

10、k 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。 【 精品 教育资源文库 】 Many y

11、ears 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

12、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 equipme

13、nt, 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 tr

14、uck 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 tea

15、r 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

16、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. Be

17、cause 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. 【 精品 教育资源文库 】 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 ol

18、d. B. About 28 years old. C. About 55 years old. D. About 60 years old. 8. Why did the story tellers 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 prop

19、erly. 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

20、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

21、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. 【 精品 教育资源文库 】 _1_ Lavender essential oil is known as an excellent t

22、reatment 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.

23、 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 i