更多"It’s important to realize how(quick"的相关试题:
[填空题]It’S important to realize how(quick) ________ this disease can spread over the globe.
[简答题]It is important to realize that the same technology that helps us may also harm us. We can prevent this from happening by carefully controlling the new technology. As one expert says, "We must remember that it is the intelligent application of technology that will lead us to success./
[填空题]
Parkinson’s Disease
1 Parkinson’s disease affects the way you move. It happens when there is a problem with certain nerve cells in the brain. Normally, these nerve cells make an important chemical called dopamine. Dopamine sends signals to the part of your brain that controls movement. It lets your muscles move smoothly and do what you want them to do. When you have Parkinson’s, these nerve cells break down. Then you no longer have enough dopamine, and you have trouble moving the way you want to.
2 No one knows for sure what makes these nerve cells break down. But scientists are doing a lot of research to look for the answer. They are studying many possible causes, including aging and poisons in the environment. Abnormal genes seem to lead to Parkinson’s disease in some people. But so far, there is not enough proof to show that it is always inherited.
3 Tremor may be the first symptom you notice. It is one of the most common sig
[填空题](Realize) ______ that he had left an important document in the office, Harry ran back for it.
[单项选择]How does the disease mentioned in the passage spread（）
A. Through food.
B. Through air
C. Through insects.
D. Through body fluids.
[简答题]The study on how the genetic errors cause disease enables scientists to ______.
[填空题]Paragraph One
When you have to explain how something is done，you usually follow a chronological sequence and give a step-by-step description．As the steps must occur one after another, the exact order in which they are carried out is most important．
[单项选择] More about Alzheimer’s Disease
Scientists have developed skin tests that may be used in the future to identify people with Alzheimer’s disease1 and may ultimately allow physicians to predict ________ (51) is at risk of getting this neurological disorder.
The only current means of ________ (52) the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia.(痴呆)
“ Since Alois Alzheimer described the ________ (53) nearly a century ago，people have been trying to find a way to ________ (54) diagnose it in its early stages2，” said Patricia Grady，acting director3 of the National Institute of Neurological Disorders and Stroke in Bethesda, Maryland. "This discovery, if ________ (55) , could prove a big step forward in our efforts to deal with and understand the disease. ”
Alzheimer’s is the single greatest ________ (56) of mental deterioration in older people, affecting between 2. 5 million and 4 m
A. steady
B. natural
C. continuous
D. critical
