Nowadays, mushroom hunting is becoming more and more popular in many parts of the United States.

Experts say eating mushrooms 【小题5】(be) good for health. Mushrooms contain the mineral selenium (硒). It 【小题6】(contain) in most fruit and vegetables, too. This mineral helps the liver to work 【小题7】(proper). The mineral also helps to prevent infection in the body and may decrease the)【小题8】(grow) of cancer tumors (肿瘤). Mushrooms, 【小题9】are high in fiber may help us to lose weight. So, we eat much 【小题10】(little) because they can make us feel full for longer periods.

The Great Pyramid was built nearly 5,000 years ago for a king【小题1】 (call) Khufu. It is on the west bank of the Nile River.【小题2】(actual), all the pyramids along the Nile River are on its west bank. The ancient Egyptians thought of the rising of the sun as the beginning of life and the【小题3】(set) of the sun as the end of life. This is why their bodies【小题4】(bury) on the west of the Nile.

【小题5】 is very hard to realize how big the Great Pyramid is. It has over 2,300,000 pieces of stones, most of【小题6】weigh two and a half tons. Some even weigh fifteen tons. Without machinery, the ancient Egyptians cut, moved 【小题7】lifted these stones. Almost all the stones came【小题8】the east bank of the Nile, and they were taken across the river in boats. It took more than 100,000 people twenty years【小题9】(build) the Great Pyramid.

The Great Pyramid is over 450 feet high today. Each of the【小题10】(side) of the Pyramid is 755 feet long. It is about twenty-minute walk all the way around it.

Monkeys do not like it when others get more food 【小题1】 they do, according to a new study.

Researchers from Yale and Harvard universities found Capuchin monkeys punish monkeys 【小题2】 get more food. "This sort of, 'If I can't have it, no one can' response is because 【小题3】 psychological spite (怨恨), and it was【小题4】 (previous) thought unique to humans," said Kristin Leimgruber of Harvard University. She is a co-author of the research study. The researchers watched as some Capuchin monkeys 【小题5】 (give) more food than others. They found that monkeys getting the 【小题6】 (small) share pulled a rope to fold up a table holding the other monkey's bigger share.

Another lead researcher, Laurie Santas, 【小题7】 (explain) over email, "I think what we can conclude about humans is that some of our more embarrassing tendencies have relatively deep 【小题8】 (root)." Santos said the spiteful response was not present with another member of the ape species—chimpanzees(黑猩猩).

An earlier study, she said, showed chimpanzees would fold up the table of other chimpanzees 【小题9】 (steal) food from them. But they would not punish chimpanzees who just happened 【小题10】 (have) more food, Santos said. In other words, it was fine if another chimpanzee had more food as long as they did not steal it.