内容正文:
Unit4 Preparing for the Topic
重点知识点解析
1. Let's go and make a snowman. 的用法
核心考点为Let's的结构、make a snowman的含义。
① Let's的用法:
Let's = Let us,表“咱们”,结构Let's + 动词原形用于提建议,常见回应:Good idea./Sounds great!。
② make a snowman:
表“堆雪人”,make表“制作”,snowman的复数是snowmen。
例句:
—Let's go hiking this weekend.
—Sounds great!
Children often make snowmen in winter.
2. —What's the weather like in autumn? 的用法
核心考点为天气询问句型、时间介词in/on/at的区别。
① 天气句型:
What's the weather like...? = How's the weather...?,表“……的天气怎么样?”;weather是不可数名词。
② 时间介词:
· in:接年/月/季节/上午/下午(如in spring);
· on:接具体日期/星期/某天的上午(如on Sunday morning);
· at:接钟点/正午/夜晚(如at 8 o'clock)。
例句:
—What's the weather like in summer?
—It's very hot.
We have a party on September 10th.
3. Which season does Miss Wang like best? 的用法
核心考点为“最喜欢”的表达。
Which... do you like best? = What's your favorite...?,均表“你最喜欢哪个……?”。
例句:
Which sport do you like best? = What's your favorite sport?
She likes math best. = Her favorite subject is math.
4. And I'm not really good at playing football. 的用法
核心考点为be good at的搭配。
be good at = do well in,表“擅长……”,后接名词/代词/动词-ing形式。
例句:
I'm good at drawing. = I do well in drawing.
He is good at making friends.
5. Why not join the football club? 的用法
核心考点为Why not...?的建议句型。
Why not + 动词原形...? = Why don't you + 动词原形...?,表“为什么不……呢?”,用于提建议。
例句:
Why not go to the park? = Why don't you go to the park?
6. I hope I can play football well like you. 的用法
核心考点为hope的搭配、like的词性。
① hope的搭配:
· hope to do sth.:希望做某事;
· hope (that) + 从句:希望……;
· 无hope sb. to do sth.结构,表“希望某人做某事”用wish sb. to do sth.。
② like的词性:
· 作介词:表“像……一样”;
· 作动词:表“喜欢”,后接sth./sb.或doing/to do sth.。
例句:
I hope to visit Beijing.
He runs like a rabbit.
I like reading books.
7. It's fun to walk by the blue lake. 的用法
核心考点为It's + 形容词 + to do sth.结构、by的含义。
① 句型结构:
It's + 形容词 + to do sth.中,it是形式主语,真正主语是to do sth.,表“做某事是……的”。
② by的含义:
· 表“在……旁边”;
· 表“通过(方式)”“乘坐(交通工具)”。
例句:
It's interesting to watch movies.
She sits by the window.
We go to school by bus.
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Unit4 Wrapping Up the Topic
重点知识点解析
1. It is warm and rains a lot. 的用法
核心考点为rain的词性与rain a lot的同义转换。
① rain的词性:
· 作动词:表“下雨”;
· 作名词:表“雨水”,不可数名词。
② rain a lot的同义表达:
It rains a lot. = It often rains. = There is a lot of rain.
类似用法还有snow:
It snows a lot. = It often snows. = There is lots of snow.
例句:
It rains a lot in summer.(夏天经常下雨)
It snows a lot in Harbin in winter.(哈尔滨冬天常下大雪)
2. Some are running like wind. Some others are having three-legged races as a team. 的用法
核心考点为like的介词用法、others的搭配、as的介词用法。
① like作介词:
表“像……一样”,后接名词/代词。
例句:
He runs like a cheetah.(他跑得像猎豹一样快)
What is your new classmate like?(你的新同学是什么样的人?)
② others的搭配:
Some... (some) others...表“一些……,另一些……”,others = other + 名词。
例句:
Some students are reading, others are writing.(一些学生在看书,另一些在写字)
Don't laugh at others.(不要嘲笑别人)
③ as作介词:
表“作为;当作”。
例句:
She works as a volunteer in the hospital.(她在医院做志愿者)
As your friend, I will help you.(作为你的朋友,我会帮你)
3. Some of them are watching on the sides of the playground. 的用法
核心考点为some of them的结构、on the sides of的含义。
① some of them:
of后接宾格代词(如them/us),谓语动词单复数由前面的主语决定。
例句:
Some of us are going to the park.(我们中的一些人要去公园)
One of them is from Canada.(他们中的一个来自加拿大)
② on the sides of:
表“在……的边上”,side可用单数或复数,介词用on。
例句:
There are benches on each side of the road.(马路两边都有长椅)
We stand on the side of the river to watch the sunset.(我们站在河边看日落)
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Unit4 Exploring the Topic
重点知识点解析
1. On sunny or cloudy days, they play it outdoors. 的用法
核心考点为“名词+y”构成天气形容词的规则。
部分名词+后缀y可构成对应形容词(表天气特征),变化规则:
· 一般名词直接加y:cloud→cloudy(多云的)、rain→rainy(多雨的);
· 重读闭音节结尾(单辅音),双写辅音加y:sun→sunny(晴朗的)、fog→foggy(多雾的)。
例句:
It’s windy today.(今天有风)
London is often foggy in winter.(伦敦冬天常起雾)
2. Exercise is good for your health, but how do you do it? 的用法
核心考点为exercise的词性、be good for的搭配。
① exercise的词性:
· 不可数名词:表“锻炼”;
· 可数名词:表“练习;训练活动”;
· 动词:表“锻炼”。
② be good for:表“对……有益”,后接名词/代词。
例句:
We need more exercise.(我们需要更多锻炼)
Doing eye exercises is good for your eyes.(做眼保健操对眼睛有益)
3. For most sports, it's important to warm up before exercise. 的用法
核心考点为warm up的含义、before的用法。
① warm up:表“热身”,动词短语;
② before:
· 作介词:后接名词/代词(如before 7 o'clock);
· 作连词:后接句子(如before he goes to bed)。
例句:
We should warm up before running.
I finish homework before dinner.
4. Don't do sports too much in very hot or cold weather. 的用法
核心考点为祈使句的结构、too much的用法。
① 祈使句:
· 肯定式:动词原形开头(如Look at the blackboard);
· 否定式:Don't + 动词原形(如Don't talk loudly);
· 特殊用法:No + 名词/doing(如No smoking)。
② too much:
修饰不可数名词或动词,表“太多”。
例句:
Don't eat too much sugar.
Watching TV too much is bad for eyes.
5. He keeps running and passing the ball. 的用法
核心考点为keep的搭配、pass的双宾语结构。
① keep的搭配:
· keep + 动词-ing:表“持续做某事”;
· keep sb./sth. + 形容词:表“保持……状态”;
· keep sb. doing sth.:表“让某人一直做某事”。
② pass的双宾语:
pass sb. sth. = pass sth. to sb.,表“把某物传给某人”。
例句:
Keep trying, and you'll succeed.
Pass me the pen. = Pass the pen to me.
语法讲解
(一)宾格人称代词
人称代词分主格(作主语)和宾格(作动词/介词的宾语),宾格形式如下:
人称
单数宾格
复数宾格
第一人称
me
us
第二人称
you
you
第三人称
him/her/it
them
用法:宾格用于实义动词后(如love us)、介词后(如learn from them)。
例句:
My parents look after me well.
Give the book to him.
(二)现在进行时
表“说话瞬间/此刻正在进行的动作”,常与now/look/listen等连用。
1. 构成:
主语 + be (am/is/are) + 动词-ing形式
2. 用法:
· 表说话时正在进行的动作(如I'm reading now);
· 表当前阶段进行的动作(如They're working in a factory these days);
· 表近期计划的动作(如She's flying to Shanghai tomorrow)。
3. 动词-ing形式构成规则:
· 一般动词直接加-ing:play→playing;
· 以不发音e结尾,去e加-ing:make→making;
· 重读闭音节结尾(单辅音),双写辅音加-ing:run→running;
· 以ie结尾,变ie为y加-ing:lie→lying。
4. 句式变化:
· 否定句:主语 + be + not + doing(如I'm not watching TV);
· 一般疑问句:Be + 主语 + doing?(如Are you reading?);
· 特殊疑问句:特殊疑问词 + be + 主语 + doing?(如What are you doing?)。
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Unit4 Developing the Topic
重点知识点解析
1. It helps them keep healthy. 的用法
核心考点为help的用法、healthy的构成。
① help的用法:
· 作动词:
· help sb. with sth.:在某方面帮助某人
· help sb. (to) do sth.:帮助某人做某事(to可省略)
· 作名词:表“帮助”,既可以作可数名词也可以作不可数名词。
② healthy的构成:
由名词health + 后缀y构成,表“健康的”,常用搭配:keep healthy(保持健康)、healthy food(健康的食物)。
例句:
He helps me with my English.
Exercise helps me (to) study well.
We should eat healthy food and keep healthy.
2. How often do you do it? 的用法
核心考点为how often的用法。
how often意为“多久一次”,用于对动作发生的频率提问,回答常用频度副词(often/sometimes/never)或表示频率的短语(every year/once a week)。
例句:
—How often do you walk the dog?
—Twice a week.
—How often does your grandfather do Tai Chi?
—Every day.
3. People travel here to ski in winter. 的用法
核心考点为不定式作目的状语。
to ski是不定式结构,在句中作目的状语,表“为了滑雪”。
例句:
I study hard (to find) a good job.
He gets up at 5:30 (to take) the early train.
4. I can learn a lot from it. 的用法
核心考点为learn的搭配、a lot与a lot of的区别。
① learn的搭配:
· learn sth.:学习某事
· learn to do sth.:学习做某事
· learn from...:向/从……学习
· learn about...:了解……(= know about)
② a lot与a lot of的区别:
· a lot:作副词,表“非常;很”(修饰动词);作代词,表“许多”(作宾语)。
· a lot of = lots of:修饰可数/不可数名词,表“许多”。
例句:
My brother wants to learn Japanese.
You can learn many things from books.
I love my parents a lot.
A lot of students are doing sports on the playground.
5. It's lots of fun! 的用法
核心考点为fun的用法。
· fun作不可数名词:表“乐趣”,常用搭配:have fun (doing sth.)(玩得开心)、have a good time(同义短语)。
· fun作形容词:表“有趣的”(= interesting)。
例句:
The boys have fun playing games.
Skiing is very fun. = Skiing is very interesting.
It's fun to walk by the blue lake.
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