Unit1 Look it up重点词汇句子专项训练（含答案）2025沪教版八年级上册英语

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沪教版八年级上册英语Unit1 Look it up重点词汇句子专项训练
一、词汇运用
（一）根据首字母或汉语提示写单词.
When you don't know a word, you can l______ it up in a dictionary.
A thesaurus is a very useful book that helps you find s______ of words.
Dictionaries are great tools for us to learn new words. They can provide us with p______ pronunciation and clear definitions.
We can get lots of useful i______ from the Internet, but we need to judge whether it's reliable.
Using reference books can improve our study e______ and help us learn better.
There are many different ______ (资料来源) we can use when we do research, like books, magazines and websites.
Please give me a ______ (确切的) answer. I don't want any vague ideas.
Historical events can tell us a lot about the development of human society. For example, the Industrial Revolution is an important ______ (历史的) event.
It's very ______ (方便的) to look up words using online dictionaries.
You should use grammar ______ (正确地) to make your sentences grammatically correct.
（二）用所给单词的适当形式填空
Dictionaries are very ______ (help) for us to learn English.
We need to learn how to use different sources of information ______ (proper).
The Internet provides us with a great deal of ______ (inform).
Can you give me a more ______ (precise) explanation of this difficult sentence
These reference books can improve our study ______ (efficient).
Using a thesaurus can help us find better ______ (word) to express our ideas.
Historical stories are always very ______ (interest) and we can learn a lot from them.
It's important to choose ______ (rely) information when we do research.
We should develop good reading ______ (skill) to understand texts better.
Look up words in a dictionary is a basic study ______ (method).
二、句子训练
（一）完成句子
当你遇到新单词时，你可以在词典里查阅它们。
When you meet new words, you can ______ them ______ in the dictionary.
百科全书能给我们提供关于各种主题的详细知识。
Encyclopaedias can provide us with ______ knowledge about ______ topics.
同义词词典能帮助你找到单词的同义词。
A thesaurus can help you find the ______ of words.
使用不同的信息来源能提高你的学习效率。
Using different ______ of information can improve your study ______.
重要的是要正确地使用参考资料。
It's important to use ______ materials ______.
（二）句型转换
We can look up information in reference books.（对划线部分提问）
______ ______ we look up information
Dictionaries are very helpful tools for learning English.（改为感叹句）
______ ______ tools dictionaries are for learning English!
You should use online dictionaries to look up words.（改为一般疑问句）
______ I ______ online dictionaries to look up words
The Internet provides us with a lot of information.（改为同义句）
The Internet ______ a lot of information ______ us.
Looking up words helps us understand new vocabulary.（改为否定句）
Looking up words ______ ______ us understand new vocabulary.
选词填空（从方框中选择合适的单词，并用其正确形式填空）
We can use ______ dictionaries to look up words quickly.
This is a very useful ______ book. It helps me a lot.
We should learn about some ______ events to know more about our country.
Can you help me ______ this math problem It's too difficult for me.
Reading more books can ______ your reading ability.
It's very ______ to take a subway to go to work.
We should get ______ from reliable sources.
You need to practice more to improve your writing ______.
Please ______ the new words in the dictionary before you read the passage.
We can get a lot of ______ from the Internet, but we should be careful to choose.
答案
一、词汇运用
（一）根据首字母或汉语提示写单词
look
synonyms
precise
information
efficiency
sources
precise
historical
convenient
properly
（二）用所给单词的适当形式填空
helpful
properly
information
precise
efficiency
words
interesting
reliable
skills
method
二、句子训练
（一）完成句子
look; up
detailed; various
synonyms
sources; efficiency
reference; properly
（二）句型转换
Where can
What helpful
Should; use
provides; for
doesn't help
三、选词填空
online
reference
historical
solve
improve
convenient
information
skills
look up
information
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