（精讲册）八年级下册-课时10 Units 3～4-【卓文中考·加速度】2023陕西中考英语复习课件（冀教版）

1 卓文中考.加速度 英语 2023陕西中考 2 课时10 Units 3~4 1 2 考点梳理·重点剖析 语篇试题·素养提升 考点1 avoid的用法 考点2 protect的用法 考点3 warn的用法 考点4 辨析lay与lie 考点5 辨析a number of与the number of 考点6 辨析sell, buy与sale 3 1 avoid的用法 ◆课前检测：请先完成《词汇分阶练》P42～P44的[基础词汇·巩固拓展]。 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 4 1.We can’t avoid _______ （see） many products made in China in many other countries. seeing 2.为了避免交通拥挤，大城市的人们不得不早起。 To _______ the heavy traffic, people in big cities have to get up early in the morning. avoid 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 5 2 protect的用法 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 6 3.It is high time that we took measures to protect the animals from _______（be） harmed by humans. being 4.为了保护环境，许多人选择乘地铁上班。 In order to ________________________, many people choose to go to work by subway. protect the environment 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 7 3 warn的用法 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 8 use swim 5.Parents always warn their children not _______ the scissors because they are dangerous. to use 6.Our teachers often warn us against ___________ in the river. swimming 7.我对他呼喊，警告他有危险。 I shouted to him and _____________________ the danger. warned him of/about 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 9 4 辨析lay与lie 单词 词性 含义 过去式 过去分词 现在分词 lay v. 放置；下蛋 laid laid laying lie v. 躺；位于 lay lain lying v. 说谎 lied lied lying n. 谎言 / 一言辨异 The man lying there lied to his wife that he laid the money on the table. 躺在那里的男人对妻子撒谎说他把钱放在桌子上了。 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 10 lie lay 8.He often _____, so nobody believed him. But I was so stupid that I believed him again and again. lied 9.The cuckoo（杜鹃） often _____ its eggs in other birds’ nests. lays 10.Patrick从不说谎或欺骗别人。多么诚实的男孩啊! Patrick never _________ or cheats people. What an honest boy! tells lies 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 11 5 辨析a number of与the number of 词组 含义及用法 a number of “许多；大量”，后接可数名词复数，谓语动词用复数形式，number前可用large，small，great等词修饰，构成a large/small/great number of，表示数量多或少 the number of “……的数量”，后接可数名词复数，谓语动词用单数形式 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 12 11.A large number of people in our country _____（be） getting vaccinated（接种疫苗） these days. It’s good for our health. are 12.今年，该地区的交通事故数量增长了20%。 ________________ traffic accidents in this area has increased by 20 percent this year. The number of 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 13 6 辨析sell, buy与sale 单词 词性及含义 常用搭配 sell v. 卖；出售 sell out 卖完；售光 sell off 甩卖 sell sth. to sb. = sell sb. sth. 把某物卖给某人 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 14 单词 词性及含义 常用搭配 buy v. 购买；买 buy sth. from… 从……买某物 buy sth. for sb. = buy sb. sth. 为某人买某物 sale n. 特价销售；卖 for sale 待售 on sale 出售，上市；降价出售 续表 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 15 buy sell sale 13.Grace will _____ her toys to help the poor children in the mountainous areas. sell 14.John didn’t _____ the book because the seller wanted more money than he had expected. buy 15.There are hundreds of people shopping in the new supermarket because it is having a _____. sale 16.永辉超市在大甩卖！咱们一起去购物吧！ Yonghui Supermarket is ________! Let’s go shopping together! on sale 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 16 语法链接 1.不定代词some和any （见本书P66） 2.if引导的条件状语从句 （见本书P81） 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 17 Ⅰ.阅读理解（第一节） Here is an experiment （实验） to see how ants can organize some clever teamwork. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 18 . . . . 1. First you need some ants. You may have to wait until the summer to find them on paths around your home. 2. When you have found an ant, put a thin slice of fruit in front of it. It may eat some of it or carry bits away. 续表 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 19 . . . . 3. Check the fruit after an hour. Have other ants been attracted to it? If so, what are they doing? 4. When there are lots of ants, move the fruit to a new position, a little to the side. What do the ants do? 续表 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 20 What’s going on? You can see one of the best examples of insect teamwork by watching ants. If one ant finds food, it leads others there to eat it too. They follow each other by making long trails. The ants go back and forth collecting food, to take it back to their nest （穴）. When you move the fruit, the ants will still find it. But, instead of making a new direct route （路线） to the food, they will follow each other through their old trail route. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 21 1.What will happen if one ant finds food? ___ A.The ant will eat all the food. B.The ant will watch other ants. C.The ant will lead others to the food. D.The ant will wait until others come. C 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 22 2.If the fruit is moved to a new position, what will happen? ___ A.The ants will fail to find it. B.The ants will give up looking for it. C.The ants will make a new direct route to it. D.The ants will get to it through the old trail route. D 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 23 3.What can we learn from this experiment? ___ A.The experiment is done successfully in the lab. B.Ants do the experiment to show their team spirit. C.Careful watching does little help in this experiment. D.We can find out some facts by doing small experiments. D 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 24 4.创新考法·句子排序 Which is the correct order to do this experiment? ___ a.Move the fruit to a new position. b.Find an ant. c.Check the fruit an hour later. d.Put a thin slice of fruit in front of the ant. A.a-b-c-d B.b-d-c-a C.d-b-c-a D.c-a-d-b B 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 25 Ⅱ.任务型阅读 科普知识：黑脉金斑蝶 Monarch butterflies from the Northern and Central United States and Southern Canada make the most amazing journey in the insect （昆虫） world. Each year, they travel about 3,000 miles to their winter home in Florida and Mexico. How can they fly so far? And why do they make this long and dangerous trip? For many years, people in Mexico wondered where the orange and black butterflies came from every winter. Then, in 1937, a scientist started to follow and study the butterflies. For the next 40 years, he discovered that one butterfly started its journey in Canada. Four months later, it arrived in Mexico. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 26 The length of the butterflies’ trip is only part of the mystery （奥秘）. Another amazing thing is that the butterflies always return to the same area in Florida and Mexico. How do the butterflies find their way back to the same place? This is an interesting question because only every fourth generation （代） makes the trip south. In other words, the butterfly that travels to Mexico this year is the great-great-grandchild of the butterfly that traveled there last year. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 Each year, four generations of a Monarch butterfly family are born. Each generation of the family has a very different life. The first generation is born in the south in late April. It slowly moves north, reproduces （繁衍）, and then dies. On the trip to the north, two more generations are born, reproduce, and die. Each of these generations of butterflies lives for only two to five weeks. In the autumn, the fourth generation of butterflies is born. This generation has a much longer life. It lives for about eight months and makes the amazing journey back to the winter home of its great-great-grandparents. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 The butterflies spend the winter there, and in the spring they reproduce and then die. Their offspring （后代） will be the first generation of the next circle of life. Today, people are still studying Monarch butterflies. But they are not clear about everything. 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 1.How did the writer start the passage? The writer did it by _______________________. asking/raising questions 2.How long did it take the scientist to find out that Monarch butterflies came from Canada? It took him __________ to discover that. 40 years 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 30 3.What are the two mysteries of Monarch butterflies mentioned in the passage? They are the _______ of the butterflies’ trip and their ability to __________ their original （原来的） homes. length return to 4.What does the underlined word “It” refer to in the fifth paragraph? It refers to the __________________ of butterflies. fourth generation 5.What’s the writer’s purpose of writing this passage? He wants to introduce some ____________ about Monarch ___________. information butterflies 请完成《精练册》（P19~P20）中的练习题 课时10 Units 3~4 卓文中考.加速度 英语 2023陕西中考 31 32 $$