The rainforest will _____________ (消失) one day if humans continue to do harm to the environment.
A____________（世纪）is one hundred years.
Lucy looked through her test paper ________（仔细）in order not to make mistakes.
The new couple like the house very much but they can't ________（负担得起）it.
More than 100 people have now died from the new coronavirus (冠状病毒)-COVID-19. The number of people infected in mainland China increased sharply in one day-from 2, 700 Monday to more than 4,500 Tuesday. The increase comes even as China takes strong measures to stop the spread of the disease.
Coronaviruses are a large family of viruses that cause disease in mammals (哺乳动物) and birds. Coronaviruses can cause illnesses from the common cold to much more serious illnesses like Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Experts still do not have a clear picture of the severity of the new coronavirus.
Officials are calling the disease a "novel" or new coronavirus because it has not been found before in humans. The new virus is thought to have spread to humans from wild animals sold at a market in Wuhan, in central China's Hubei Province. But it is now spreading between people. Chinese officials say the disease is able to spread from one person to another even before any actual signs appear. This makes it especially hard to stop.
Signs of the disease among infected patients have included fever, cough, shortness of breath and general breathing difficulties. In more serious cases, the virus can cause pneumonia（肺炎）. Some people report few or no signs, while others have gotten very sick or even died. Experts say that signs of the virus may appear between two and fourteen days after being near someone who is infected.
There is no special treatment for the new coronavirus. However, many of its effects are treatable, as long as a patient is in fair health. Because the virus is so new among humans, there is no available vaccine(疫苗) to protect against the disease. But the World Health Organization advises people to avoid close contact with anyone showing signs of a breathing sickness, such as coughing or sneezing. It also says people should wash their hands often and use safe food practices.
(Written on 29th January,2020)
1.Which is not caused by viruses according to the passage?
A.Colds. B.Headaches. C.MERS. D.SARS.
2.Experts call COVID-19 a new coronavirus because ________·
A.it hasn't been found before by doctors
B.it has never been found in humans before
C.it has never spread to humans before
D.it hasn't been known well by humans
3.What does the fourth paragraph tell us?
A.The great danger of the new coronavirus.
B.The cause for the spreading of the new coronavirus.
C.The reason why the new coronavirus is difficult to stop.
D.The signs of people who infected with the new coronavirus.
4.We can infer（推断）from the passage that ________.
A.the patients infected with the new coronavirus can be treated well if they have no other diseases
B.because the virus is so new among humans, there is no available vaccine to protect against the disease
C.there is no way to avoid the new coronavirus because it is difficult to identify
D.the new coronavirus causes fever, cough, shortness of breath and general breathing difficulties in every patient infected
5.What is the best title of the passage?
A.The discovery of a new coronavirus
B.How to avoid the new coronavirus
C.A new coronavirus-COVID-19
D.The big coronavirus family.
New research shows the number of suicide（自杀）is increasing among young people. Between 2007 and 2015, the number of U. S. teenagers who visited hospitals because of suicidal thoughts or ideas doubled. In 2007, the number of visits was 580,000; by 2015, that number had increased to 1.12 million, reports CNN.
The fact that so many young people fight with depression （沮丧） and suicidal thoughts every day is shocking. But new research may allow us to look into the differences between the development of depression in boys and girls.
Researchers found that there are big differences between the development of depression for boys and girls. Girls seemed to develop depression at a faster speed and hit the highest levels of depression at an earlier age. For boys, the most rapid increase of depression happened at age 16. 4, while girls' biggest increase came at 13. 5 years.
There's no exact answer for these differences. But expert Arash Emamzadeh says that a general increase in depression during teenage time is possibly "because teenagers face many changes during this period such as puberty(青春期) , school transition(过渡) and forming friendships. "
As for girls experiencing depression at an earlier age, Emamzadeh writes, "One possible explanation for this difference is the earlier puberty in girls compared with boys. "
Finding a solution is not easy. However, if schools, parents and teenagers make efforts at the same time, things will certainly be better. Students in schools need to be helped to deal with problems both in their daily lives and study. Less stress is supposed to be put on teenagers' shoulders by parents. Proper communication between teenagers and parents is necessary. Teenagers should keep optimistic and look on the bright side of life.
1.How many teenagers with suicidal thoughts are there in the U. S. by 2015?
A.1.120,000. B.1, 700,000. C.580,000. D.540,000.
2.What is the Chinese meaning of the underlined word "optimistic" in the last paragraph?
A.健康的 B.沮丧的 C.乐观的 D.理性的
3.Which of the following is NOT TRUE?
A.There are big differences in the development of depression in boys and girls.
B.Boys reach the highest level of depression 2. 9 years earlier than girls.
C.Teenagers' depression increases probably because they face many challenges.
D.The reasons why there are differences in depression between boys and girls are not clear.
4.The writer's opinion to deal with teenage depression is that ____________.
A.nothing should be done because the problem will disappear itself
B.more subjects need to be there in school so that students have no time to think about their lives and friendships
C.teenagers should try to solve the problems by themselves in order to improve themselves
D.schools and families should work together to make things better and better
5.The purpose of the passage is ________________.
A.to tell people the teenage suicide and the possible solutions
B.to tell people the difference of the depression in boys and girls
C.to tell people why girls develop depression earlier and faster than boys
D.to tell people the suicide in teenagers is not that serious
