The Panama Canal connects (连接) two oceans, the Atlantic and the Pacific Ocean.

The canal is very    ▲   . Big ships go through the canal. The canal makes the way much shorter. But there is a problem — not enough rain. This year, the canal has very low water. You can even see trees in the water. It is not usual. This makes it hard for ships to pass. They have to go around Africa or Egypt. It takes more time and money.

This problem will get worse because Central America will have even less rain. Experts (专家) do not know how to solve (解决) it.

1.How many oceans does the Panama Canal connect?

A Two.

B Three.

C Four.

D Five.

解析：选A。A细节理解题。根据第一段第一句“The Panama Canal connects two oceans”可知，巴拿马运河连接了两个大洋：太平洋与大西洋。故选A。

2.Which word can be put in the “ ▲ ”?

A small

B dirty

C important

D terrible

解析：选C。C推理判断题。根据划线部分后面的“Big ships go through the canal. The canal makes the way much shorter.”可知，巴拿马运河缩短了海运路程，由此可知，它十分重要。故选C。

3.What is the problem?

A More rain.

B Less money.

C Less rain.

D More food.

解析：选C。C细节理解题。根据第二段的“But there is a problem — not enough rain.”可知，问题是降水不足。故选C。

4.It is ________ for ships to pass the Panama Canal.

A easy

B hard

C fun

D bad

解析：选B。B细节理解题。根据第二段中的“This makes it hard for ships to pass.”可知，低水位限制了船只通过。故选B。

5.Do experts know how to solve the problem?

A Yes, they do.

B No, they don’t.

C Yes, they are.

D No, they aren’t.

解析：选B。B推理判断题。根据最后一段中的“Experts do not know how to solve it.”可知，专家们目前还不知道如何解决这个问题。故选B。