Stroke (中风)is the leading cause of disability in the United States, according to the American Stroke Association. But initial research shows that stroke survivors who remain highly optimistic have     1     (low)levels of inflammation(发炎)levels, less severe strokes and reduced physical disability after three months than those     2     (feel)less optimistic.

“There is indeed an     3     (associate)between optimism and improved health outcome of stroke patients. Our findings suggest that being optimistic may be an ideal way     4     (improve)mental health and recover after a stroke. Patients and their families should be aware that a positive environment could be     5     (benefit)to the patient. Mental health does have a positive effect     6     the recovery after a stroke,” said lead author Dr. Yun-Ju Lai in a statement.

Stroke is     7     No. 5 cause of death in the U. S. , according to the ASA. Patients with a stroke on the left side of the brain may suffer memory loss or have trouble expressing     8     (they)freely. If the disease     9     (occur)on the right side of the brain, problems with vision and a quick, inquisitive behavioral style are among the things     10     can come out.

Cholera used to be one of the most feared     1    （disease)in the world, until John Snow showed how it could be overcome. During that time, Snow subscribed to the theory that cholera     2    (cause) by germs in water. He marked the exact places     3     all those dead people had lived on the map. There were multiple deaths near a water pump. Snow suspected the water pump was to blame and then he suggested     4    (remove) the handle of the pump. Through this intervention, the disease was stopped.

The Programme for International Student Assessment (PISA) is a worldwide study of 15-year-old school pupils’ performance in mathematics, science, and reading undertaken by the OECD. A closer look at the reading tests     1     (show) the interesting fact    2     girls are outperforming boys in reading and that this is associated with girls’ greater enjoyment of reading.

One key area which has a major impact     3     reading performance, is reading for enjoyment rather than simply for study or school work purposes. Interestingly, the PISA study found that in almost all countries assessed, girls read for enjoyment more than boys. In     4     (country) such as Estonia, Latvia, Lithuania and the Netherlands, the difference between boys and girls was most significant. However, in places like Japan, boys and girls read for enjoyment at     5     almost identical level.

What’s more, an interesting area which the PISA study looked at was the types of literature that both girls and boys generally enjoy. Boys were found to enjoy reading magazines, newspapers and comic books more than girls. Girls were found to be twice as likely     6     (enjoy) works of fiction as boys.

While reading in all forms is certainly     7     (benefit) and should be encouraged, the low numbers of boys     8     (read) for enjoyment and their     9     (limit) choices when they do, is evidence of an issue that needs to be addressed. Countries need to think about ways to inspire interest for boys in reading and ensure that they     10     (expose) to a wide variety of different types of literature from a young age.

Awakening of Insects, which     1    (signal) a rise in temperature and increased rainfall, falls on March 5 and ends on March 19 this year.

Awakening of Insects refers to the fact     2     animals sleeping in winter     3    (awaken) by spring thunder and that the earth begins to come back to life. It is an     4    (extreme) important time for farmers and is widely seen as the beginning of     5    busiest time for agricultural work. During this period, most parts of China experience the quickest rise in temperatures, with the average level reaching above 10 degrees Celsius,     6     there is a marked increase in sunshine, which provides good natural     7    (condition) for farming.

Hibernating animals wake up, and so do fish. They swim from deep water to shallow water     8    search of food, mating and bearing young. It is a good time for fishing. Fishing can provide mental and physical     9    (relax), especially for people living in the city. Driving to the suburbs, bathing in the sunlight, enjoying the singing birds, fragrant flowers and     10    (wave) willows make for a perfect weekend in spring.

Have you ever felt stressed and anxious when your maths teacher asks you     1     question? Or when you are doing your maths homework? If so, you might have experienced     2     is called maths anxiety — the feeling of being extremely nervous when     3     (face) with doing basic mathematics. If you have experienced maths anxiety, you are not alone.

Mathematics     4     (be) a necessary skill that people use throughout their lives.     5     (fortunate), many people feel anxious when they have to do maths. That seed of fear may come from many sources. Cultural expectations may also be     6     (blame) — girls may be more likely to catch maths anxiety, perhaps because of stereotypes (刻板印象) that girls are naturally not very good at maths. Your genes, meanwhile, might lead you to anxiety more generally —    7     (make) you more likely to respond unwillingly to maths.

Whatever its origins, once the seed of the fear takes root, it may grow by     8     (it): the more anxious you feel, the worse you perform; the more you shy away from maths, the more you worry when you face it again. Adults with maths anxiety often have trouble     9     maths in their careers and everyday life. Adults with maths anxiety are     10     (little) likely to show interest, enter, and succeed in careers relating to science, technology, engineering, and mathematics.