题目内容：

    Dr.Teruo Higa was born on December 28, 1941 on Okinawa and grew up there. He studied agriculture and took his doctorate from the Agricultural Research Department of Kyushu University Graduate School. He became a lecturer in 1970 and has been professor of horticulture since 1982.

Dr.Higa is famous for creating EM technology.He created EM technology in order to address the problem of excess wastes and bad farming techniques in the present-day world. EM stands for effective microorganisms. It is a multi-culture of coexisting anaerobic and aerobic microorganisms. Microorganisms are the smallest complete units of life. They can exist independent of a bigger organism. Bacteria are considered microorganisms. They are constantly at work, some helping bigger organisms,and others bringing decay and bad health. These opposing processes of constructive and destructive forces are always ongoing, creating a balance. If the balance tips towards the destructive side, the host organism grows ill. lf it tips towards the constructive side, the organism experiences good health.

These organisms can be used in farming to create a good growing environment for all kinds of crops and animals. The process involves collecting human and animal waste products such as kitchen garbage and manure. This is then sealed into a barrel along with a certain amount of EM powder. The microorganisms then turn the waste into mulch, which acts as a great source of nutrients for crops and animals. Rice paddies that are treated with EM produce harvests that are much bigger than those of conventional farms. Moreover, EM rice paddies require less tilling and weeding than other paddies.

Dr.Teruo Higa's ideas have caught on around the world. One of his biggest successes was in North Korea, where his technology was used to create a record-breaking crop yield. EM helped many crops, such as corn, Welsh onions and Chinese cabbages in North Korea. For the impoverished nation, this was a godsend.

1.Why is Dr.Teruo Higa famous?

A.He is a professor of horticulture.

B.He created EM technology.

C.He started making too much waste.

D.He is a great farmer.

2.Which of the following best describe microorganisms?

A.The smallest complete units of life.

B.Something that causes bad health.

C.Necessary for good health.

D.An unimportant part of farming.

3.What do microorganisms do in the EM process?

A.They destroy waste products.

B.They cause ill health.

C.They turn waste into a useful mulch.

D.They decrease the size of harvests.

4.What happened into North Korea?

A.It was a rich country.

B.They decided not to use EM technology.

C.Dr.Higa was not invited to the country.

D.EM technology led to a record-breaking harvest.

5.What does the underlined word"impoverished"mean in English?

A.Rich. B.Poor.

C.Far away D.Large.