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沪教版八年级英语上册Unit1 Look it up 语法专项训练
一、选出不同类的一项（5分）
( )1. A. dictionary B. encyclopedia C. invent
( )2. A. discover B. invention C. create
( )3. A. already B. yet C. ever
( )4. A. look up B. find out C. come true
( )5. A. since B. for C. ago
二、单项选择题（共15分）
We ______ this dictionary for two years. It helps a lot with our English study.
A. have had B. have bought C. bought D. had
—Could you tell me ______ you found the meaning of this new word
—By checking it in an online dictionary.
A. when B. how C. why D. where
Scientists ______ many useful things so far, and they will keep working on new inventions.
A. invented B. have invented C. will invent D. invent
My brother ______ the book "English Grammar" since last month, but he hasn't finished it yet.
A. reads B. read C. has been reading D. will read
I wonder ______ the ancient people looked up new words without modern tools.
A. that B. if C. how D. what
—______ have you used this English-Chinese dictionary
—For more than three years.
A. How often B. How long C. How soon D. How many
He said that he ______ already ______ the invention story in the encyclopedia.
A. has; read B. had; read C. will; read D. is; reading
We ______ about 500 new English words since we started learning English in Grade 6.
A. learn B. learned C. have learned D. will learn
Could you please tell me ______ the nearest bookstore is I want to buy a new dictionary.
A. when B. where C. how D. why
My father ______ to the library to borrow reference books twice a month.
A. goes B. has gone C. will go D. has been going
三、用括号里单词的正确形式填空（共20分）
Tom ______ (not finish) reading the encyclopedia entry about Edison yet. He is still reading it.
Our teacher told us that Thomas Edison ______ (invent) more than 1,000 things during his lifetime.
I ______ (look up) new words in this dictionary since I got it as a birthday gift last year.
Could you tell me if you ______ (find) the information about the history of dictionaries
They ______ (study) English for five years, and now they can communicate with foreigners in simple English.
My sister ______ (have) this electronic dictionary since she entered middle school.
The scientist ______ (discover) a new kind of plant in the rainforest last year, and he ______ (write) a report about it recently.
I want to know how long you ______ (collect) different kinds of dictionaries.
He asked me if I ______ (use) an online dictionary before to check word meanings.
We ______ (not visit) the Science Museum yet. We plan to go there next weekend to learn about great inventions.
四、按要求改写句子（共20分）
He said, "I have found the meaning of this word in a dictionary."（改为间接引语）
He said that he ______ ______ the meaning of this word in a dictionary.
They have used this reference book for three months.（对划线部分提问）
______ ______ have they used this reference book
"When will you buy a new English-Chinese dictionary " Mary asked Tom.（改为间接引语）
Mary asked Tom ______ he ______ buy a new English-Chinese dictionary.
We can look up new words in an encyclopedia.（改为被动语态）
New words ______ ______ ______ up in an encyclopedia.
I know. He invented the first practical light bulb.（合并为宾语从句）
I know that he ______ the first practical light bulb.
They have been working on this new invention for half a year.（改为一般疑问句）
______ they ______ ______ on this new invention for half a year
"I will check the word's pronunciation online," Lucy said.（改为间接引语）
Lucy said that she ______ ______ the word's pronunciation online.
He has learned English since he was seven years old.（对划线部分提问）
______ ______ he ______ English
Do you know Where can we find this old dictionary （合并为宾语从句）
Do you know ______ we ______ find this old dictionary
The students have finished their reports about great inventors.（改为否定句）
The students ______ ______ their reports about great inventors.
五、连词成句（共10分）
we, since, have, this, used, dictionary, last, term (.)
how, you, tell, could, me, the, word, of, meaning, the, found ( )
invented, Edison, bulb, the, light, practical, first (.)
in, we, new, can, words, look, up, encyclopedia, an (.)
for, has, he, English, three, been, learning, years (.)
六、完形填空（共10小题，每小题2分，计20分）
Dictionaries are very important tools for English learners. They help us understand new words and use them correctly.
I 1 my first English-Chinese dictionary when I was in Grade 7. It was a gift from my English teacher. Since then, I 2 it almost every day. When I meet a new word in reading or listening, I always 3 its meaning and usage in the dictionary.
There are many kinds of dictionaries now. Some are paper dictionaries, and others are electronic ones. Electronic dictionaries are more convenient because we 4 them easily on our phones or computers. But I still like my old paper dictionary. I 5 it for more than three years, and it has become my good friend.
Last week, I wanted to know more about the invention of the telephone. I 6 the information in my encyclopedia. It told me that Alexander Graham Bell 7 the telephone in 1876. I also 8 some interesting stories about him in it.
Good dictionaries and encyclopedias 9 us a lot in our study. They open a door for us to know more about the world. I think every student 10 a good dictionary to improve their English.
( )1. A. get B. got C. have got D. will get
( )2. A. use B. used C. have used D. will use
( )3. A. look up B. look for C. look at D. look after
( )4. A. carry B. carried C. have carried D. will carry
( )5. A. have B. had C. have had D. will have
( )6. A. find B. found C. have found D. will find
( )7. A. invent B. invented C. has invented D. will invent
( )8. A. read B. reads C. have read D. will read
( )9. A. help B. helps C. helped D. will help
( )10. A. need B. needs C. needed D. will need
七、阅读理解（共10分）
Dictionaries have a long history. The earliest known dictionary was written in Sumer around 2300 BC. It was a list of Sumerian words with their meanings in another language.
In ancient China, the first dictionary called "Erya" was created during the Western Han Dynasty. It explained the meanings of words and was very important for studying ancient Chinese.
The first English dictionary, "A Table Alphabeticall", was written by Robert Cawdrey in 1604. It had about 3,000 words and their definitions. At that time, English was changing a lot, and many new words were being used. This dictionary helped people understand and use these new words correctly.
Today, dictionaries are more advanced. We have electronic dictionaries, online dictionaries, and even dictionaries with audio pronunciations. They not only tell us the meanings of words but also show us how to use them in sentences, their parts of speech, and their history.
Dictionaries are always developing. As new words are created every day, dictionaries need to be updated to include these new words. For example, words like "online", "smartphone", and "e-book" have been added to modern dictionaries in recent years.
( )1. When was the earliest known dictionary written
A. Around 2300 BC. B. During the Western Han Dynasty.
C. In 1604. D. In recent years.
( )2. What was the first English dictionary called
Erya B. A Table Alphabeticall
C. Online Dictionary D. English-Chinese Dictionary
( )3. How many words did the first English dictionary have
A. About 1,000. B. About 2,000. C. About 3,000. D. About 5,000.
( )4. Which of the following is NOT a feature of modern dictionaries
A. Audio pronunciations. B. Sentence examples.
C. Word histories. D. Only paper versions.
( )5. Why do dictionaries need to be updated
A. Because ancient dictionaries are not useful.
B. Because new words are created every day.
C. Because people don't like old dictionaries.
D. Because electronic dictionaries are more popular.
八、句子改错（20分）
I have bought this encyclopedia for two years. （ ）________
He didn't find yet the information about the invention. （ ）________
How long have you started learning to use a dictionary （ ）________
My mother told me that she will buy me a new dictionary next week. （ ）________
They have been lived in this city since 2018. （ ）________
I wonder when will he return the dictionary to the library. （ ）________
We have not read this book already. We plan to read it this weekend. （ ）________
He has been collecting different kinds of dictionaries since five years. （ ）________
The teacher said that light traveled faster than sound. （ ）________
Do you know where can I look up the meaning of this word （ ）________
答案
一、1-5 CBCCA
二、1-5 ABBCD 6-10 BBCBA
三、1. hasn't finished 2. invented 3. have been looking up 4. have found
5. have studied 6. has had 7. discovered; has written 8. have been collecting
9. had used 10. haven't visited
四、1. had found 2. How long 3. when; would 4. can be looked 5. invented 6. Have; been working 7. would check 8. Since when has; learned
9. where; can 10. haven't finished
五、1. We have used this dictionary since last term.
Could you tell me how you found the meaning of the word
Edison invented the first practical light bulb.
We can look up new words in an encyclopedia.
5. He has been learning English for three years.
六、1-5 BCAAC 6-10 BBAAB
七、（一）1-5 ABCDB
八、1. bought→had 2. yet 放在 found 之后 3. started→been 4. will→would
lived→living 6. will he→he will 7. already→yet 8. since→for
9. traveled→travels 10. can I→I can
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