Unit 1 Grammar Focus 4a-4c课时练习2025-2026学年人教版英语八年级下册

Unit 1 Time to Relax Grammar Focus (4a~4c) 课时练习 语法精讲 一、动词不定式作目的状语 动词不定式作目的状语，是指用动词不定式来表示某个动作或行为的目的，说明主语做某事是为了达到什么目的。 • 肯定：常见结构为“to+动词原形”。 • 否定：在动词不定式前加not。 • 强调：可在动词不定式前加in order to或so as to，构成“in order to/so as to +动词原形”，更强调目的。 • 位置特点：可位于句首或句末；位于句首时，通常用逗号与句子其他部分隔开。 二、动词不定式作宾语补足语 用在某些及物动词后，来补充说明宾语的动作、状态或目的等，与宾语有逻辑上的主动关系。 1. 及物动词+宾语+(not) to do 常见动词：tell, ask, choose, allow, warn, invite, wish, want, expect, encourage, advise等。 2. 及物动词+宾语+(not) do（省略to） 常见动词：make, let, have, hear, feel, see, watch等。 ⚠️ 注意：在被动语态中，to不能省略。 语法精练 一、用括号内所给单词的适当形式填空 1. My teacher always encourages us ______ (read) English newspapers in our free time. 2. The library doesn’t allow students ______ (take) food into it. 3. Let him ______ (not play) games before finishing homework. 4. Our parents often tell us ______ (not stay) up late at night. 5. We should exercise more ______ (keep) healthy every day. 二、根据汉语意思完成句子，每空一词 6. 让我们想想能做些什么来保护野生动物。 Let’s think about what we can do ______ ______ wild animals. 7. 我写这本日记是为了记录生活中的美好瞬间。 I keep this diary ______ ______ the beautiful moments in life. 8. 我的朋友希望周末带我去公园野餐。 My friend wishes ______ ______ me to the park for a picnic this weekend. 三、按要求完成句子，每空一词 9. She studies hard in order to pass the English test.（改为同义句） ______ ______ the English test, she studies hard. 10. They get up early to run in the park.（对画线部分提问） ______ ______ they get up early? 11. He works hard to improve his skills.（改为否定句） He works hard ______ ______ improve his skills. 12. My parents advise me to keep a balanced diet.（改为否定句） My parents advise me ______ ______ keep a balanced diet. 13. The girl expects her brother to help her with the box.（对画线部分提问） ______ ______ the girl expect her brother ______ ______? 四、用方框中所给单词的适当形式填空，使短文意思完整、通顺 stay check improve explore relax Digital technology helps us 14. ______ a colorful life! I love watching short videos online. They help me 15. ______ and kill time. They also allow me 16. ______ in touch with my friends easily. I use study apps 17. ______ my knowledge and skills. The apps let me 18. ______ my study plan every day. They also encourage me 19. ______ new hobbies in my free time. 五、将下列句子翻译成汉语 20. But you have to be careful and not get too caught up in it. After all, the real world is also wonderful, right? 21. How about going hiking with us this weekend? 22. What do you think of talent shows, Mike? 课时精练 一、根据句意及汉语提示填写单词 1. My grandpa often has a ______ (闲聊) with me about my school life after dinner. 2. The boy ______ (推) the door open and ran out of the room quickly. 3. You can ______ (加入) the music club if you like singing and dancing. 4. I think my sister is watching some funny animal ______ (视频). 5. There is no milk. Would you like some juice ______ (代替)? 二、用括号内所给单词的适当形式填空 6. He didn’t eat lunch, so he is making some noodles for ______ (he) now. 7. You can ______ (easy) find different kinds of books in this big bookstore. 8. Thank you for ______ (explain) this difficult word to me again. 9. My mother was ______ (worry) about me when I came home late last night. 10. The two sisters look ______ (like), but they have different hobbies. 三、将下列句子翻译成汉语 11. Once in a while, I go cycling with my friends on weekends. 12. He couldn’t join us because he had to finish his homework. 13. Although it is hard to learn a new skill, I decide to have a try. 学科网（北京）股份有限公司 $