1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

On 28 July 1976, the city’s one million people were asleep as usual. One of the most deadly earthquakes of the 20th century     1    (strike) the city. In less than one minute, the large city lay in ruins.     2     seemed as if the world were coming to an end. The number of people who were killed or badly     3     (injure) in the quake was more than 400,000. Nearly everything in the city    4     (destroy). But hope was not lost. Soon after the quakes, a rescue team     5     (consist) of more than 10,000 doctors and nurses came to provide medical care. Soldiers were sent to Tangshan to dig out those     6     were trapped in the quakes. Water and food were brought into the city and     7     (shelter) were built for survivors. The city began     8     (breathe) again.

    9    the help of the government and the efforts of the city’s people, Tangshan started to revive itself and get back up on its feet. In times of disaster, people must unite and stay positive to rebuild for     10    brighter future.

2 . “Calling tower,” the pilot’s voice crackled. “This is an emergency!” The radio operator in the control tower looked at his watch. It was 3:15 p.m. Lieutenant Charles Taylor and five Navy bombers (轰炸机) were in trouble. “We are off course. We cannot see land … repeat … we cannot see land.”

The control tower grew silent. The operator garbed (戴上) his microphone. “What is your position?” “We are not sure of our position,” Lieutenant Taylor replied. “We seem to be lost.” Taylor had over 2,500 hours of flight time. What was happening?

The tower called back: “Assume bearing (方位) due west.” “We don't know which way is west,” Taylor replied. “Everything is wrong…strange… We cannot be sure of any direction…Even the ocean looks odd…” The radio operator told Taylor to fly north “with the sun on the left” until he reached a Naval Air Station. Anyone could find the sun, especially a good pilot like Taylor. Soon the radio crackled again. “We have just passed over a small island,” said the pilot. “No other land in sight.” That was the last message Flight 19 sent to the radio tower. Five Navy bombers were lost. They had left the Naval Air Station for a routine training flight at 2:00 p.m., December 5, 1945. Each plane had enough fuel to fly more than a thousand miles. The weather was sunny and mild. Pilots from other flights had not seen anything strange there. So what happened? How could five Navy bombers and their crews just disappear?

The search for the five bombers covered 380,000 square miles of land and sea.

Hundreds of boats and planes searched large areas of the Atlantic, the Caribbean, the Gulf of Mexico, the mainland of Florida, and many neighboring islands. Some of the boats were aircraft carriers, destroyers, and submarines. They searched the area for weeks. Nothing was ever found. No life rafts. No wreckage (残骸). Not even an oil slick (油层). Oil from the engines should float on the surface, even if everything else had sunk.

1. The pilot knew that they were in trouble when ______.

A．The radio operator warned him.

B．He couldn't be sure of his flying route.

C．The engine failed to work.

D．The emergency light was suddenly on.

2. What made the disappearance so mysterious?
a. The control tower grew silent.
b. The bombers had a lot of fuel.
c. The weather was good.
d. No strange happening was reported by other flights.

A．(b) (c) (d)

B．(a) (b) (d)

C．(a) (c) (d)

D．(a) (b) (c)

3. What was the most unusual for the search?

A．There was no life raft.

B．There was no wreckage.

C．There was no oil slick.

D．There was no "SOS" call.

4. The result of the search for the five bombers was that _____.

A．they went for a very important mission.

B．they went to some very important places.

C．they went out of earth.

D．they went somewhere no one knew.