题目内容
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[主观题]
How to identify a credible source？
A、Peer-reviewed articles
B、The most recent information
C、Familiarizing yourself with the author.
D、All of them
提问人：网友helsun1984
发布时间：2022-01-07
题目内容
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更多“How to identify a credible sou…”相关的问题
第1题
On the template strand that has a 3’ end behind the moving fork, DNA polymerase can synthesize DNA continuously.
第2题
We all know that DNA has the ability to identify individuals but, because it is inherited, there are also regions of the DNA strand which can relate an individual to his or her family (immediate and extended), tribal group and even an entire population. Molecular Genealogy (宗谱学) can use this unique identification provided by the genetic markers to link people together into family trees. Pedigrees (家谱) based on such genetic markers can mean a breakthrough for family trees where information is incomplete or missing due to adoption, illegitimacy or lack of records. There are many communities and populations which have lost precious records due to tragic events such as the fire in the Irish courts during Civil War in 1921 or American slaves for whom many records were never kept in the first place.
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The main objective of the Molecular Genealogy Research Group is to build a database containing over 100,000 DNA samples from individuals all over the world. These individuals will have provided a pedigree chart of at least four generations and a small blood sample. Once the database has enough samples to represent the world genetic make-up, it will eventually help in solving many issues regarding genealogies that could not be done by relying only on traditional written records. Theoretically, any individual will someday be able to trace his or her family origins through this database.
In the meantime, as the database is being created, molecular genealogy can already verify possible or suspected relationships between individuals. “For example, if two men sharing the same last name believe that they are related, but no written record proves this relationship, we can verify this possibility by collecting a sample of DNA from both and looking for common markers (in this case we can look primarily at the Y chromosome(染色体)),” explains Ugo A．Perego, a member of the BYU Molecular Genealogy research team.
People in a large area may possess the same DNA thread because______.
A．DNA is characteristic of a region
B．they are beyond doubt of common ancestry
C．DNA strand has the ability to identify individuals
D．their unique identification can be provided via DNA
第3题
阅读理解。????Alzheimer's disease affects millions ...
| 阅读理解。 |
| Alzheimer's disease affects millions of people around the world. American researchers say the disease will affect more than one hundred million people worldwide by the year twenty fifty. That would be four times the current (现在的) number. Researchers and doctors have been studying Alzheimer's patients for a century. Yet the cause and cure for the mental (智力的) sickness are still unknown. However, some researchers have made important steps towards understandingit. Several early signs of the disease involve (涉及) memory and thought processes. At first, patients have trouble remembering little things. Later, they have trouble remembering more important things, such as the names of their children. There are also some physical tests that might show who is at risk of developing Alzheimer's disease. The tests look for proteins (蛋白质) in brain and spinal cord fluid (脊髓). The proteins appear to be found only in people with the disease. The protein tests correctly identify (确定) the presence of the disease in about ninety percent of patients. Now, a much simpler physical test to predict Alzheimer's risk has been developed. Researchers found that trouble with the sense of smell can be one of the first signs of Alzheimer's disease. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon (桂皮), black pepper, chocolate, paint thinner (涂料稀释剂), and smoke. The study continued for five years. During this period, the same people were asked to take several tests measuring their memory and thought abilities. Fifty percent of those who could not identify at least four of the smells in the first test had trouble with their memory and thinking in the next five years. Another study has shown a possible way to reduce a person's chances of developing Alzheimer's disease in old age. Researchers in Chicago found that people who use their brains more often are less likely to develop Alzheimer's disease. Those who read a newspaper, or play chess or word games are about three times less likely to develop the condition. Researchers say they still do not know what causes Alzheimer's disease. But they say these findings might help prevent the disease in the future. |
| 1. What's the main idea of the passage？ |
[ ] |
| A. Some early signs of the Alzheimer's disease. B. Some physical tests about Alzheimer's disease. C. The research about Alzheimer's disease. D. The patients of Alzheimer's disease. |
| 2. How many Alzheimer's patients now around the world？ |
[ ] |
| A. 100 million B. 25 million C. 400 million D. 20million |
| 3. What is not the early sign of the Alzheimer's disease according to the passage？ |
[ ] |
| A. Poor memory. B. Proteins exist in the brain. C. Trouble with the sense of smell. D. Less use of the brain. |
| 4. What does the underlined word "it" in paragraph 1 refer to？ |
[ ] |
| A. Alzheimer's disease. B. Alzheimer's patients. C. The cause and cure. D. The research. |
| 5. According to the passage, we can learn that _____. |
[ ] |
| A. there are no proteins in the brains of the people with no Alzheimer's disease B. the people who often use their brains will not get Alzheimer's disease C. researchers and doctors have found ways to cure Alzheimer's disease D. the people who have the trouble with the sense of smell will certainly suffer from Alzheimer's disease |
第4题
What is the difference between primary sources and second sources? a: Primary sources relate to publicly available data, like historical documents (e.g., a transcript of oral history, interview data), raw data from an experiment, or demographic records. b: Second sources relate to publicly available data, like historical documents (e.g., a transcript of oral history, interview data), raw data from an experiment, or demographic records. c: Secondary sources have been produced for public consumption in the form of a journal article or a chapter in an edited book. d：Primary sources have been produced for public consumption in the form of a journal article or a chapter in an edited book.
A、ab
B、ac
C、cd
D、bd
第5题
Which one is not the thing to avoid?
A、Using any information that has an obvious bias.
B、Using material that is out of date.
C、Social media.
D、Using a first-hand quote.
第6题
Which one is not an effective reading method?
A、Read intensively to make notes on key points
B、Scan text for the information you need (e.g., names)
C、Survey text features (e.g., abstract, contents, index)
D、Read extensively to grasp the main idea
第7题
Which one is not consistent with what we have introduced in this class?
A、References list shows all the sources used by the author and referred to in the text. It should give you some suggestions for future reading.
B、Introduction or preface is where the author often explains his/ her reasons for writing, and also how the text is organized.
C、Abstract tells you what proportion of the text is devoted to the topic you are researching.
D、Bibliography is the sources the author has used but not specifically referred to.
第8题
How to assess internet sources critically?
A、Is this a reputable website, for example with ac. (= academic) in the URL
B、Is the name of the author given and is he/she well-known in the field
C、Is the language of the text in a suitable academic style
D、All of them
第9题
Which one is not correct according to this lesson?
A、Examines common text features is important for effective reading.
B、Critical thinking is less important than examining common text features.
C、Learning to distinguish facts and opinions is good for effective reading.
D、Students are usually paying little attention to reading skills.
第10题
Which one is called critical thinking?
A、Does the argument of the writer develop logically, step by step?
B、Are the examples given helpful? Would other examples be better?
C、Does the author have any bias?
D、All of them.
