Unit 5-6 宾语从句的用法讲练 2025-2026学年外研版英语八年级下册

该初中英语导学案聚焦宾语从句语法，系统讲解that、if/whether及疑问词引导的宾语从句，涵盖定义、用法及时态规则。课堂导入从基础到进阶，Unit5先讲that和if/whether引导的从句，Unit6衔接疑问词引导及时态呼应，构建递进式学习支架，帮助学生逐步掌握语法逻辑。 资料以“精讲+精练”为特色，例句贴近生活便于理解，练习分填空、翻译等层次巩固知识。通过辨析不同引导词培养思维品质，分单元递进设计提升学习能力，助力学生夯实语言基础，符合新课标语言能力与学习能力的培养要求。

Unit5单元语法精讲 宾语从句(1) that 和 if/whether 引导的宾语从句 放在动词或介词后面作宾语的句子,我们称为“宾语从句”。宾语从句可以分为三类: 1. that 引导的宾语从句; 2. if/whether 引导的宾语从句; 3. 疑问词引导的宾语从句。 在本单元我们学习 that 和 if/whether 引导的宾语从句。 1. that 引导的宾语从句 当谓语动词表示肯定的概念,如“希望”“相信”“知道”或“说”时,其后面的句子一般用 that 引导。that 没有任何词汇意义,只具有语法功能,目的是使读者清楚后面的句子是作前面动词的宾语的,多数情况下 that 可以省略。 例句 - I hope (that) it will snow this winter. 我希望今年冬天会下雪。 - I believe (that) we shall become good friends. 我相信我们会成为好朋友。 - Betty thinks (that) trees can improve the air. 贝蒂认为树木可以改善空气质量。 【注意】并非所有的动词后面都可接 that 引导的宾语从句。常接 that 引导的宾语从句的谓语动词有:believe, expect, explain, feel, hear, hope, imagine, prefer, promise, report, say, see, tell, think, understand, warn, wish 等。 2. if/whether 引导的宾语从句 我们如果要表达是否或不确定的概念时,从句就要用 if 或 whether 来引导,不能用 that。 例句 - He does not know whether they will plant trees on Saturday or not. 他不知道他们周六是否会去植树。 - He asks if/whether we will go fishing on Sunday. 他问周日我们是否会去钓鱼。 【注意】在宾语从句中没有 or not 的情况下,一般来说 if 和 whether 都可以用。如果从句中有 or not 的话,一般就要选择 whether,构成 whether ... or not 的结构。 单元语法精练 一、阅读下面句子,在空白处填入一个适当的单词或根据括号内单词的正确形式填空。 1. Jill says _ her favourite festival is the Spring Festival in China. 2. I wonder _ you can help me with my English. 3. He believes _ his father loves him very much. 4. I want to know _ the meeting will begin at seven in the evening. 5. Sam isn't sure _ there _ (be) enough time to explore the whole town. 6. I wonder _ he will come or not. 二、翻译句子。 1. 我想知道你到过北京没有。 _ 2. 我知道他会返回的。 _ 3. 他说他将在周五上午买一条领带。 _ 4. 汤姆告诉妈妈他将来想成为一名科学家。 _ 5. 露西不确定他明天是否会来参加聚会。 _ 答案 一、1. that 2. if/whether 3. that 4. if/whether 5. whether/if, is 6. whether 二、1. I wonder if/whether you have been to Beijing. 6. I knew that he would return. 7. He says that he will buy a tie on Friday morning. 8. Tom told his mother that he wanted to be a scientist in the future. 9. Lucy is not sure if/whether he will come to the party tomorrow. Unit 6单元语法精讲 宾语从句(2) 疑问词引导的宾语从句 1、 疑问词引导的宾语从句 有的宾语从句既不用 that 引导,也不用 whether 或 if 引导,而是用 what, when, where, how 或 why 等疑问词引导,这是从句意思表达的需要。例如要表达“他问什么时间出发”时,句中的“什么时间”必须用一个疑问词才能表达。遇到这类疑问时,我们就要使用相应的疑问词来引导从句。在疑问词引导的宾语从句中,要用陈述句语序。 例句 - They couldn't believe what they heard on the news. 他们简直不敢相信从新闻中听到的消息。 - He asks how we can help protect the environment. 他问我们怎样才能为保护环境出力。 - I do not understand why they like computer games so much. 我不理解他们为什么如此喜欢电脑游戏。 - They have not decided where they should go for the holiday. 他们还没有决定到什么地方去度假。 - Do you know when we will hold the sports meeting? 你知道我们什么时候开运动会吗? 二、宾语从句的时态 (1) 当主句是现在时态时,从句可以根据实际情况选择不同的时态。 (2) 当主句是过去时态时,从句一般使用相应的过去时态。 例句 - I can hardly believe we're in the city centre. 真不敢相信我们是在市中心。 - I'm sure it'll be fantastic to see the city from the top. 我相信从山顶上看到的城市风景将会是极好的。 - We thought somebody was moving about. 我们以为有人在走动。 - I did not know who she was. 我不知道她是谁。 单元语法精练 一、选择疑问词“what, when, where, why, how”补全下面句子。 1. We don't know _ causes the seasons to change. 2. The teacher told us _ the next solar eclipse will happen in our city. 3. Scientists are studying _ pandas prefer to live in bamboo forests. 4. Could you explain _ plants make food from sunlight? 5. No one is sure _ the rare bird builds its nests in the mountain. 6. The book tells us _ we can protect the endangered sea turtles. 7. I wonder _ the cherry blossoms will bloom this year. 二、用括号内所给单词的正确形式填空。 1. The teacher says that the sun always _ (rise) in the east. 2. I learned yesterday that many plants _ (need) water and sunlight to grow. 3. The scientist explains why the leaves _ (turn) yellow in autumn. 4. My dad told me that the Great Barrier Reef _ (be) the largest coral reef system in the world. 5. Do you know why the moon _ (look) brighter on some nights than others? 6. The reporter says that the number of wild tigers _ (increase) over the past five years. 7. Do you know _ causes lightning during a thunderstorm? 答案 一、1. what 2. when 3. why 4. how 5. where 6. how 7. when 二、1. rises 2. needed 3. turn 4. was 5. looks 6. has increased 学科网(北京)股份有限公司 $