A.All; have | B.All that; have | C.All; has | D.All that; has |
Last Sunday morning, when I was having a walk in the park near my home, I came across a crew make a new film with one of my favorite actor. I didn’t have my camera with me at that time, but I rushed back home to get. Unfortunately, by the time I got back, they have finished the scene and the actor couldn’t be seen everywhere. I was really disappointing and about to leave while he walked out of a building. He was right there in the front of me! I couldn’t believe my luck — not only did I had my photo taken with him, but he signed his name on my shirt!
A.to repair; to take | B.repairing; to take |
C.to be repaired; taking | D.repairing; taking |
A.are built | B.are building |
C.have built | D.are being built |
The Water Splashing Festival of the Dai ethnic minority (少数民族),
During the festival which lasts for three or four days, people
The Water Splashing Festival
1. 简单的自我介绍(如性格,学习成果,特长等);
2. 说明进入大学后的努力方向及设想等。
注意:1. 词数:120左右; 2. 可适当增加细节,以使行文连贯。
Dear Sir or Madam,
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
7 . Is there a way to turn back the aging process in people? For centuries, people have been looking for a “fountain of youth.” The idea is that if you find a magical fountain, and drink its water, you will not age.
Researchers in New York did not find an actual fountain of youth, but they may have found a way to turn back the aging process. It appears that the answer may be called the hypothalamus, which is part of your brain. It controls important body activities, including growth, the way we process food and so on. Researchers found that hypothalamus neural stem cells (干细胞) also influence how fast aging takes place.
Dongsheng Cai was the leading researcher in a study on aging in mice. He and his team reported their findings. “when the hypothalamus starts aging, particularly the loss of hypothalamus stem cells, so does the body.” he said.
Using this information, the researchers began trying to activate (激活) the hypothalamus in laboratory mice. The results show that the treatment slowed aging in the animals. “When we injected the hypothalamus stem cells to the middle-aged mice, the mice aged slowly and they could also live longer.”
But these results were just from studying mice in a laboratory. If the mice can live longer, does that mean people could have longer lives? The next step is to see if the anti-aging effects also work in human beings. If so, they say the findings could lead to new ways to help doctors identify and treat age-related health problems.
1. Why does the author mention the “fountain of youth” in the first paragraph?A.To explain what the “fountain of youth” is. |
B.To introduce the hypothalamus. |
C.To show how to find the “fountain of youth”. |
D.To help people find the “fountain of youth”. |
A.The brain. | B.The aging process. |
C.Hypothalamus. | D.The stem cell |
A.They have found a way to turn back the aging process. |
B.The brain controls growth, reproduction and the way we process food. |
C.The decrease of hypothalamus stem cells can lead to aging. |
D.The finding has been applied to human beings. |
A.The Secret of Youth |
B.A New Discovery about Aging |
C.The Ways of Slowing Down Aging |
D.Hypothalamus — the Fountain of Youth |
A.will pass | B.would pass | C.pass | D.must pass |
A.is made | B.is to be made | C.be made | D.had been made |
A.didn’t smoke; wouldn’t lose | B.hadn’t smoked; wouldn’t have lost |
C.didn’t smoke; wouldn’t have lost | D.hadn’t smoked; wouldn’t lose |