Some steps have been taken to prevent the for...

Some steps have been taken to prevent the forest ____ .

A. from destroying        B. to destroy

C. from being destroyed         D. to be destroyed

高一英语单项填空简单题查看答案及解析

Some steps have been taken to protect the forest _______.

A．from being destroyed                    B．from destroying

C．to destroy                             D．to be destroyed

高一英语单项填空简单题查看答案及解析

Every possible means _______ been taken to prevent the river _________.

高一英语单项填空简单题查看答案及解析

The government has taken some measures to prevent more trees from _____.

A．cutting down                           B．cut down.

C．being cut down                         D．been cut down

高一英语单项填空中等难度题查看答案及解析

Aspirin has long been believed to help prevent heart attacks and strokes(中风).Some studies have shown that it also has a protective effect against certain types of cancer. As a result, some people religiously pop a low-dose(低剂量的) aspirin after breakfast every day (never take one on an empty stomach). But now its status as a wonder drug has come into question, following a meta-analysis of trial evidence.

A meta-analysis reviews the results of a large number of trials and can therefore come to more certain conclusions. This latest review was published this May in The Journal of the American Medical Association.It focused on the connection between aspirin use and cardiovascular(心血管的) and bleeding events. It found that the well-known risk that aspirin can cause internal bleeding is as great as the benefits of preventing heart attacks and strokes. In some cases, the risk even outweighs the benefits.

Aspirin thins the blood, thus helping to prevent blood clots (血栓). For his reason, it is a good drug for protecting people who have already had a heart attack or stroke from having another. However, the 164,225 people in these trials had no history of cardiovascular disease. They were monitored for an average of six years, during which time they took a daily aspirin or placebo(安慰剂).Among those who took aspirin, there were about 11% fewer heart attacks and strokes but 43% higher likelihood of a major bleeding episode in the stomach, brain or intestine(肠道).

Dr Sean Zheng, a cardiology(心脏病学) researcher at King’s College London, said that taking a daily aspirin couldn’t be recommended for healthy people. But there might still be a case for people with a higher risk of a heart attack or stroke, he added. However, it would be important to consider the bleeding risk.

“Aspirin use requires discussion between the patient and their physician, with the knowledge that any small potential cardiovascular benefits are weighed up against the real risk of severe bleeding." he said.

The findings reflect the average likelihood of bleeds or heart attacks among the patients in all the trials. There will be people among them who would be better off taking aspirin and those who will be worse. It's yet another situation where we need to weigh up our individual risk and benefit--- maybe with the help of an understanding GP.

1.Which of the following is NOT a reason why some people take an aspirin every day?

A.They want to lower their risk of having a heart attack

B.They hope to protect themselves against some cancers

C.They want to ensure they don't have a sick stomach

D.They aim to make sure they won't suffer another stroke

2.What can be concluded from the recent meta-analysis?

A.That aspirin does more harm than good to the human body

B.That aspirin frequently causes internal bleeding because it thins the blood

C.That previous research into the effects of aspirin on the human body was unreliable.

D.That taking aspirin is not worth the risk or those with no history of heart tacks or strokes.

3.What should people do before taking aspirin, according to the article?

A.To have a thorough physical examination

B.To ask for others' opinions on the internet.

C.To read the findings of new studies on aspirin

D.To talk with a doctor familiar with their condition

4.The article was probably written by ________

A.the director of a hospital

B.a public health journalist

C.the CEO of a medical company

D.a representative for an insurance company

高一英语阅读理解困难题查看答案及解析

Five passengers were _____ in the traffic accident and they have all been  taken to the nearest hospital.

A. injured B. damaged  C. destroy  D. ruined

高一英语单项填空中等难度题查看答案及解析

Five passengers were _____ in the traffic accident and they have all been taken to the nearest hospital.

A. injured　　 B. damaged　　　 C. destroyed　　　 D. ruined

高一英语单项填空中等难度题查看答案及解析

________measures have already been taken to ensure enough supply of food and medicine in the earthquake-stricken areas of Qinghai Province.

A．Impressive       B．Effective     C．Creative      D. Attractive

高一英语单项填空中等难度题查看答案及解析

According to the law, anyone who destroyed the forest will not _____ what he has done.

高一英语单项填空中等难度题查看答案及解析

We must take steps to prevent the __________ world population.

高一英语单项填空简单题查看答案及解析