题目内容：

    Early February, I was flying up to Ohio. Well prepared, I had everything in my favour—fuel for five hours, charts in order, my flight plan on my lap, and a beautiful clear sky.

I was wrong.

I had heard about Alberta Clippers coming out of Canada. I knew all about them―how an entire air mass was streaming along at over sixty miles an hour.

That morning, the Weather Briefer informed me that an Alberta Clipper was going over Chicago about the time I got to the airport. Chicago was some 400 miles from my destination—not a factor, or so I thought. That was the first hint I missed.

The controller called and asked if I wanted to adjust my flight plan. I did the check and everything was in the green. So I told him no. Twenty minutes later the controller called again asking whether I wanted to adjust my flight plan. I checked everything. All was fine. I ignored that hint. I was fooled by the smooth air and limited experience with a rapidly moving air mass that was not changing violently. The Alberta Clipper was clipping along.

The first blast of turbulence（气流）struck my plane. I got slammed into the roof, and then slammed sideways hitting the window with such force up my nose that I started bleeding.

After a 2-hour flight of 100 miles, I realized fuel was now an issue. So was landing. I called Flight Following. We figured out the airport I could land.

The engine stopped. So did my heart. There is no quiet as quietly stunning as this one at such an altitude. I had run out of fuel in the left tank, and only a little in my right tank. The engine quit for a second time. I declared an emergency. I was told that I might get another few minutes of fuel if I gently banked the airplane. Luckily, it worked. Then, the engine quit for the last time. I was a glider now. I made a long lazy spiral descent. Down I went. I stopped at the very end of the runway.

I made so many mistakes, missed so many clues, and showed my ignorance so much that I beat myself up over and over again in my mind. I learned textbook descriptions of Alberta Clippers and real-life experience with one are totally different. I will never forget the sound of that silence.

I flew home the next day. Older. Wiser. Humbler. Lucky.

1.We can know from the passage that Alberta Clippers ______.

A.can bring snowstorms

B.are quick-moving air masses

C.are violently changing air pressure

D.can lead to a sudden temperature drop

2.What mainly led to the author's missing all the hints?

A.His lack of flying experience.

B.His poor preparation for the journey.

C.His misjudgement about the air mass.

D.His overconfidence in his piloting skills.

3.Which is the right order of the events?

a. I declared an emergency.

b. My airplane was running out of fuel.

c. I insisted on carrying on my flight plan.

d. I was thrown to the roof by the violent air mass.

e. I slightly banked my airplane and made a landing.

A.dcbea B.dceba

C.cdabe D.cdbae

4.The passage describes ______.

A.a rewarding training B.a narrow escape

C.a painful exploration D.a serious accident