bamboo is one of the nature’s most surprising plants. Many people call this plant a tree, but it is a kind of grass.
Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist recorded one bamboo plant that grew almost 1.5 meters in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1,000 kinds of bamboo that grow around the world on both mountains and plains.
Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimeters wide while others may grow to more than 30 centimeters across. This plant also comes in different colors, from yellow to black to green.
Many Asian countries have been using bamboo for hundreds of years. They often use bamboo for building new buildings. As a matter of fact, the cables that hold up the hanging bridge across the Min River in Sichuan are made of bamboo. The bridge has been in use for more than 1,000 years, and is still holding strong.
In Africa, engineers are teaching poor farmers how to find water using bamboo. These African countries need cheap ways to find water because they have no money, and their fields often die from no rain and no water. It seems that bamboo is one of the best things they can use. Bamboo pipes and drills can help to make the poor thirsty fields to be watered.
1.How is bamboo like grass?
A．It is thin and easy to cut. B．It grows everywhere.
C．It is short and green. D． It grows quickly after it's cut short.
2.The sentence “while others may grow to more than 30 centimeters across.” means “Some other bamboo plants may grow to be very _______.”
A．short B．strong C．thick D．tall
3.From the text we know ______.
A．most people call bamboo plant trees
B．the bamboo plant changes its colors when it grows
C．a bamboo plant may grow 4.5 meters in three days
D．a bridge held by bamboo cable was built thousands of years ago
4.Why did the engineers teach the poor farmers in Africa to make use of bamboo?
A．Because it is used by Asians. B．Because it is colorful.
C．Because it drills fast. D． Because it is cheap.