内容正文:
冀教英语八上Unit 6重点知识讲解
Unit 6 Natural wonders of the world
一、单词用法讲解
1. natural /ˈnætʃrəl/ adj. 自然的;天然的
教材原句:It's a famous natural landscape in Sichuan Province, China.
→ 替换例句:Our country has rich natural resources.
用法解析
· 形容词,意为“自然的;天然的”,名词形式为 nature(大自然;自然界),副词形式为 naturally(天然地;自然地)。
例句
· It's naturally easy for him to learn new languages.
· We should protect nature and wild animals.
2. imagine /ɪˈmædʒɪn/ v. 想象;设想
教材原句:Imagine being there!
→ 替换例句:Imagine that you have just won a million pounds.
用法解析
· 及物动词,常见搭配:
① imagine sth:想象某物/事
② imagine (sb) doing sth:想象(某人)做某事
③ imagine + that 从句:想象……
· 名词形式为 imagination(想象力)。
例句
· Can you imagine living in space some day?
· I can't imagine life without the Internet.
3. enter /ˈentə(r)/ v. 进入;进来;参加
教材原句:It entered the World Natural Heritage List in 2017.
→ 替换例句:The train entered the tunnel.
用法解析
· 及物动词,常见用法:
① 表示进入某一具体的地方
② 表示进入某一组织或某一机构
③ 表示报名参加考试、比赛等
④ 表示开始从事某种职业
例句
· He entered the army last year.
· All his friends entered the examination.
4. check /tʃek/ v. & n. 检查;审查
教材原句:Let me check.
→ 替换例句:Do look out for spelling mistakes when you check your homework.
用法解析
· 作动词,意为“检查;审查”;作名词,意为“检查;审查;支票”。
· 常见短语 check out(查看;观察)、check oneself(克制自己)。
例句
· Would you check out these names and numbers, please?
· I have to check myself not to laugh out loud.
5. search /sɜːtʃ/ v. & n. 搜寻;搜索
教材原句:Search for hidden treasures in the jungle.
→ 替换例句:People often search online to find the right restaurant.
用法解析
· 作动词,常用短语 search for(寻找;搜寻),后直接跟寻找的人或物作宾语;search 后可直接跟地点或人,表示在某地搜索或搜某人的身。
· 作名词,意为“搜寻;搜索”。
易混辨析
易混词组
用法及例句
search
后可直接跟地点或人,表示在某地搜索或搜某人的身。 例:The police searched the house for the thief.
search for
后直接跟要寻找的人或事物。 例:They are searching for the lost child.
例句
· You can search the Web for jobs.
· The search for the missing hiker lasted three days.
6. guide /ɡaɪd/ n. 导游;指南 v. 带领;引导
教材原句:Expert local guides for 5 days.
→ 替换例句:A guide showed us the groups of stars and told us stories about how they got their names.
用法解析
· 作名词,意为“导游;向导;指南”;作动词,意为“带领;指导;引领”,常用搭配:
· guide sb to...:带领某人去……
· guide sb to do sth:带领某人去做某事
例句
· My job was to guide the audience to their seats and answer their questions.
· This book is a guide to English grammar.
二、重点短语讲解
1. natural landscape 自然景观
教材原句:It's a famous natural landscape in Sichuan Province, China.
→ 替换例句:Zhangjiajie is a beautiful natural landscape in Hunan.
用法解析
· 名词短语,natural 修饰 landscape,表示“自然形成的景色”。
例句
· The Grand Canyon is one of the most amazing natural landscapes in the world.
2. provide... for... 为……提供……
教材原句:Of course, you can also create your own trip plan, and we can provide services just for you.
→ 替换例句:Wetlands are important because they provide habitats for plants and animals.
用法解析
· 动词短语,同义结构为 provide sb with sth(为某人提供某物)。
例句
· The government provides them with food.
· The school provides textbooks for all students.
3. take a boat trip 乘船旅行
例句:We plan to take a boat trip along the Li River.
用法解析
· 固定短语,take a trip 表示“旅行”,boat 修饰 trip 表示旅行方式。
例句
· Taking a boat trip on the lake is a great way to relax.
4. miss out 错过;遗漏
例句:Don't miss out on the chance to see the show.
用法解析
· 短语 miss out on sth 表示“错过某事”。
例句
· You missed out on a great opportunity by not coming to the party.
三、重点句式讲解
1. “祈使句 + and + 简单句” 结构
教材原句:Follow our camera and you can see the breathtaking plateau landscapes, beautiful snow-capped mountains, deep blue lakes, and green wetlands.
→ 替换例句:Use your head and you'll find the way.
句式结构
· 祈使句表示一种条件,简单句表示一种顺承的结果,简单句的时态通常为一般将来时。
· 拓展:“祈使句 + or + 简单句”表示相反的结果,or 意为“否则;要不然”。
例句
· Take a trip to Fantasyland's Tangled Tree Tavern, and you can practice sorting food waste there.
· Hurry up, or you'll be late for work.
2. “Would sb like to do sth?” 句型
教材原句:Would you like to know about other great rivers around the world?
→ 替换例句:Would you like to go shopping with me?
句式结构
· 意为“某人想做某事吗?”,用于礼貌地提出邀请或询问意愿。
· 肯定回答:Yes, I'd like to.
· 否定回答:Sorry, ... / I'd like to, but...
例句
· —Would you like to join us for dinner?
—I'd like to, but I have to finish my homework first.
四、语法讲解:形容词和副词的比较级和最高级
教材原句
① The Changjiang River is longer than it.
② Is it the longest river in China?
1. 概念
对两个人或物进行比较时,要用形容词或副词的比较级;当三者或三者以上的人或物进行比较,表示其中一个在某方面超过其他几个时,要用形容词或副词的最高级。
2. 构成
① 规则变化
构成方法
例词
一般情况直接加 -er 或 -est
tall → taller → tallest
以 e 结尾的词,直接加 -r 或 -st
nice → nicer → nicest
以辅音字母加 y 结尾的词,把 y 变 i,再加 -er 或 -est
heavy → heavier → heaviest
以重读闭音节结尾,且末尾只有一个辅音字母的词,双写末尾辅音字母,再加 -er 或 -est
big → bigger → biggest
多音节和部分双音节词,在词前加 more 或 most
popular → more popular → most popular
② 不规则变化
原形
比较级
最高级
good/well
better
best
bad/badly/ill
worse
worst
many/much
more
most
little
less
least
far
farther/further
farthest/furthest
old
older/elder
oldest/eldest
3. 用法
① 原级
· “A + 谓语动词 + as + 原级 + as + B”:A 和 B 一样……
· “A + 谓语动词 + not as/so + 原级 + as + B”:A 不如 B……
例句
· The sun can be as hot as 40℃ about midday!
· The weather in Beijing is not as/so hot as that in Wuhan.
② 比较级
· “A + 谓语动词 + 比较级 + than + B”:A 比 B……
· “A + 谓语动词 + less + 原级 + than + B”:A 不如 B……
· “the + 比较级, the + 比较级”:越……就越……
· “比较级 + and + 比较级”:越来越……
例句
· I told everyone they were much cheaper than new toys.
· Generally speaking, the more you pay, the more you get.
· Our life gets better and better.
③ 最高级
· “A + 谓语动词 + the + 最高级 + in/of 短语”:A 在某一范围内或某类人/物中最……
· “A + 谓语动词 + one of the + 形容词最高级 + 复数名词 + in/of 短语”:A 是……中最……的之一
· “A + 谓语动词 + the + 序数词 + 形容词最高级 + 单数名词 + in/of 短语”:A 是……中第……最……的
例句
· This park is the most beautiful of the four.
· This story has become one of the most popular examples of "eureka" moments.
· The Yellow River is the second longest river in China.
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