5．hold up举起；阻滞(交通等)；耽搁

　 He held up one of his fingers and showed it to the class．

　 In the rush hour the traffic is hold up．，．

4．catch sight of发现；看到

　 When the mice caught sight of the cat，the mice run away as quickly as possible．

3．catch fire着火；烧着

　 Last night a big building caught fire．

2．catch up with赶上

　 Work hard and I gin sure you are able to catch up with others in class．

1．catch／take／get hold of sth．抓住某物

　 Catch／Get／Take hold of the rope．and I'll pull you up．

5．call up打电话；征召；回想起

　 I called Tom up and told him the news．

　 In most countries men are called up at the age of 18．

　 As I grew up in a small town at the foot of a mountain, the visit to the village called up scenes of my childhood．

4.call in 请来;收回

　 Mother is badly i11．so call in a doctor at once．

3．call for需要；要求；邀约(人)；取(物)

Success called for hard work．

call for a doctor去请医生

2．call at拜访某地

I called at your office yesterday, but you were not in

1．call on拜访某人，号召

We will call on Mr．Li tomorrow．

We are called on to help those in trouble．