北师大版（2019） 必修第二册 Unit 4 Information Technology Lesson 3 Internet and Friendships 知识点课件-(14张ppt)

(共14张PPT)
Language points
The Internet Harms Friendships
While the Internet can bring people closer together, it can also harm friendships.
while 意为“虽然；尽管”, 相当于 though/although, 引导让步状语从句。
（1）while 意为“当……时”，引导时间状语从句。从句中的谓语动词是延续性的。
（2）while 位于句中，连接分句，意为“而……；却”。
While Tom was at university，he would study in the library.
汤姆上大学时，他会在图书馆里学习。
My father is in favour of my plan，while my mother is against it.
我父亲支持我的计划，而我妈妈反对它。
Firstly, talking online is no replacement for face-to-face contact―images really cannot replace a real-life smile or hug. According to a parenting expert, Denise Daniels，communicating through a screen makes it more difficult for children to concentrate or show kindness to others. As we know， important social skills are developed through direct contact with other people. It is these skills that enable us to develop lifelong friendships.
communicating through a screen makes it more difficult for children to concentrate or show kindness to others .
通过屏幕交流会使孩子们更难集中注意力或对他人表现出善意。
make it + adj. + for sb to do sth 使某人做某事……
“make it + adj. + for sb to do sth ”中的 it 是形式宾语，
adj. 作宾语补足语，而真正的宾语
是后面的动词不定式。
正是这些技能使我们能够发展终生的友谊。
It is these skills that enable us to develop lifelong friendships .
本句是一个强调句，强调的是主语。
强调句的基本结构：It is/was + 被强调的部分 +that/who+ 剩余部分 .
1）强调句型可强调除谓语动词和表语以外的其他句子成分，如主语、宾语、状语等。
2）当被强调部分是人时，除用 that 外，还可用 who 构成强调。
3）判断是否是强调句型的方法：把It is/was和that去掉，看句子的结构及语意是否完整，若完整，则为强调句型；若不完整，则不是。
Secondly, the Internet can make people self－centred—not thinking of anyone or anything but themselves. For example，instead of having proper conversations with their friends, some people are only concerned with their online popularity—How many “likes” did I get？How many followers do I have？—though we know that the number of“likes” or followers cannot compare to having long-term and rewarding friendships. In addition， a lot of the content posted on social media is shallow or trivial. Posts about funny cat images do not necessarily help form meaningful relationships.
重点短语：
not …but
think of
for example
instead of
be concerned with
the number of
compare to
in addition
不是…而是
考虑；想起；
例如
代替；而不是
对…关心；与…有关
…的数量
与…相比
此外
许多，大量
a number of
a lot of the content posted on social media is shallow or trivial.
过去分词作定语
Thirdly, online relationships may not be what they appear to be. Friendships are built on the basis of trust, and with online communication you can never be 100 percent sure that the people you are chatting to are being honest about who they are. Because of this, going online can be particularly dangerous for people who are easily influenced or too trusting.
online relationships may not be what they appear to be.
what 引导的表语从句
and with online communication you can never be 100 percent sure that the people you are chatting to are being honest about who they are.
通过在线交流，你永远不能百分之百的确定与你交谈的人是否以诚相待。
In my opinion, friends should focus more on face-to-face communication, and less on online communication. This is the best way to maintain healthy relationships.