Reading Comprehension (10points)Questions 1 to 5 are based on the following passage.Crystals are materials that have a special pattern of atoms and molecules. Atoms and molecules are very small ‘building blocks’ that are part of every project. Although molecules are tiny, we can see them with a powerful microscope.Many common substances form crystals. Both salt and sugar form crystals. So do minerals. Minerals are non-living chemical substances. They are neither animals nor plants. Gold and silver are minerals. So too are coal, petroleum, and sand. Most minerals are found in the ground, so we have to dig them up.Crystals in minerals can produce beautiful stones. The special pattern of atoms and molecules inside the stone is reflected on the onside. Some of these stones are clear. Others have light colors, such as green, blue, or purple. Some stones can be very small. These we often wear in rings and other jewelry. Others can be very large. We use those for decorations.For centuries, people have believed that crystals have special powers. Some people say that crystals can give us energy and improve our health. In ancient Egypt, kings wore crystal stones on their heads, which they believed helped them rule wisely. Native Americans used crystals to treat all kinds of diseases. In Asia, crystal balls represented the heart of the dragon. A kind of crystals called jade represented love. Archaeologists have found many crystal objects buried in ancient graves.Today, we still use crystals to improve our health. We know that crystals store and conduct energy. We use one type of crystals inside watches, computers, and radios. Some people believe that crystals can also store and conduct the invisible energy around our bodies. They say the energy may make us feel calmer and more relaxed. This may not be true, but it is true that hospitals are using crystal-based technology today. They use crystals in machines to help find and cure illnesses. We are still learning about crystals and their many uses. Who knows? In the future, crystals might even help us communicate with people from outer space. 1. According to the passage, which is true of crystal stones?______ A) They're very beautiful. B) They're very expensive.C) They're very small. D) They're always the same color.2. Why did people bury crystal objects in graves?______ A) Because crystals were thought to be holy in ancient times.B) Because crystals give people energy and improve the health.C) Because crystals were believed to have special powers.D) Because crystals brought kings wisdom and were loved by kings.3.Why do some people think crystals have healing power?______ A) Crystals were used by Native Americans.B) Crystals have a special pattern of atoms and molecules.C) We use crystals in watches and computers.D) Crystals conduct and store energy.4.In Paragraph 5, what does the word "this” refer to?______ A) A characteristic of crystals. B) A way we use crystals.C) A fact about crystals. D) A belief about crystals.5. It can be inferred from the passage that______ .A) the author loves crystalsB) the author doubts the healing powerC) crystals are very commonD) crystals have been used for a long time