When it comes to gossip(流言蜚语), learn to keep your mouth shut ________ you'll avoid trouble.
A．or B．and C．for D．but
Only when we have strong confidence, courage and strength, ________ overcome all the difficulties.
A．that we B．we can C．we would D．can we
We should ________ the best person for the job, and I feel Jane is a remarkable candidate.
A．approve B．appoint C．apply D．approach
Similarly, active places exist around the globe, with some even ________ a new kind of tourists.
A．attracted B．to attract C．attract D．attracting
We know that ________ better future is at ________ hand if all hands come together and pull together.
A．a; the B．the; the
C．a; / D．/; /
Have you ever had travel problems because your airplane was late? It is a common problem and it is getting worse. Airport delays make people angry and cost the country billions in lost work time.
The Federal Aviation Administration (FAA) is the government agency that oversees air travel. They studied the problem of airline delays.
They found eleven major problems and suggested eleven ways to fix them. Some of the problems are caused because different regions of the country do things differently. The regions don't talk to each other enough. Some of them need new computers.
Also, more planes are flying. A strong economy has more people using airplanes to get around. Airplanes are a form of mass transportation now, like trains and buses were in the past. More planes in the airport cause delays.
The airport in San Francisco is a good example. It is growing fast. Many people go through San Francisco to get to other places around the world. Ron Wilson of the San Francisco International Airport says, “If you've got 18 flights that all want to take off at 8：00 am and you're on the 18th plane in line, you're going to be 40 minutes late.”
Weather is another main reason for delays. Weather causes about 70% of delays. Fog or freezing rain can cause delays.
The first thing the FAA wants to do is take control away from the regions during heavy traffic times and bad weather. A national center would make decisions on things that affect the whole country. The FAA also wants to put more distance between planes in the sky when the weather is bad. This rule could cause even more delays.
The FAA knows that their solutions will not solve the problems with airport delays. But, they hope to make things better. There are just too many planes, too few traffic controllers, and not enough new technology.
1.FAA found that some of the delay problems are caused by ________ between two regions.
A．different languages
B．technical misunderstanding
C．misunderstanding of the rules
D．lack of communication
2.Which of the following is NOT mentioned as a reason for airline delays?
A．A growing number of flights.
B．Bad weather.
C．A growing population.
D．Lack of new technology.
3.From the passage we can infer that ________.
A．FAA is a national center which controls all the flight matters
B．FAA has taken control to solve airport delays
C．in San Francisco, each plane will delay about 40 minutes
D．safety rules during bad weather may cause more delays
4.Which of the statements best gives the idea of the passage?
A．FAA should make decisions to stop airport delays.
B．Airport delays are on the rise.
C．Travel problems cost billions in lost work time.
D．FAA has taken control of air traffic nationwide.
