资源简介

(共24张PPT)
单元语法沙龙
Unit 2
Stay Healthy
写出下列句子中的情态动词和反身代词
1. —The cake is delicious. Could I have another one
—Of course, you can. Help yourself, please.
_____________________________________________________
2. Could you write a letter of introduction for me
_____________________________________________________
Could; can; yourself
Could
3. Drivers should avoid using mobile phones while driving to ensure safety.
_____________________________________________________
4. To keep themselves awake, they sat on the floor and told each other stories.
_____________________________________________________
5. To my amazement, the lost dog found its way home by itself.
_____________________________________________________
should
themselves
itself
考点1 should 的用法
should 作情态动词，后接动词原形，没有人称、时态和数的变化。其否定形式为shouldn’t。变一般疑问句时把should 提前放于句首，回答时仍借助should。具体用法如下：
1. 表示职责或义务，意为“应该；应当”。
· We should respect our elders. 我们应该尊敬长辈。
· Drivers should obey the speed limit. 司机应该遵守限速规定。
一 情态动词should 与could
2. 表示劝告或提出建议，意为“应该”。
· You should give up smoking. 你应该戒烟。
3. 用于征求意见，常用于第一人称的疑问句中，意为“应该；应当”。
· Should I open the window 我应该打开窗户吗？
4. 表示推测，指某事发生的可能性，意为“可能”。
· They should be there by now, I think.
我认为现在他们应该在那儿了。
考点2 could 的用法
1. 情态动词could 也用于提出建议，比can 语气更委婉。“You could...”意为 “你可以……”。
· Perhaps you could send an email to confirm the meeting time.
或许你可以发封邮件确认会议时间。
2. could 表示过去的能力，表示现在的能力用can，此时could 是can 的过去式。
· He could swim at the age of five. 他五岁时就会游泳。
3. could 表示推测时，后接动词原形，表示对现在或将来的推测。could 与“have + 过去分词”连用，表示对过去的推测。
· The road could be icy in such cold weather.
这么冷的天，路面可能结冰了。
· If she leaves now, she could arrive by 8 PM.
如果她现在出发，可能晚上8 点前到。
· The package could have arrived yesterday, but no one was at home.
包裹可能昨天就到了，但家里没人。
拓展：1. could 用于提出要求或请求。“Could you please... ”意为“请你……好吗？”用于提出要求或请求。答语通常为：
肯定回答：Sure! /OK./All right...(当然！ / 好的。/ 可以……)
否定回答：I’m sorry, but ...(抱歉，但是……)
· —Could you please pass me the book on the table
你能把桌子上的书递给我吗？
—Sure! Here you are./I’m sorry, but I’m a bit busy right now.
当然！给你。/ 抱歉，但我现在有点忙。
2. could 用于请求许可。“Could I... ”意为“我可以……吗？”用于请求对方允许自己做某事。答语通常为：肯定回答：Of course you can! /No problem./Help yourself./Go ahead...(当然！/没问题。/ 请自便。/ 去吧……) 否定回答：I’m afraid not. You can...(恐怕不行。你可以……) /Sorry, you can’t.(对不起，不行。) /You can, but not now...(可以，但不是现在……)
· —Could I borrow your pen for a moment 我能借你的笔用一下吗？
—Of course!/No problem./I’m afraid not. I need it myself.
当然！ / 没问题。/ 恐怕不行。我自己也需要用。
反身代词是英语中表达“……自己；本身”含义的一类代词，是由第一人称、第二人称形容词性物主代词或第三人称人称代词宾格形式词尾加-self 或-selves 组成的。
二 反身代词
考点1 反身代词的构成
数 第一人称 第二人称 第三人称
单数 myself 我自己 yourself 你自己 herself 她自己
himself 他自己
itself 它自己
复数 ourselves 我们自己 yourselves 你们自己 themselves
她/ 他/ 它们自己
考点2 反身代词的用法：
1. 反身代词作宾语
反身代词可放在及物动词(短语) (或介词的后面作宾语，强调宾语和主语是相同的人或物。常见的后接反身代词作宾语的动词(短语) 有：teach、hurt、enjoy、dress、help、take care of、look after 等。
· He fell down from the wall and hurt himself.
他从墙上掉下来，伤了自己。
· Students should learn to look after themselves.
学生们应该学会照顾自己。
· The children can finish the puzzle by themselves.
孩子们能自己完成拼图。
2. 反身代词作同位语
反身代词在句中通常作主语或宾语的同位语，译作“本身；亲自”，表示强调。
· I don’t need any help. I can do it myself.
我不需要任何帮助。我自己能做。(主语同位语)
· You can ask Jenny herself. 你可以问问珍妮本人。(宾语同位语)
3. 反身代词作表语
反身代词放在be 动词、feel、look、seem 等系动词后作表语，可以用来描述身体或精神状态。
· She was not herself yesterday. 她昨天感到不舒服。
考点3 反身代词常用于以下短语
enjoy oneself 玩得开心 hurt oneself 伤着自己
teach oneself 自学 dress oneself 自己穿(衣服等)
introduce oneself 介绍自己 help oneself to... 随便吃/ 喝……
say to oneself 自言自语 by oneself 独自
· The little boy is old enough to dress himself.
这个小男孩足够大，能自己穿衣服了。
· He goes to school by himself every day. 他每天独自去上学。
一 单项选择
1. [江苏南京中考] Self-driving cars are smart enough to follow traffic rules and park ______.
A. they B. their
C. them D. themselves
D
2. ______ you turn down the TV, please I’m trying to work.
A. Could B. Must C. Might D. Should
3. Little Mary was proud of ______ because she taught Uncle Li how to borrow books online.
A. herself B. hers C. she D. her
A
A
4. You ______ eat too much food before you go to bed, because it’s bad for you.
A. can B. could C. shouldn’t D. would
5. [江苏无锡中考] Shh...! This is a library. You ______ keep your voice down.
A. can B. can’t C. should D. shouldn’t
C
C
二 用括号内所给词的适当形式填空
6. [北京师大附中开学考] Be more active in class so that you can improve your ability to express _________ (you) .
7. —Mom, could you please help me wash my clothes
—Harry, you are a teen now. You can do it by ________ (you) .
yourself
yourself
8. [江苏扬州中考] Some tourists fall in love with Yangzhou ______ (it) rather than just its tourist attractions.
9. —Where did you get the toy car
—From Betty. She made it ______ (she) .
10. —My best friend is more popular than me. I want to be like him.
—It’s not necessary to be the same. You should just be ________ (you) .
itself
herself
yourself
三 根据汉语意思完成句子
11. 如果累了，你可以先休息半小时再继续工作。
If you’re tired, you _______ _______ a 30-minute break before continuing working.
could take
12. [安徽合肥包河区期中] —请问我能看电视吗？
—是的，你能。
—_______ I watch TV —Yes, you _______.
13. 我想知道我们接下来应该去哪里。
I wonder where we _______ go _______.
Could can
should next
14. [湖北黄石联考] 我们应该帮助拯救鲨鱼。
We _______ _______ save the sharks.
15. [湖南长沙长郡集团月考] 你不应该等到最后一分钟才准备考试。
You _______ wait _______ the last minute to study for a test.
should help
shouldn’t until

展开更多......

收起↑