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人教版(2024)七年級下冊英語Unit 3 Keep Fit單元語法講義(含答案)

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人教版(2024)七年級下冊英語Unit 3 Keep Fit單元語法講義(含答案)

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2025 年新版人教版七年級下冊英語 Unit 3 Keep Fit 單元語法講義
一、重點詞匯用法
fit
形容詞:意為 “健康的;健壯的”,常構(gòu)成短語 “keep fit(保持健康)” ,如:To keep fit, we should exercise regularly.(為了保持健康,我們應(yīng)該定期鍛煉)。
動詞:“適合”,例如:This pair of shoes fits me perfectly.(這雙鞋非常適合我);還可表示 “安裝”,如:They are fitting a new lock on the door.(他們正在給門安裝新鎖)。
hardly
副詞:“幾乎不;幾乎沒有”,表否定,常位于實義動詞前,助動詞、be 動詞或情態(tài)動詞后 。如:He hardly speaks in class.(他在課堂上幾乎不發(fā)言) ,She can hardly believe her eyes.(她幾乎不敢相信自己的眼睛)。
ever
副詞:“在任何時候;從來;曾經(jīng)”,用于疑問句、否定句或條件句等 。如:Have you ever been to the Great Wall (你曾經(jīng)去過長城嗎?) ,I hardly ever eat fast food.(我?guī)缀鯊牟怀钥觳停?br/>once
副詞:“一次;曾經(jīng)” ,常用于表示頻率,如:I go to the library once a week.(我每周去一次圖書館) ;也可表示過去的經(jīng)歷,如:I once met a famous singer at the airport.(我曾經(jīng)在機場遇到過一位著名歌手)。
連詞:“一旦” ,引導(dǎo)條件狀語從句,如:Once you make a promise, you should keep it.(一旦你許下諾言,就應(yīng)該遵守它)。
twice
副詞:“兩次;兩倍” ,用于描述次數(shù)或倍數(shù) ,如:I visit my grandparents twice a month.(我每月看望我的祖父母兩次) ,This box is twice as heavy as that one.(這個箱子是那個箱子的兩倍重)。
maybe
副詞:“也許;大概”,一般位于句首,修飾整個句子 。如:Maybe it will snow tomorrow.(也許明天會下雪) ,Maybe he is late for some reason.(也許他因為某種原因遲到了)。
seldom
副詞:“很少;不常”,表頻率低,位于實義動詞前,助動詞等后 。如:He seldom goes to the cinema.(他很少去看電影) ,She seldom eats meat.(她很少吃肉)。
instead
副詞:“反而;代替”,常位于句末,“instead of(而不是)” 后接名詞、代詞或動名詞 。如:I didn't have coffee. Instead, I had tea.(我沒有喝咖啡,而是喝了茶) ,She went to the park instead of staying at home.(她去了公園而不是待在家里)。
encourage
動詞:“鼓勵;激勵”,常用于 “encourage sb. to do sth.(鼓勵某人做某事)” 結(jié)構(gòu) 。如:Our teacher always encourages us to ask questions.(我們的老師總是鼓勵我們提問) ,His parents encourage him to pursue his dreams.(他的父母鼓勵他追求自己的夢想)。
succeed
動詞:“成功;達到目標”,“succeed in doing sth.(成功做某事)” 。如:She succeeded in winning the competition.(她成功贏得了比賽) ,He finally succeeded in getting a job.(他最終成功找到了一份工作)。
二、重點短語
keep fit:保持健康,如:Doing exercise every day is a good way to keep fit.(每天鍛煉是保持健康的好方法)。
play baseball:打棒球,如:They often play baseball on weekends.(他們經(jīng)常在周末打棒球)。
jump rope:跳繩,如:The children are jumping rope in the playground.(孩子們正在操場上跳繩)。
go jogging:去慢跑,如:My father likes to go jogging in the morning.(我爸爸喜歡早上慢跑)。
do sit - ups:做仰臥起坐,如:He does sit - ups every morning to strengthen his muscles.(他每天早上做仰臥起坐來增強肌肉)。
a few:幾個;一些,修飾可數(shù)名詞復(fù)數(shù) ,如:There are a few books on the desk.(桌子上有幾本書)。
look after:照顧;照料,如:You should look after your pet carefully.(你應(yīng)該細心照顧你的寵物)。
instead of:代替;而不是,如:I'll have an apple instead of a banana.(我要吃一個蘋果而不是香蕉)。
belong to:屬于,如:This bike belongs to my brother.(這輛自行車屬于我哥哥)。
make sure:確保;保證,如:Make sure you have turned off all the lights before leaving.(在離開之前確保你已經(jīng)關(guān)掉了所有的燈)。
三、重點句型
How often do you exercise :你多久鍛煉一次?
回答用頻度副詞或短語,如 “Once a week.(一周一次)” ,“Twice a month.(一個月兩次)” ,“Every day.(每天)” 。
It's important to keep fit.:保持健康很重要。
類似結(jié)構(gòu)還有 “It's + 形容詞 + to do sth.”,如:It's necessary to drink enough water every day.(每天喝足夠的水是必要的) 。
What sports do you like best :你最喜歡什么運動?
回答如 “I like basketball best.(我最喜歡籃球)” ,“My favorite sport is swimming.(我最喜歡的運動是游泳)” 。
I think you should exercise more.:我認為你應(yīng)該多鍛煉。
“should” 后接動詞原形,表示建議,如:I think you should get enough sleep.(我認為你應(yīng)該有足夠的睡眠) 。
四、語法知識
(一)頻度副詞
常見頻度副詞:always(總是),usually(通常),often(經(jīng)常),sometimes(有時),seldom(很少),hardly ever(幾乎從不),never(從不)。
位置
實義動詞前:He always gets up early.(他總是早起) ,She often goes to school on foot.(她經(jīng)常步行去上學(xué))。
be 動詞、助動詞或情態(tài)動詞后:I am usually busy on weekdays.(我工作日通常很忙) ,They have never been to the beach.(他們從未去過海灘) ,You should sometimes listen to music to relax.(你有時應(yīng)該聽音樂放松一下)。
對頻度副詞提問:用 “How often...” ,如:How often do you watch TV (你多久看一次電視?) 。
(二)物主代詞
形容詞性物主代詞:my(我的),your(你的;你們的),his(他的),her(她的),its(它的),our(我們的),their(他們的;她們的;它們的)。
用法:后面必須接名詞,作定語 ,如:This is my bag.(這是我的包) ,Their classroom is very clean.(他們的教室非常干凈)。
名詞性物主代詞:mine(我的),yours(你的;你們的),his(他的),hers(她的),its(它的),ours(我們的),theirs(他們的;她們的;它們的)。
用法:相當于 “形容詞性物主代詞 + 名詞”,后面不能接名詞,可作主語、賓語或表語 ,如:This book is mine.(這本書是我的) ,The pen is yours.(這支筆是你的) ,These toys are theirs.(這些玩具是他們的)。
(三)情態(tài)動詞 should 的用法
表示建議:意為 “應(yīng)該” ,后接動詞原形 ,如:You should study hard to get good grades.(你應(yīng)該努力學(xué)習(xí)以取得好成績) ,We should eat more fruits and vegetables.(我們應(yīng)該多吃水果和蔬菜)。
否定形式:shouldn't ,表示 “不應(yīng)該” ,如:You shouldn't stay up too late.(你不應(yīng)該熬夜太晚) ,They shouldn't waste water.(他們不應(yīng)該浪費水)。
一般疑問句:把 should 提到句首 ,如:Should I tell him the truth (我應(yīng)該告訴他真相嗎?) ,肯定回答 “Yes, you should.” ,否定回答 “No, you shouldn't.” 。
五、相關(guān)練習(xí)
(一)詞匯練習(xí)
寫出下列單詞的適當形式
fit(現(xiàn)在分詞)_________
hardly(反義詞)_________
once(基數(shù)詞)_________
they(名詞性物主代詞)_________
succeed(名詞)_________
用所給詞的適當形式填空
We need to do more exercise to keep _________ (fit).
He _________ (hardly) ever eats junk food.
I go to the library _________ (two) a week.
This book is _________ (my).
Our teacher encourages us _________ (read) more books.
(二)短語翻譯
保持健康 _________
打棒球 _________
跳繩 _________
去慢跑 _________
做仰臥起坐 _________
幾個;一些 _________
照顧;照料 _________
代替;而不是 _________
屬于 _________
確保;保證 _________
(三)句型轉(zhuǎn)換
I exercise every day.(對劃線部分提問)
_________ _________ do you exercise
This is my basketball.(改為同義句)
This basketball _________ _________.
You should drink more water.(改為否定句)
You _________ _________ more water.
He usually goes to school by bike.(改為一般疑問句)
_________ he usually _________ to school by bike
(四)語法選擇
1.-_________ do you go to the movies
-Once a month.
A. How long B. How often C. How soon D. How many
2.This is _________ eraser. _________ is in the pencil - box.
A. my; Hers B. mine; Her C. my; Her D. mine; Hers
3.You _________ eat too much junk food. It's bad for your health.
A. should B. shouldn't C. need D. needn't
4.My father often encourages me _________ new things.
A. try B. to try C. trying D. tried
(五)寫作練習(xí)
以 “My Favorite Sport” 為題,寫一篇短文,介紹你最喜歡的運動。要求:包含運動的好處、你多久做一次這項運動以及你喜歡它的原因等,不少于 50 詞 。
練習(xí)答案
(一)詞匯練習(xí)
fitting; almost; one; theirs; success
fit; hardly; twice; mine; to read
(二)短語翻譯
keep fit
play baseball
jump rope
go jogging
do sit - ups
a few
look after
instead of
belong to
make sure
(三)句型轉(zhuǎn)換
How often
is mine
shouldn't drink
Does; go
(四)語法選擇
B 2. A 3. B 4. B
(五)寫作練習(xí)(參考范文)
My Favorite Sport
My favorite sport is swimming. It is really interesting and good for my health. Swimming can make me strong and keep me fit.
I go swimming twice a week, usually on weekends. I enjoy the feeling of swimming in the cool water, especially in summer. It makes me feel relaxed and forget all the troubles. Also, I can make some new friends at the swimming pool. That's why I love swimming so much.

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