in the meanwhile 在此期间（=in the meantime）

注意：meanwhile意为"同时，在此期间"，作为副词和名词，表示在某动作或情况发生或存在期间将可能发生另一件事。它不用于说明人或事物的另一面。

►即学即练

单项填空

1) Mother went shopping , I cleaned the house. A. while B. when C. and when D. meanwhile

2) The incomes of skilled workers went up.________，unskilled workers saw their earnings fall.

　　A．Moreover B．Therefore C．Meanwhile D．Otherwise

Key: 1. D 2.C

3. 3. inform v 告知；通知

　例句：I informed his wife of his safe arrival. =I informed his wife that he had safely arrived.我通知他太太他平安到达。

►词语链接

inform sb. of sth. 通知某人某事

inform sb. that 告知某人

keep sb. informed of 随时通知某人

►即学即练

The head teacher __________ _________(告知我们) that we would have a class meeting.

Remember to keep us ___________ ____________(告知我们) how the project is going on.

Key: 1.informed us 2. informed of

4. case n 情况；病例；案例

例句：He thought he had already solved the problem, but that was not the case.

　　　　他以为已经解决了问题，但情况并非如此。

►词语链接

in case 连词 以防万一；免得

in case of 万一；

in no case 绝不（放于句首，句子部分倒装）

in this/ that case 即使这样/那样

in any case 无论如何

提示：case 在句中作先行词时，常用关系副词 where; 常见句型 As is often the case 正如常有的情况

►即学即练

1） 万一着火，请按这个按钮。

_________ _________ _________ fire, please press the button.

2） 我们绝不在考试中作弊。

________ _______ _________ should we cheat in exams.

3）要是那样的话，我们就不去郊游了。

________ _______ _________, we won't go for a picnic.

4)我父母经常在家里预备写蜡烛，以备停电。

My parents usually keep candles at home ______ _______ there is a power failure.

单项选择

We will discuss a number of cases _______patents have much difficulty in communicating with their children.