题目内容
【题目】 Where is Love? How can we find Love? Once a little boy wanted to meet Love. He knew it was a long trip to where Love lived, so he got his things ready with some pizzas and drinks and started off. When he passed three streets, he saw an old woman sitting in the park and watching some birds. She looked very hungry. The boy gave her a pizza. She took it and smiled at him. The smile was so beautiful that he wanted to see it again, so he gave her a Coke. She smiled once again. The boy was very happy.
They sat there all the afternoon, eating and smiling, but they said nothing. When it grew dark, the boy decided to leave. But before he had gone more than a few steps, he turned around, ran back to the old woman and gave her a hug. The woman gave him her biggest smile ever.
When the boy opened the door of his house, his mother was surprised by the look of joy on his face and asked what had made him so happy. "I had lunch with Love. She has got the most beautiful smile in the world. "At the same time, the old woman's son was also surprised at his mother's pleasure and asked why.
"I ate a pizza in the park with Love," she said, "and he is much younger than I expected. "
If the world is full of love, we can enjoy a better life.
【1】The boy started off with some pizzas and drinks because ________.
A.he wanted to travelB.he hadn't have breakfast
C.a trip to where Love lived was longD.he liked eating
【2】The old woman gave the little boy the biggest smile ________.
A.before it grew darkB.after the little boy went home
C.after the little boy hugged herD.when she was drinking Coke
【3】The old woman smiled at the boy ________times.
A.oneB.twoC.threeD.four
【4】The boy's mother was surprised to see her son was very ________when the door opened.
A.sadB.angryC.unhappyD.pleased
【5】Which of the following is true?
A.The little boy failed to find Love.B.If the world is full of love, we can enjoy a better life.
C.The old woman liked pizza.D.The little boy decided never to go home.
【答案】
【1】C
【2】C
【3】C
【4】D
【5】B
【解析】
本文是一篇记叙文,讲述了一个小男孩寻找“爱”的过程,而爱其实一直就在我们身边。
【1】
细节理解题。根据第一段“Once a little boy wanted to meet Love. He knew it was a long trip to where Love lived, so he got his things ready with some pizzas and drinks and started off”可知,小男孩想要寻找“爱”,但是这是一个漫长的旅程,所以他为此准备了披萨和饮料。故选C。
【2】
细节理解题。根据第二段“he turned around, ran back to the old woman and gave her a hug. The woman gave him her biggest smile ever”可知,男孩儿跑回老太太身边并给了她一个拥抱,老太太付之以最大的微笑。故选C。
【3】
细节理解题。根据“She took it and smiled at him…She smiled once again…The woman gave him her biggest smile ever”可知,老太太对男孩儿笑了三次。故选C。
【4】
细节理解题。根据第三段“When the boy opened the door of his house, his mother was surprised by the look of joy on his face”可知,当男孩打开他家的门时,他妈妈惊讶于他脸上的喜悦。故选D。
【5】
细节理解题。A选项:小男孩儿没有找到爱。根据“I had lunch with Love”可知,选项错误;B选项:如果世界充满了爱,我们就能享受更好的生活。根据“If the world is full of love, we can enjoy a better life”可知,选项正确;C选项:老太太喜欢披萨。文中并没有提到这一点,选项错误;D选项:小男孩儿决定不再回家。根据“When the boy opened the door of his house”可知,选项错误。故选B。
【题目】 Do you know viruses (病毒) and bacteria (细菌)? Both of them are very small, we can't see them with our eyes, and many people know nothing about them, In fact, there are a number of differences between viruses and bacteria. Bacterium, the singular form of the word bacteria, is a one-celled (单细胞) living thing, with complete sets of both RNA and DNA genetic codes (遗传密码). For viruses, some are sections of RNA, and the others are sections of DNA. So, bacterium is at least a hundred times larger than a typical virus.
One main difference between viruses and bacteria is the method of reproduction. A bacterium is a completely independent and self-reproducing unit. When the time is right, bacterium will divide its DNA and RNA genetic material in two. This is how bacteria live in almost every environment on Earth, including non-living things like rocks or plastic.
A virus, on the other hand, cannot reproduce without a living host. A virus may lie for thousands of years before finally coming into a suitable host. Once it enters the body of a host, a virus will get in the ling cell. Once inside a living cell, a virus takes the place of the living cell's DNA or RNA genetic instructions with its own. Those instructions are usually to make as many copies of the virus as possible.
Ninety-nine percent of all known bacteria are considered useful to humans, or at least have no bad influence. But most viruses, on the other hand, serve no good purpose. Their only purpose is to create more viruses in order to make themselves continue to live.
Bacteria are alive, which means they can be killed by some form of chemical things. Antibiotics (抗生素) can kill bacteria. Viruses, by comparison, are not considered living things. They cannot be 'killed' in the same way as antibiotics kill bacteria. In fact, any medicine is useless for virus' infections. The disease must run its course until the body can make a successful protection on its own.
Viruses and Bacteria | |||
Similarity | Both are too small 【1】 with our eyes. | ||
Differences | Viruses | Bacteria | |
What they're like | ● They are not living things. | ● They are living things. | |
● A virus is a section of 【2】 RNA 【3】 DNA. | ● A bacterium has complete sets of both RNA and DNA genetic codes. | ||
● A virus is much smaller than a bacterium. | |||
How they reproduce | A virus can not copy without a living host | A bacterium can reproduce 【4】 in almost every environment on Earth. | |
How they influence humans | Most of them do 【5】humans. | Most of them are considered useful to humans, or at least have no bad influence. | |
【6】for viruses and bacteria | We can use antibiotics to kill bacteria while for viruses it only depends on if our body can make a successful protection on its own. | ||