一、 导读：

二、导思：

1.体会这篇文章里副词的用法

Jennifer was found to have dangerously low blood sugar levels (低到很危险的程度) and was treated immediately.（立即） Her worried parents told the doctor that their daughter missed breakfast that day and hardly（= rarely几乎不） touched her dinner the day before. Fortunately, she is now out of danger. Her doctor says that she will make a full recovery in a day or two.  

The purpose: _____________________________________________

2.了解本课中否定前缀，查字典再拓展几个类似用法。

（1） ....one in ten over-exercise and four percent even take weight-loss medicine.

It is normal for teenagers to be slightly overweight.

（2） I warned her that skipping meals was unhealthy.

over-：放在动词前面表示：太，过于

for instance: _______________________________________________________________________

也可放置于名词，形容词和副词前：for instance: _______________________________________

un-: 放在名词、副词和形容词前表示“不，非；未”

For instance: ________________________________________________________________________

_________________________________________________________________________________

猜一猜：un- 放在动词前面表示什么意思：unlock /unfold/ uncover

三、导学&导练：

句式分析

1.  In a society where being thin is often seen as being beautiful，teenagers sometimes turn to extreme methods to slim down quickly.

本句为复合句,句中where引导定语从句， 修饰先行词society。

考点提炼

where引导定语从句的用法：

(1) 先行词往往是表示具体地点的名词(如place, school, house等) 或表示抽象地点的名词(如point, situation, case, position等) ；

(2) where在定语从句中做地点状语， 相当于“介词+which"， 可以引导限制性定语从句，也可以引导非限制性定语从句。

① This is the house where/in which I lived two years ago.  这是我两年前住的房子。

② We have reached a point where a change is needed.     我们到了需要改变的地步。

③ She is going to settle in Macao, where/in which she has some close friends. 她要到澳门定居，在那里她有一些密友。

特别提醒

先行词为表示地点的名词时,其后的定语从句并非都用where来引导。

① The place where LuXun once worked has become a museum.(从句中缺少地点状语, 故关系词用where)

② The place which/that I visited last week is in HongKong.

(从句中缺少宾语, 故关系词用which或that)

练一练：1.单句语法填空

(1) (2022·天津和平区高一月考)When harvest came around，he was already selling herbs，vegetables and cotton in the market ________ people from the towns met regularly.

(2) (2018·全国卷Ⅱ改编) Thursday sees us make the short journey to Paris ______ we will visit Disneyland Paris park, staying until late to see the parade and the fireworks.

(3) (2023·黄冈中学高一月考) Finally he reached a lonely island ________ was completely cut off from the outside world.

2.判断下列句子中画线部分是地点状语从句还是定语从句

(1) (2018·江苏卷改编) Self-driving is an area where China and the rest of the world are on the same starting line.

(2) (2023·泰州高一月考) This kind of medicine should not be placed where it is accessible to young children.

(3) (2022·常州高一期末) In her book Fantastic Beasts and Where to Find Them, J. K. Rowling created a world where both children and adults can get pleasure.

2.  ...... and there is no reason why they should be worried.......

why引导定语从句, 修饰reason, 关系副词why在从句中做原因状语, 可用for which代替。

reason后接定语从句, 如果引导词在定语从句中做宾语、定语, 从句应由关系代词that/which引导(可省略); 若做状语, 应由why引导。

The reason why...is that.........的原因是……

the reason for(doing) sth.   (做)某事的原因

Tom should tell me the reason why he was late for our date this morning.

汤姆应该告诉我他今天上午约会迟到的原因。 (why做原因状语)

Did you hear the reason (that) he gave for being late?

你听到他为迟到找的理由了吗?   (that做宾语)

练一练：单句语法填空

The reason ____________ he whispered to me was that he was afraid to be heard by other.

The reason _____________ he was absent was that he was ill.  

The government gave several reasons ____________ increasing the tax on cigarettes.

3.  She pointed out that it is very important that they try to lose weight properly.....

他们尽量适当减肥是非常重要的……

“It+be+adj.+that引导的主语从句”句型

(1) 当that引导的从句做主语时, 为了保持句子平衡, 避免头重脚轻, 通常把它移到句子后面， 用it做形式主语, 放在句首。that在句中仅起连接作用, 不做成分, 但不能省略。

(2) “It+be+adj.+that引导的主语从句”句型中常见的形容词有clear, obvious, evident, true， possible，certain，likely，probable等。

It is obvious that you’ve made a big mistake.  显然，你犯了一个大错。

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