Few people would ever think of beginning a career at the age of 76, but one American most famous artist did just that. Anna Mary Robertson, better known as “Grandma Moses”, turned to painting because she could no longer take an active part in the funning of her farm. As she searched for something to do, she discovered painting--- an activity she had loved as a child.
Grandma Moses painted in primitive style, and her works are simple and basic — almost childlike in their composition. She first painted only for her own pleasure, and then began to sell her works for small sums of money.
In 1939, an art collector named Louis Caldor chanced to see several of Granma Moses’ works hanging in a store. He liked them, bought them at once, and set out to look for more. Caldor held a show to introduce the works of Grandma Moses to the art world.
Grandma Moses passed away on December 13,1961, at the age of 101, who had enjoyed a second career that lasted a quarter of a century.
【小题1】Before becoming an artist, Grandma Moses _______ .

---John, why are you so upset?
---I­­­      my cell phone all morning but it is nowhere to be found.

Recently, some concerns have been raised about the health of the world's banana plants. Many media reports have said that bananas may completely disappear in the coming ten years.
Bananas are one of the world's most important food crops. They are also the fourth most valuable export. Bananas do not grow from seeds. Instead, they grow from existing plants. Bananas are threatened by disease because all the plants on a farm are copies of each other. They all share the same genetic weaknesses.
For example, the Cavendish banana is most popular in American markets. It is an important export crop. However, some kinds of fungus (真菌) organisms easily infect the Cavendish. Black Sigatoka disease affects the leaves of Cavendish banana plants. The disease is controlled on large farms by putting chemicals on the plant's leaves. Farmers put anti-fungal chemicals on their crops up to once a week.
Another fungal disease is more serious. Panama disease attacks the roots of the banana plant. There is no chemical treatment for this disease. Infected plants must be destroyed. Panama disease has affected crops in Southeast Asia, Australia and South Africa. There is concern that it may spread to bananas grown in the Americas. This could threaten an important export product for Central and South America.
The International Network for the Improvement of Banana and Plantain, whose headquarter lies in France, supports research on bananas. The group says that more research must be done to develop improved kinds of bananas.
The group says that fungal diseases mainly affect only one kind of banana. In fact, there are five-hundred different kinds of bananas. The United Nations Food and Agriculture Organization says the Cavendish banana represents only ten percent of world production.
The UN agency says farmers should grow different kinds of bananas. This protects against diseases that affect only one kind. Experts warn that disease may cause the Cavendish banana to disappear. This has already happened to one popular banana because of its genetic weakness against disease. (words: 335)
【小题1】What does the passage mainly tell us?

C
Classified Ads（广告）
For direct classified service, call 800-0667 10 a.m.—4 p.m., Monday---Friday.
For Rent
Best on Campus
Excellent Room for girls, begins Jan. , 2, 4, or 8 months lease. Single, $ 105. $125. Double, $ 140. Call 800-1932.
Family Home, 3 bedrooms, large yard. $ 275. Call 800-4300.
For Sale
Sheepskin Coat, men’s size 42, 1year old. $ 85. After 6 p.m. call 800-5224.
Moving: Must sell. Color TV 21, $ 150; transistor radio, $ 15; recorder, $ 25. Call 800-0739.
Help Wanted
Babysitter—My home
If you could find a few hours during the day, some evenings and weekends to care for 2 school- age children, please call 800-1111.
Lost
A black bag with a pencil-box and some books left in the reading room. Will the finder please come to Class 3, Grade 1?
Found
A green jacket was left on the sports ground yesterday afternoon ( April 15th). Will the owner please ring 656-6688?
49．If you wanted to place an ad. , what number would you call?
A．800-0739      B．800-1932       C．800-5224      D．800-0667
50．“Classified Ads” may probably mean “­­­________”.
A. ads about everyone’s life
B. ads giving one some necessary information
C. ads divided into different groups according to a certain rules
D. ads for which you needn’t pay any money
51．If you want to find a part-time job, you will look at________.
A. For Rent       B. For Sale        C. Help Wanted     D. Lost

I told Sally how to get here, but perhaps I ­­­­_________ for her.

A．had to write it out         B．must have written it out

C．should have written it out  D．ought to write it out