【练习】选择imaginative/imaginable或imaginary并用其适当的形式填空

1) Although the main characters in the novel are so true to life, they are _______.

2) It's _______ for such an _______ writer to create _______ stories.

3) This is the only solution _________.

4) The famous poem was from an ______ poet.

Keys: 1) imaginary 2) imaginable; imaginative ; imaginary 3) imaginable 4) imaginative 2). dry up/dry out 【解释】

dry up使完全变干；（河流，湖泊等）干涸

dry out变干，干透(不及物短语) 【练习】选择dry up或dry out，并用其适当的形式填空

1) The farmers pumped water to their fields to stop the soil ________.

2) The pool ________ in the late autumn.

3) The villagers had to wait for the sun to _________ the dirt road.

4) Don't leave the vegetable on the table, or it will ________.

Keys: 1) drying out 2) dries up 3) dry up 4)dry out 3) otherwise/therefore/however 【解释】

otherwise否则；不然

therefore adv.因此, 所以

however无论如何, 可是 【练习】选择otherwise/therefore或however并用其适当的形式填空

1) He didn't work hard at English_______ he wouldn't find it difficult to learn now．

2) We do not have enough money．_________we cannot afford to buy the new car．

3) The first part was easy；the second，________，took hours．

4) He is noisy， but ________a nice boy．

5) We were going to play football，but it was so hot that we decided to do_____________．

Keys: 1)otherwise 2)Therefore 3)however 4) otherwise 5)otherwise III 词性变化 （旨在提供语法填空所需材料）

1. operate v. 操作, 动手术 operator n. 操作员, (电话)接线员, operation n. 运转, 操作, 实施 2. donate v. 捐赠, 赠予 donation n. 捐赠品, 捐款, 贡献 3. arrange v. 安排, 排列, arrangement n. 排列, 安排 4. adjust v. 调整, 调节 adjustable adj.可调整的 adjustment n. 调整, 调节, 调节器 5.participate v. 参与,分享, participant n. 参与者, participation n. 分享, 参与 【练习】根据句子结构，用括号内所提供词的适当形式填空

1) They encouraged the _______ to _______ in the singing performance after the contest..(participate)

2) The doctor are ________ on an ______ of a factory who got injured when _______a machine, and the ________ is said to last over ten hours.(operate)

3) The seats in the plane are ________ , and you can ________ them to a certain angle. The ______ is not difficult to make. (adjust)

4) The drinks were ________ to them by coca cola company and they received _______from other companies as well. (donate)

5) Our department will be in charge of _______the conference. Would you please give us some suggestions on the _______ for it? (arrange)

keys:1) participants; participate 2) operating; operator; operating ; operation 3) adjustable; adjust; adjustment 4) donated; donation 5) arranging; arrangement