人教版高中英语必修二 Unit 3 Computers listening and speaking 教学课件 (共23张PPT)

为了方便起见
at one's convenience
在……方便的时候
for the convenience of sb. 为了某人的方便
(3)conveniently adv.
方便地
①If it's convenient for you，let's meet at 8：30 outside the school gate.
_N__o_w__th_a_t_y_o_u__w_a_n_t_t_o____
take care of himself ， his
_im__p_ro_v_e__y_o_u_r_o_r_a_l _E_n_g_li_s_h_，
now that
daughter has time to study at
you should speak English
(1)be convenient for sb./sth. 对……是方便的
It is convenient for sb.to do sth.
某人方便做某事
be convenient for/to sth. 离……很近
(2)convenience n.
[U]方便；便利[C]便利的设施
for convenience
(1)benefit n．益处 vt.使受益 vi.得益于
1)for the benefit of
为……；为……的利益
be of benefit to
对……有益
2)benefit from/by...
从……受益；得益于
benefit sb.
对某人有益
3)beneficial adj.
有利的；有益的；受益的
主语是不定 honestly as you can.

Байду номын сангаас
Listening and speaking
1. The 21st century will be the
century of Information Technology.
Before you listen, discuss in pairs what IT consists of. computers and Mp5, TV, camera, radio…
Computers
Listening
Unit 3
Learning aims
1.To strengthen the ability of listening. 2.To learn to do exercises by using data heard. 3.To develop the intrest of listening.
Disadvantages You cannot write to friends． It is not always accurate． You cannot watch a film． Sometimes it is out of date．
Homework
Finish exercises on page 42 on workbook.
Listen to Part B and fill in the chart. Part B
Which form of IT decides the skills of a sport best? Which form of IT has the most functions?
TV
Computers
L: Come off it, Dave. I think I might know more than you. D: OK. Let me test you! Here’s the first question. What’s information technology? L: Gosh, that’s easy! It’s computers, of course. D: Ah! That’s just where you’re wrong. It includes books, radio and TV as well.

Unit3 puters-语法篇____________________________________________________________________________________________________________________________________________________________________通过本节课的学习掌握现在完成时的被动语态的用法。

现在完成时的被动语态一．现在完成时的被动语态的各种句式1. 肯定式：主语＋have/has been done. 如：The first subway to cross the Yangtze River has been started.第一条横穿长江的地铁已经开工。

2. 否定式：主语＋have/has not been done. 如：When and where to have our holiday hasn't been decided yet.我们还没决定何时去何地度假。

3. 一般疑问式：Have/Has＋主语＋been done…?如：Has the construction of the underwater tunnel been finished?水下隧道的建造已完工了吗？4. 特殊疑问式：疑问词＋have/has(＋主语)＋been done…?如：What parts of Gansu Province have been hit by strong winds and heavy snowfall in the past two days?在刚过去的两天里，甘肃省的什么地方受到大风和大雪侵袭？温馨提示：(1)since then/since＋从句，in/during the past/last＋一段时间，so far, by now, up to now, recently, lately, already, yet等常用于现在完成时中。

学以致用 完成句子 (1)他整个下午都在上网和朋友聊天。 He has been on the computer all afternoon,chatting with his friends . (2)我和她闲聊了好久。 I had a long chat with her.
3.【教材原文】And so I use a nonsense name for my net identity.(Page 27)
(4)A working party has been set up to look into the problem.
(5)Looking at these photos,I can’t help looking back on my childhood.
(6)She is looked on as the leading figure on the subject.
语境领悟
(1)At last things were beginning to look up. 情况终于开始好转了。
(2)I looked up the new word in the dictionary. 我在词典里查过这个生词。
(3)I look on her as one of my closest friends. 我把她看作我最亲密的朋友之一。
我为我的网上身份胡乱用了个名字。 考点identity n.身份;个性
an identity card (ID card)身份证 identify vt. 认出;确认 identification n. 识别;鉴定;确认
语境领悟
(1)Before checking in for your flight,you must show your identity card.