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沪教版（新教材）初中英语八年级上册 Unit 1 Look it up! Section 4 Extending and developing competencies同步练习
一、词形转换
1. dictionary ________(复数)
2. pronounce ________(n.发音；读法)
3. electronic ________(n.电子设备；电子词典)
4. accurate ________(adv.准确地；精确地)
5. refer ________(n.参考；提及)
6. use ________(adj.有用的；实用的)
7. idiom ________(复数)
8. update ________(n.更新；最新消息)
9. grammar ________(adj.语法的；符合语法的)
10. entry ________(复数)
二、用所给词的适当形式填空
1. These ______(dictionary) provide detailed explanations of word usages.
2. You can check the ______(pronounce) of this word in the appendix.
3. Many students prefer ______(electronic) over paper ones because of their convenience.
4. To write a good composition, you need to express your ideas ______(accurate).
5. For further information, please make ______(refer) to the textbook.
6. This ______(use) app helps us look up words quickly.
7. Learning English ______(idiom) can make your speech more natural.
8. The website provides regular ______(update) on language learning tips.
9. You should pay attention to ______(grammar) rules when making sentences.
10. The ______(entry) in this dictionary cover both common and rare words.
三、重点短语
1. 查阅单词 ________________
2. 参考资料 ________________
3. 电子词典 ________________
4. 发音指南 ________________
5. 语法规则 ________________
6. 习语用法 ________________
7. 更新信息 ________________
8. 准确信息 ________________
9. 不仅……而且…… ________________
10. 在线检索 ________________
四、用所给短语的适当形式填空
look up a word, refer to reference books, electronic dictionary, pronunciation guide, grammar rules, idiom usage, update information, accurate information, not only...but also..., search online
1. When you meet a new word, you can ______ in a dictionary.
2. For professional knowledge, we often need to ______.
3. An ______ allows us to carry thousands of words in our pocket.
4. The ______ at the end of the book helps us learn how to say words correctly.
5. You must follow ______ to avoid making mistakes in writing.
6. Understanding ______ is key to communicating like a native speaker.
7. It's important to ______ to keep up with the latest language changes.
8. We need ______ to finish our research report.
9. This learning tool ____ helps us look up words ____ provides grammar exercises.
10. If you can't find the word in your dictionary, you can ______ for more details.
五、按要求完成句子
look up / accurate / refer to / update / idiom / grammar
1. You should ______ the new word in the dictionary before using it.
2. To make your report perfect, you need to collect ______ data.
3. When writing essays, we often ______ some famous works for examples.
4. The language app ______ its word database every month.
5. Learning English ______ can improve your oral English skills.
6. Paying attention to ______ is essential for learning a foreign language.
六、句型转换
1. You can look up the word in an electronic dictionary.（改为同义句）
You can ____ an electronic dictionary ____ the word.
2. Tom started to use a dictionary to learn English in 2022.（用since 2022改写句子）
Tom ____ ____ a dictionary to learn English since 2022.
3. We can get accurate information by referring to reference books.（对划线部分提问）
____ ____ we get accurate information
4. People designed electronic dictionaries to help language learners.（改为被动语态）
Electronic dictionaries ____ ____ to help language learners.
5. Have you ever used an online dictionary for your English study （作否定回答）
____, ____ ______.
七、改错（每句一处错误，划出并改正）
1. When you don't know a word, you can look up it in the dictionary.
____________________________________________________________________
We should learn refer to reference books for more details.
____________________________________________________________________
He use an electronic dictionary to check pronunciations every day.
____________________________________________________________________
Many students are interested in English idiom and want to learn them.
____________________________________________________________________
Besides look up words, we also need to understand their usages.
____________________________________________________________________
八、重点句子翻译
1. 当你遇到生词时，你可以在电子词典里查阅它。
____________________________________________________________________
查阅资料时，确保获取的信息是准确的至关重要。
____________________________________________________________________
电子词典不仅方便携带，而且能提供最新的词汇更新。
____________________________________________________________________
学习英语习语有助于我们更自然地与外国人交流。
____________________________________________________________________
我们应该参考权威资料来提高我们的英语写作水平。
____________________________________________________________________
这本词典包含了大量的词条，涵盖了单词的发音、语法和用法。
____________________________________________________________________
九、语篇填空
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。
dictionary, accurate, refer, electronic, pronunciation, idiom, update, grammar, entry, convenient, reliable, guide, search, not only, but also
When learning a foreign language, a good ____1____ is a must-have tool. ____2____ ones are becoming more popular because they are ____3____ and easy to carry. They ____4____ provide word explanations ____5____ offer ____6____ guides to help us say words correctly.
If you want to get ____7____ information about a word, you can ____8____ to the detailed ____9____ in the dictionary. It also introduces ____10____ usages and ____11____ rules, which helps us use words properly.
Many dictionaries ____12____ their content regularly to include new words. When you can't find a word in your dictionary, you can ____13____ online for more resources. Remember to choose ____14____ sources to ensure you learn the right things. This ____15____ will lead you to better language skills.
十、补全对话
根据下面的对话情景，在每个空白处填上一个恰当的句子，使对话的意思连贯、完整。
A: Hi, Li Ming! I see you're using a new tool to learn English. ____1____
B: Oh, it's an electronic dictionary. It's very helpful for my English study.
A: Really ____2____
B: Well, it can not only look up words quickly but also provide their pronunciations and grammar usages.
A: That sounds great. ____3____
B: I've been using it since last term. It has helped me improve my vocabulary a lot.
A: ____4____
B: Yes, sometimes I also refer to paper dictionaries when I need more detailed explanations.
A: ____5____. I think I should get one too to improve my English.
参考答案
一、词形转换
1. dictionaries 2. pronunciation 3. electronics 4. accurately 5. reference
6. useful 7. idioms 8. update/updates 9. grammatical 10. entries
二、用所给词的适当形式填空
1. dictionaries 2. pronunciation 3. electronics 4. accurately 5. reference
6. useful 7. idioms 8. updates 9. grammatical 10. entries
三、重点短语
1. look up a word 2. refer to reference books 3. electronic dictionary 4. pronunciation guide
5. grammar rules 6. idiom usage 7. update information 8. accurate information
9. not only...but also... 10. search online
四、用所给短语的适当形式填空
1. look up a word 2. refer to reference books 3. electronic dictionary 4. pronunciation guide
5. grammar rules 6. idiom usage 7. update information 8. accurate information
9. not only; but also 10. search online
五、按要求完成句子
1. look up 2. accurate 3. refer to 4. updates 5. idioms 6. grammar
六、句型转换
1. refer to; for 2. has used 3. How can 4. were designed 5. No; I haven’t
七、改错
1. look up it → look it up（代词需放在look和up中间）
2. learn refer to → learn to refer to（learn to do sth.固定搭配）
3. use → uses（主语he是第三人称单数，一般现在时动词用三单形式）
4. idiom → idioms（根据them可知用复数形式）
5. Besides look up → Besides looking up（besides是介词，后接动名词）
八、重点句子翻译
1. When you meet a new word, you can look it up in an electronic dictionary.
2. When referring to reference materials, it's essential to make sure the information you get is accurate.
3. Electronic dictionaries are not only convenient to carry but also can provide the latest vocabulary updates.
4. Learning English idioms helps us communicate with foreigners more naturally.
5. We should refer to authoritative reference materials to improve our English writing skills.
6. This dictionary contains a large number of entries, covering the pronunciation, grammar and usage of words.
九、语篇填空
1. dictionary 2. Electronic 3. convenient 4. not only 5. but also
6. pronunciation 7. accurate 8. refer 9. entries 10. idiom
11. grammar 12. update 13. search 14. reliable 15. guide
十、补全对话（参考合理答案）
1. What is it
2. What can it do for your study
3. How long have you been using it
4. Do you still use paper dictionaries sometimes
5. That's a good idea

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