题目内容：

    It started during a yoga class. She felt a strange pull on her neck, a feeling completely foreign to her. Her friend suggested she, rush to the emergency room. It turned out that she was having a heart attack.

She didn’t share similar symptoms with someone who was likely to have a heart attack. She exercised, watched her plate and did not smoke. But on reviewing her medical history, I found that her cholesterol （胆固醇）level was sky-high. She had been prescribed a cholesterol-lowering statin medication, but she never picked up the prescription because of the scary things she had read about statins on the Internet. She was the victim of fake medical news.

While misinformation has been the object of great attention in politics, medical misinformation might lead to an increase in deaths. As is true with fake news in general, medical lies tend to spread further than truths on the Internet----- and they have very real bad consequences.

False medical information can also lead to patients experiencing greater side effects through the “nocebo effect （无安慰剂效应）Sometimes patients benefit from an intervention （干预）simply because they believe they will — that’s the placebo effect （安慰剂效应）.The nocebo effect is the opposite. Patients can experience harmful effects because they anticipate them. This is very true of statins. In blinded trials, patients who get statins are no more likely to report feeling muscle aches than patients who get a placebo. Yet, in clinical practice, according to one study, almost a fifth of patients taking statins report side effects, leading many to discontinue the drugs.

What else is on the fake news hit list? As always, vaccines （疫苗）.False concerns that the vaccine may cause side effects have greatly reduced coverage rates.

Cancer is another big target for pushers of medical misinformation — many of whom refuse alternative therapies. “Though most people think cancer tumors are bad, they’re actually the way your body attempts to contain the harmful cells,”, one fake news story reads. It warns that prescription medications lead to the uncontrolled cell mutations （变异）.

Silicon Valley needs to face this problem. I am not a free-speech lawyer, but when human health is at risk, perhaps search engines, social media platforms and websites should be held responsible for promoting or hosting fake information. Meanwhile, journalists should do a better job of spreading accurate information.

1.We can learn from Paragraph 2 that ________.

A.the woman paid little attention to her daily diets

B.the woman didn’t take the prescription due to fake medical news

C.the symptom of the heart attack was familiar to the woman

D.the unhealthy lifestyle might lead to the woman’s heart attack

2.According to the passage, the placebo effect functions because patients_______.

A.receive proper treatment B.discontinue the harmful drugs

C.believe the benefits of an intervention D.are relieved from more side effects

3.What does the author mean by claiming that “I am not a free-speech lawyer” in the last paragraph?

A.He is a lawyer not easy to speak to.

B.He is very cautious when speaking something.

C.He is available to give a speech on the law.

D.He is good at speaking because of his job.

4.The main purpose of the passage is to_______.

A.remind us to take medication as prescribed

B.teach us how to distinguish fake medical news on the Internet

C.encourage journalists to report more positive news events

D.warn us against fake medical news on the Internet