He hasn't much imagination. 他缺乏想像力.

He is an imaginative child. 他是一个想象力丰富的孩子。

We had the greatest difficulty imaginable. 我们遇到了可以想象到的最大困难。

This story is only imaginary. 这个故事是虚构的。

He imagined walking into the classroom and telling everyone the good news.

The book is about imaginary creatures living in another world.

Children use their imagination when they play.

He is an imaginative child who can write a lot of imaginary stories.

1. need

need既可以作情态动词，也可以作实义动词，但是它们的用法不同。

need作为情态动词的用法：

一、need表示"需要"或"必须"，通常用于否定句和疑问句。

1．You needn't do it again．你不需要再做了。

2．He needn't worry about it．这件事他无需担心。

3．Need he do this homework first？他需要先做这些作业吗？

4．Need they fill in the form？他们需要填表吗？

二、在否定句中，可以用need的否定形式＋have done。

1．We needn't have worried．其实我们不必要慌。

2．You needn't have mentioned it．你本来不必提起这件事。

3．You needn't have said that when he asked．当他问的时候，你其实不必要说。

三、needn't后的不定式间或也能用进行式或被动语态。

1．He needn't be standing in the rain．他不必要站在雨中。

2．We needn't be waiting in this place．我们不必要在这儿等。

need作为实义动词时的用法是：

人/物＋need+n.

人＋need ＋to do

物＋need ＋doing

物＋need ＋to be done

EX.:

1．We need to collect (collect) the parcel before we leave for England．去英国之前，我们需要收拾好行李。

2．We need to tell (tell) him the truth．我们需要告诉他真相。

3．My car needs repairing / to be repaired (repair)．我的汽车需要修理。

4．The flowers need watering/to be watered(water)．这些花需要浇水。

5．His leather shoes needs to be mended/mending (mend)．他的皮鞋需要修补。

6．Her room needs cleaning/to be cleaned (clean)．她的房间需要打扫。

7．It is a question that needs very careful consideration(consider)．这是一个需要慎重考虑的问题。

8．I need a watch．我需要一块手表

2. otherwise

otherwise 用作连词，意思为"否则；要不然"，相当于 or，or else 或 if not .

We'll go early, otherwise we may not get a seat.我们得早点去，要不然就没有座位了。

Seize the chance，otherwise you will regret it.抓住机会，要不然你会后悔的。