题目内容：

    Macdonald paused a moment in front of the burning car. Flames six feet tall poured from the engine, the smell of melting rubber heavy in the air. For a few seconds, Macdonald thought about whether the car would explode, killing them both. He thought about how lucky he was to have already just survived a head-on collision between his truck and the red Chevy Cobalt now in flames. Was he ready to risk his life to save the man that he believed could have ended his?

The two-vehicle collision happened at 3:44 p.m. on Monday south of New market. Macdonald was heading to work when he says another car swerved into his lane, hitting him head-on. Soon after the collision, the other driver’s car burst into flames with him trapped inside. Macdonald, 25, came to a decision. He would try to save the man’s life. He ran to the car. The driver’s side door was blocked but the passenger’s door was pushed open by the driver, a 64-year-old man now barely conscious. Hardly noticing the heat, Macdonald opened the door and grabbed the shoulder of the driver’s jacket. He dragged the man about 15 feet before two bystanders came to help him pull the man to a safe distance. Moments later the entire car was on fire.

The police confirmed the other driver was charged with careless driving. Macdonald escaped the crash with whiplash, sore muscles and wrists from the airbag release, and a headache. The other driver received serious but non-life threatening injuries, said the police.

Macdonald is just grateful that both of them came out alive. “I’m just glad I stood up when I was needed,” said Macdonald. “You only get a couple of chances in your life to prove what you are made of.”

1.From the passage we know MacDonald is ______.

A.brave and helpful B.generous but careless

C.grateful and kind D.selfish but careful

2.The accident happened because ______.

A.there was a car burning B.the rubber was melting

C.the driver was careless D.the driver was screaming

3.Before MacDonald saved the man, he ______.

A.found his car was greatly damaged B.doubted whether he should offer help

C.was not hurt in the accident at all D.didn’t realize the danger of rescue

4.The underlined word “swerved”(Paragraph 2) means “______”.

A.turned B.knocked

C.cut D.broke