新版上海牛津版七年级上册unit4知识点及练习
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新版上海牛津版七年级上册unit4知识点及练习一、知识点一．形容词常放在名词前来修饰名词，即“怎么样的….”,作定语。
eg:an apple----an red applea day----a sunny daycartoons----interesting cartoonsstreets----busy and noisy streets注：①有形容词修饰的名词叫名词词组，名词词组的构成是“冠词、数词+形容词+名词“①两个形容词之间可用and连接【跟踪练习】一个漂亮的老师__________________这只很肥的猪____________________两个又红又大的苹果____________________二：形容词放在be动词后，构成“sb/sth+be+adj”表“…..怎么样”，作表语eg:The weather is warm in Spring.Winter is often cold and snowy.注：be动词后面的形容词表明的都是主语的特征，我们还有其他的动词后面也是跟形容词来表明主语的特征：1.变得:get,turneg:In spring,the weather gets warm.Everything turns green.2. 感官动词;看起来（look）,听起来（sound），闻起来（smell），尝起来（taste），摸起来，感觉起来（feel）eg:The cake smells delicious.You look sad.be动词，感官动词等都统称为系动词【跟踪练习】The flower smells_______.(good)The house looks_________.(beauty)In autumn,leaves turn______.(绿色的)It’s getting very_________.(冷的)三：It is+adj+to do sth做某事怎么样It is nice to eat ice cream in the park.这个句子真正的主语不是it,而是整个动词不定式的部分，因此我们把it称为“形式主语”，这个句子也可以写成：To eat ice cream in the park is nice.我们很少采用这种形式，因为会显得句子头重脚轻【跟踪练习】游泳非常的有趣。
_____________________________________读这本书非常的有用。
_________________________________四，形容词常常由名词转化而来(1).有些形容词是名词加-y构成的（尤其是一些与天气有关的名词rain雨----rainy多雨的；cloud云----cloudy多云的；wind风---有风的；snow雪---下雪多的；health健康---healthy健康的；luck幸运----lucky幸运的注意：①名词时“辅元辅”重读闭音节结尾，双写最后一个字母再加-ysun太阳---sunny晴朗的；fog雾---foggy有雾的；fun趣味---funny有趣的，滑稽的①少数以不发音的-e结尾的名词变形容词时，去掉-e再加-y(2).有些形容词是名词加-ful(多的，满的)。
或-；-less(少的，没有的)care关注-----careful仔细的----careless粗心的hope希望-----hopeful有希望的-----hopeless绝望的【跟踪练习】1. It is often_____(snow,snowy)in February in Harbin.2. The sun is shining brightly.It is a_____(windy,wind)day.3.He is so______(care careful)that he gets an“A+”in the exam.五、形容词的位置：（1）不定代词+adj.如：something importantnothing new【跟踪练习】()1.Do you have____to tell us?A. something newB.new somethingC.anything newD.new anything()2.Mike,I have____to tell you.A. important somethingB.important anythingC.something importantD.anything important(2)adj+enough如：big enough【跟踪练习】()1.I'm not___to lift the heavy box.A. short enoughB.enough tallC.health enoughD.strong enough()2.The girl works hard___to pass the exam.A. enoughB.tooC.stillD.yet练习：一．用括号中单词完成句子。
1This plant needs a warm and_____(sun)place.2It is a_____(snow)winter this year.3Jimmy told us about his_____(amaze)trip to Hong Kong.4The Green spent a_____(love)day by the sea.5Jenny often wears a_____(fun)hat.6. You should take an umbrella with you.It‟s going to be_____(rain).7. I read some_____(interest)books during the summer holiday.8. Little Tom can‟t move that_____(heavy)box.9. This girl is very_____(kind),she often helps others.10.It‟s_____(easy)for me to do the job.二，选择题1. It is interesting_____cartoons and most children like them very much.A. watchB.to watchC.watchingD.watches2. The food not only looks nice but also smells_____.A. goodB.wellC.badD.wonderfully3. It is important_____a foreign language.A. of us to learnB.for us to learnC.of us learningD.for us learning4. Is_____necessary to tell his father everything?A. thatB.thisC.itD.he5.She does not seem as_____as her mother.A.happierB.happyC.happilyD.more happily6.Tony finds it_____to collect coins.A.excitedB.interestingC.interestD.excite7.It is not easy_____the question.A.to answerB.answerC.answeringD.Answered8.It is a_____day today.Let us go to the park for a walk.A.sunB.sunnyC.rainD.rainyUnit4知识点：1、In spring,the weather starts to get warm.在春天，天气开始变暖。
get“变得”，后常接形容词作表语。
The weather starts to get cool.“得到，收到”get a letter from sb.=hear from sb.收到某人来信2、The wind blows gently.微风轻拂。
3、Everything truns green.everything不定代词，意为“所有事物，一切”，在句中可作主语、宾语或表语。
everything 作主语时，谓语动词用单数形式。
nothing没什么，没有东西anything任何事物。
通常用于否定句或疑问句。
Something某事某物。
通常用于肯定句。
4、It is exciting to take a trip in spring.在春天旅行是令人兴奋的。
take a trip＝have a trip去旅行take/have a rest休息一下take/have a walk散步take/have a look看一看本句中使用了“It is+形容词+to do sth.”的结构，意为“做某事是……样的”。
It is nice to eat ice cream in the hot weather.5、Many people like to go to the beach and swim in the sea.很多人都喜欢去海边，到海里游泳。
like to do sth.=want to do sth.very much=would like to do sth.想要做某事like doing sth=enjoy doing sth.=love doing sth.喜欢做某事go to the beach去海滩，去海边in the sea在海里6、In autumn,everything changes.在秋天，一切都变了。
7、Leaves trun brown,red or yellow and start falling from the trees.leaves是leaf“树叶”的复数形式。
leave做动词，是“离开，出发”的意思。
leave for前往leave A for B离开A地前往B地fall掉落8、It is nice to go on a picnic at this time of year because the weather is cool and dry. go on a picnic意为“去野餐”I want to go on a picnic this afternoon.dry反义词wetat this time of year“在每年的这个时候”，注意year前不能加冠词或every,each等。
