Read the following article and select the best answer. Article: For thousands of years, people have used plants to make medicines. They used different parts of the plants --the roots, the leaves, the flowers, and the bark . Today, doctors have rediscovered more medicinal values of some plants. Let's look at some examples. Foxglove is a common plant. People have used it to make the heart slow down. Recently scientists have developed another drug from it. This new drug helps prevent other heart problems. In some areas, _ has been a problem. Scientists have learned that the bark of a South American tree, the cinchona, can be made into a drug to prevent malaria. For a long time, the Chinese have known that a special plant, wormwood, can also fight malaria. Scientists have been working with it to develop new drugs against malaria. In Germany, some scientists studied garlic for four years. They found that it helps prevent the build-up of plaque because too much plaque is bad for health. This very common plant continues to be studied. As we know, there are about 250,000 kinds of flowering plants in the world. Scientists have only studied little more than one percent of plants for their medicinal value. Maybe medicines for AIDS and cancer will be made from the other 99 percent. Question: How many plants are mentioned in the passage? - 3. - 4. - 5. - 6
4.

Read the following article and select the best answer. Article: Mrs. Brown had a small garden behind her house and in the spring she planted some vegetables in it. She looked after them very carefully, and when the summer came, they looked very nice. One evening Mrs. Brown looked at her vegetables and said, "Tomorrow I am going to pick them and we can eat them." But early the next morning, her son ran into the kitchen and shouted, "Mother, mother! Come quickly! Our neighbor's ducks are in the garden and they are eating our vegetables!" Mrs. Brown ran out, but it was too late. All the vegetables are finished! Mrs. Brown cried, and her neighbor was very sorry, but that was the end of the vegetables. Then a few days before Christmas, the neighbor brought Mrs. Brown a beautiful fat duck. And on it was a piece of paper with the words, "ENJOY YOUR VEGETABLES!" Question: Mrs. Brown had a _ behind her house. - shed - small garden - an apple orchard - small house
small garden

Read the following article and select the best answer. Article: For 99% of human history, people took their food from the world around them. They ate all that they could find, and then moved on. Then around 10,000 years ago, about 1% of human history, people learned to farm the land. The kind of food we eat depends on which part of the world we live in, or which part of our country we live in. For example, in the south of China they eat rice, but in the north they eat noodles. In European countries near the sea, people eat a lot of fish. In central Europe, away from the sea, people don't eat so much fish, but they eat more meat. For example, in Germany and Poland, there are hundreds of different kinds of sausages. In North America, Australia, and Europe, people eat with knives and forks. In China, people eat with chopsticks. In parts of India and the Middle East, people use their fingers to pick up food. Nowadays it is possible to transport food easily from one part of the world to another. We can eat whatever we like, at any time of the year. In Britain, bananas come from Africa; rice comes from India or the U.S.A.; strawberries come from Chile or Spain. Food is a very big business. But people in poor countries are still hungry while people in rich countries eat too much. Question: 10,000 years ago, people _ . - learned to farm the land - cooked different kinds of food - couldn't find food around them - transported food from one country to another
learned to farm the land

Read the following article and select the best answer. Article: On a hot day, it can be hard to know what to do to feel good. Playing in water is one way to feel cooler. Taking a cool bath or a shower can feel really good on a hot day. It is also important for us to drink water. If you feel thirsty, you should drink water immediately. On hot days, you can lose about 16 glasses of water in one day, so many doctors advise that you should try to drink at least that much every day. Mixing a little fruit juice into your water is a fun way to help you drink plenty of water. The food we eat also makes a difference in how we feel in the heat. Cold food, such as ice cream and drinks with some ice, can cool down our bodies. However, eating spicy food makes our bodies even warmer. The clothes we wear can help us feel cooler as well. Light-coloured, light-weight clothes feel cooler in the sun than dark, heavy clothing. Loose clothes are more comfortable in the heat than tight ones. Even though it is not healthy to run around during the hottest time of the day, that doesn't mean a hot day is not fun! You can read stories in your room. You can also paint or draw without moving your body too much. These are just some of many cool things to do on a hot day. Question: What kind of clothes can help us feel cooler on a hot day? - Loose clothes. - Dark clothes. - Tight clothes. - Heavy clothes.
Loose clothes.