题目内容：

There lived in South Carolina a young woman named Eliza Lucas. Her father was governor of one of the islands of the West Indies. Miss Lucas often got seeds from her father, and then she planted them in South Carolina.

Once, her father sent her some seeds of the indigo (靛蓝) plant. She planted some of them in March, but a frost (霜冻) came and killed all her plants. However, she decided to plant some more seeds in April. These grew very well until a cutworm found them and ate her plants. Once more Miss Lucas planted some of the seeds. This time the plants grew very well. She wrote to her father about it. He sent her a man who knew how to get the indigo out of the plant.

However, the man tried not to show Miss Lucas how to make the indigo. He did not want the people in South Carolina to learn how to make it. He was afraid his own people would not get so much money for their indigo if other people made it as well. So he destroyed the indigo on purpose. But Miss Lucas watched him closely. She worked out how the indigo could be made. Some of her father’s land in South Carolina was now planted with the indigo plant.

Then Miss Lucas got married, and became Mrs. Pinckney. Her father gave her all the indigo growing on his land in South Carolina. It was all saved for seeds. Mrs Pinckney gave some of the seeds to her friends while her husband sowed others. They all grew and were made into the blue dye(染料) that we call indigo. In a few years, South Carolina was producing more than a million pounds of indigo every year. All the people were grateful to her.

1.The indigo plant died at first because of ______.

A. a cutworm    B. a frost

C. strong sunlight    D. heavy rain

2.What might be people’s attitude toward Eliza Lucas in South Carolina?

A. They were afraid of her.    B. They were doubtful of her.

C. They were thankful to her.    D. They were worried about her.

3.The man Miss Lucas’s father sent her ______.

A. was not as helpful as she expected    B. knew little about planting seeds

C. helped her a lot in making the indigo    D. made a lot of money in South Carolina

4.What’s the main idea of the text?

A. Eliza Lucas learned to plant seeds.

B. Eliza Lucas became Mrs. Pinckney.

C. Eliza Lucas got her father’s land in South Carolina

D. Eliza Lucas introduced indigo to South Carolina.