Never before ________ in greater need of modern public transport than it is today. （A）

A. has this city been B. this city has been

C. was this city D. this city was

1. On/Upon (doing) sth.

(1) Ask students to pay attention to the meaning of this phrase:

Upon/On +n./doing相当于as soon as sb. does sth.., the moment sb. does sth..意为一......就......

(2) Practice

Fill in the blanks without changing the meaning of the sentence

As soon as I arrived, I went to see my former teacher.

Upon/On my arrival, I went to see my former teacher.

As soon as they heard the scream, all rushed out to see what was happening.

Upon/On hearing the scream, all rushed out to see what was happening.

2. be connected to

(1) Ask students to complete the sentence according to the Chinese meaning and refer to the reading passage when necessary.

耳机和手套均与RealCine电脑系统相连接。

Both the headsets and the gloves are connected to the RealCine computer system.

(2) Deal with phrases related to connect

be connected to... 与......相连接

be connected with... 与......有牵连，有关系，有联系

connect A with/to B=join A to B A与B连接起来

(3) Practice

Complete the following sentences:

请接邮政局。

Connect me to the post-office.

警察认为他与那起谋杀案有关。

The police thought he was connected with the murder.

3. add up （PPT page 16-19，鼠标点击，逐条显示）

(1) Ask students to complete the sentence according to the Chinese meaning and refer to the reading passage when necessary.

气味通过耳机的小孔散发出来，以增添到RealCine的虚拟世界。

To add up the virtual world of RealCine, smells are given out through small openings in the headsets.

(2) Tell students about phrases related to "add":

* add to

increase 增加，扩建

The bad weather added to our difficulties.

* add sth. (to sth.)

put one thing to another 添加

If the tea is too strong, add some water (to it).