问题 选择题

I don’t know if he ________ back tomorrow. If he ______ back, I’ll let you know.

A. comes; will come             B. will come; came      C. will come; comes

答案

答案:C

if翻译为是否,属于宾语从句。如果主句是一般现在时,从句根据需要选择时态,如果主句是过去时态,从句要用相应的过去时态。该句主句是一般现在时,故根据句意从句用一般将来时。在if引导的条件状语从句中,如果两个动作都没有发生,为了区别动作的前后关系,先发生的用一般现在时态,后发生的用一般将来时态,即主将从现。句意:我不知道明天是否他会回来。如果他回来了我会告诉你。故选C。

题目分析:

阅读理解

Shenzhen's fast development has made it become China's most crowded city! There are about 15 million people living on its 1991square kilometers. On each square kilometer averagely live 7500 people. It is 1080 more than that in Hong Kong, and nearly 800 more than that in Guangzhou.

Besides, Shenzhen owns 2 million local vehicles, and about 300000 vehicles from other places also run on the local roads every day. The total length of the city's road is 6041 kilometers. It means each resident only owns 0.58 meters of road!

As a result, the city is facing serious environmental and resource problems. One of the problems is water shortage. The amount of fresh water for each person of the city is only 25% of the country's average. What's more, most of the water drunk by Shenzhen people comes from other areas.

小题1:According to the passage, which of the following makes Shenzhen so crowded?

A.Shenzhen has not enough water.

B.There are too many people

C.Shenzhen is developing very fast

D.Shenzhen is too small小题2:There are _______ people living in Shenzhen now.

A.about 1991

B.about 15000000

C.about 150000

D.about 300000小题3:In Hong Kong, there are _______ people on every kilometer?

A.about 7500

B.about 1080

C.about 800

D.about 6420小题4:Which problem in Shenzhen is not mentioned in the passage?

A.Traffic accidents.

B.Water shortage.

C.Environmental problems

D.Population problem.小题5:Which is the best title for this passage?

A.Largest Population in China.

B.Biggist Problems in Shenzhen

C.Busiest Roads in Shenzhen

D.Most Crowded City in China

判断题