内容正文:
Unit 4 A World of Words Exploring the topic 课时4&5
第四课时 Theme Reading
1. walk sb. through 逐步讲解;带某人参观
【教材原句】Let me walk you through the steps of the experiment.
【讲解】
walk sb. through sth. 意为“逐步向某人讲解某事;带某人熟悉/参观某事”,是口语中常用的表达。
拓展短语:walk through(步行穿过;敷衍地做);walk around(四处走动);walk away(走开);walk into(走进;不慎陷入)。
walk 作名词,意为“步行;散步”,常见搭配:go for a walk(去散步);have a walk(散步)。
【例句】
• The teacher walked us through the new grammar rules. 老师逐步给我们讲解了新的语法规则。
• Let me walk you through the process. 让我逐步给你讲解这个过程。
• She walked me through the museum. 她带我参观了博物馆。
【练习题】
1. 选择:The guide ______ the museum. A. walked us through B. walked us C. walked through us D. walked us around
答案:A
2. 翻译:让我逐步给你讲解如何使用这台机器。
答案:Let me walk you through how to use this machine.
2. widely adv. 广泛地;普遍地
【教材原句】English is widely used around the world.
【讲解】
widely 是副词,意为“广泛地;普遍地;大大地”,由形容词 wide + -ly 构成,修饰动词。
wide 作形容词,意为“宽的;广泛的”,常见搭配:a wide range of(广泛的);wide awake(完全清醒)。
width 是名词,意为“宽度;广度”。
辨析:widely(广泛地,强调范围广);wide(作副词时意为“充分地;张得很大地”,如 open wide 张大)。
【例句】
• Computers are widely used in modern society. 电脑在现代社会被广泛使用。
• The river is 100 meters in width. 这条河宽100米。
• She has traveled widely. 她游历很广。
【练习题】
1. 用所给词适当形式填空:The new method is ______ (wide) accepted.
答案:widely
2. 翻译:汉语在世界上被越来越广泛地使用。
答案:Chinese is more and more widely used in the world.
3. last but not least 最后但同样重要的是
【教材原句】Last but not least, we must protect the environment.
【讲解】
last but not least 意为“最后但同样重要的是”,是列举时的常用表达,用来引出最后一项但强调其重要性不亚于前面的内容。
类似列举表达:first of all(首先);secondly(其次);what's more(而且);in addition(此外);finally / last but not least(最后)。
least 是 little 的最高级,意为“最少的;最小的”。
【例句】
• Last but not least, I want to thank my family. 最后但同样重要的是,我要感谢我的家人。
• First of all, we need enough money. Last but not least, we need time. 首先,我们需要足够的钱。最后但同样重要的是,我们需要时间。
• Last but not least, don't forget to lock the door. 最后但同样重要的是,别忘了锁门。
【练习题】
1. 选择:______, I would like to thank everyone for coming. A. Last but not least B. Last but least C. Last not least D. The last but not least
答案:A
2. 翻译:最后但同样重要的是,我们应该保持健康。
答案:Last but not least, we should keep healthy.
4. believe it or not 信不信由你
【教材原句】Believe it or not, he is already 50 years old.
【讲解】
believe it or not 意为“信不信由你”,是插入语,用来引出令人惊讶或难以置信的事实。
believe 作动词,意为“相信;认为”,常见搭配:believe in sb.(信任某人);believe it or not(信不信由你)。
派生词:belief(名词,信念;信仰);believable(形容词,可信的);unbelievable(形容词,难以置信的)。
辨析:believe sb.(相信某人说的话);believe in sb.(信任某人;信仰)。
【例句】
• Believe it or not, we won the game. 信不信由你,我们赢了比赛。
• Believe it or not, he has never been to Beijing. 信不信由你,他从未去过北京。
• I believe in you. 我信任你。
【练习题】
1. 选择:______, he can speak five languages. A. Believe it or not B. Believe or not C. Believe it not D. It is believed or not
答案:A
2. 翻译:信不信由你,他已经完成了所有的工作。
答案:Believe it or not, he has finished all the work.
第五课时 Grammar in Use
1. 后缀 -able:动词变形容词(可……的)
【教材原句】This is a comfortable chair.
【讲解】
后缀 -able 加在动词后,构成形容词,表示“可……的;能……的;值得……的”。
常见词:comfort → comfortable(舒适的);value → valuable(有价值的);change → changeable(多变的);accept → acceptable(可接受的);believe → believable(可信的);read → readable(可读的)。
否定前缀 un- 加在 -able 形容词前:uncomfortable(不舒适的);unbelievable(难以置信的);unacceptable(不可接受的)。
注意:以 e 结尾的动词,去 e 加 -able,如 value → valuable。
【例句】
• This sofa is very comfortable. 这张沙发很舒适。
• The book is valuable to me. 这本书对我很有价值。
• The weather here is changeable. 这里的天气多变。
【练习题】
1. 用所给词适当形式填空:The bed is very ______ (comfort).
答案:comfortable
2. 写出形容词:value → ______;accept → ______
答案:valuable; acceptable
2. 一般将来时的被动语态:will be + 过去分词
【教材原句】The new school will be built next year.
【讲解】
一般将来时被动语态结构:主语 + will be + 过去分词(done)。
肯定句:The work will be finished tomorrow.
否定句:主语 + will not (won't) be + 过去分词。The work won't be finished tomorrow.
一般疑问句:Will + 主语 + be + 过去分词?— Will the work be finished tomorrow? — Yes, it will. / No, it won't.
特殊疑问句:疑问词 + will + 主语 + be + 过去分词?When will the work be finished?
也可用 be going to be + 过去分词 表示将来被动:The work is going to be finished tomorrow.
【例句】
• The meeting will be held next week. 会议将于下周举行。
• The new bridge will be completed in 2025. 新桥将于2025年完工。
• Will the task be done on time? 任务会按时完成吗?
【练习题】
1. 用所给词适当形式填空:The letter ______ (send) tomorrow.
答案:will be sent
2. 改为被动语态:We will build a new hospital here. → A new hospital ______ ______ ______ here.
答案:will be built
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