题目内容
（请给出正确答案）
A．Right
B．Wrong
C．Not mentioned
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“The heat released by burning oil and coal is the direct cause of global warming.”相关的问题
A、General anesthesia
B、Region anesthesia
C、Local anesthesia
D、MAC
How does Organisms Ward off Invaders
The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms．This interdependence is sometimes subtle，some times obvious．Perhaps the most straightforward dependence of one species on another occurs with parasites，organisms that live on or in other living things and derive nutrients directly from them．The parasitic way of life is widespread．A multitude of microorganisms(including viruses and bacteria，and an army of invertebrates or creatures lacking a spinal column(including crustaceans，insects，and many different types of worms)make their livings directly at the expense of other creatures．In the face of this onslaught，living things have evolved a variety of defense mechanisms for protecting their bodies from invasion by other organisms．
Certain fungi and even some kinds of bacteria create substances known as antibiotics into their external environment．These substances are capable of killing or inhibiting the growth of various kinds of bacteria that also occupy the area，thereby eliminating or reducing the competition for nutrients．The same principle is used in defense against invaders in other groups of organisms．For example，when attacked by disease--causing fungi or bacteria，many kinds of plants produce chemicals that help to ward off the invaders．
Members of the animal kingdom have developed a variety of defense mechanisms for dealing with parasites．Although these mechanisms vary considerably，all major groups of animals are capable of detecting and reacting to the presence of“foreign”cells．In fact，throughout the animal kingdom from sponges to certain types of wornls shellfish，and all vertebrates(creatures possessing spinal column)
there is evidence that transplants of cells or fragments of tissues into an animal are accepted only if they come from genetically compatible or closely related individuals．
The ability to distinguish between“self”and“non-self”，while present in all animals，is most efficient among vertebrates，which have developed an immune system as their defense mechanism．The immune system recognizes and takes action against foreign invaders and transplanted tissues that are treated as foreign cells．
What does the passage mainly discuss？ 查看材料
A.How parasites reproduce
B.How organisms react to invaders
C.How antibiotics work to cure disease
D.How the immune system of vertebrates developed
| 阅读理解。 |
| Humans are naturally drawn to other life forms and the worlds outside of our own. We take delight in the existence of creatures and even whole societies beyond our everyday lives. This sense of wonder is universal. Look at the efforts that scientists have made to find out whether life of some kind exists on Mars, and the popularity of fantasy (幻想) literature or movies like The Lord of the Rings. This sense of wonder draws us to each other, to the world around us, and to the world of make-believe. But have we gone so far in creating worlds of fantasy that we are missing the pleasure of other worlds that already exist all around us？ Human beings, as biologists have suggested, possess an inborn desire to connect with and understand other life forms. However, people, especially in big cities, often lead rather isolated lives. In a study of British schoolchildren, it was found that children by age eight were much more familiar with characters from television shows and video games than with common wildlife.Without modern technology, a small pond could be an amazing world filled with strange and beautiful plants, insects, birds, and animals.When we lack meaningful interaction (交互) with the world around us, and sometimes even with our families and friends, we seek to understand and communicate with things that exist only in our imaginations or on a computer screen. The world of make-believe is not necessarily bad. But when the world of fantasy becomes the only outlet (出路) for our sense of wonder, then we are really missing something. We are missing a connection with the living world. Other wonderful worlds exist all around us. But even more interesting is that if we look closely enough, we can see that these worlds, in a broad sense, are really part of our own. |
| 1. The popularity of The Lord of the Rings proves _____. |
[ ] |
| A. the close connection between man and the fantasy world B. the wonderful achievements of fantasy literature C. the fine taste of moviegoers around the world D. the general existence of the sense of curiosity |
| 2. What can we infer from the underlined sentence in Paragraph 3？ |
[ ] |
| A. People are far less familiar with the world of fantasy. B. The world around us could serve as a source of wonder. C. The world of fantasy can be mirrored by a small and lively pond. D. Modern technology prevents us from developing our sense of wonder. |
| 3. If our sense of wonder relies totally on the world of make-believe, we will _____. |
[ ] |
| A. fail to appreciate the joy in our lives B. be confused by the world of make-believe C. miss the chance to recognize the fantasy world D. be trapped by other worlds existing all around us |
| 4. What is the main purpose of the passage？ |
[ ] |
| A. To show us the hidden beauty in our world. B. To warn us not to get lost in the fantasy world. C. To argue against the misuse of the sense of wonder. D. To discuss the influence of the world of make-believe. |
There is a need for people to conform. with society, therefore preventing social-emotional support for interracial couples.Many people are afraid of getting involved because of what others will think.People are often much more open to and ready to embrace the idea when it does not affect their life.“ I support the kid down the street marrying for love, no matter what color skin the person they love has.” However, the same person is not necessarily so supportive when his child brings home someone of another race.Without the support of family, relationships feel more stressful.
Different cultural ideas also increase stress in a relationship.People tend to argue more when they agree less.They tend to agree less when their ideas about things are different.People naturally value their ideas more than they value the ideas of others.This causes each person in the relationship to constantly try to convince the other that their ideas are worthy and that they are worthy of love.A relationship with constant disagreement and a consistent effort to convince the other they deserve their love, without a social network for support, is not likely to be a long-term relationship.
Experts suggest that the way to overcome this is to have a new identity.After securing themselves in the relationship, the partners develop new relational identities that are uniquely and mutually theirs as an interracial couple.This new identity provides the support that is needed to make a relationship succeed.
11.The main idea of Paragraph 1 is that_______.
A.in a conservative society in the past, there were no interracial marriages
B.in a conservative society in the past, interracial marriages were not supported
C.the rates of interracial marriages are still infrequent in an open society
D.compared with the rates of interracial marriages in the past, the current rates are higher
12.According to the passage, which of the following is true?
A.Since people are much more open in the modern society, they support interracial marriages
B.When their child falls in love with someone of another race, parents are usually supportive
C.People do not have to obey the rules of the society
D.Many people are supportive to interracial marriages when they are not concerned.
13.The author’s attitude toward interracial marriages is _______.
A.indifferent
B.supportive
C.neutral
D.negative
14.The main idea of Paragraph 3 is that _______.
A.people always try to convince other people that they are worthy of love
B.modern people tend to value their ideas more than they value the ideas of others
C.constant disagreement will usually lead to a short-term relationship if a supportive social network is not available
D.because of different cultural ideas, people tend to argue more while they agree less
15.The author mentions in the last paragraph that a successful interracial marriage depends on _________.
A.support from society
B.a new identity
C.a new identity and social support
D.a unique and mutual relationship
A、10
B、15
C、20
D、25
A、10
B、11
C、15
D、18
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
