PartⅣ　Exercises

1.Read and complete the blanks.

（1）ATP is a metro________system fully developed and________in 1960s.

（2）ATP has the________of ATO and ATS and ATC，which are________of ATP.

（3）ATP can monitor the functions of a train and its________.Any failure will________the alarm system and stop the line operation.

（4）ATP can operate the train operations________and more________.

2.Translate the following passage into Chinese.

ATP system contains two parts，On-board ATP and Ground ATP.On-board ATP includes ATP module，ATP antenna and train speed sensor（OPG）.OPG can read train's speed and feed readings to ATP.Meanwhile，ATP monitors train's location and parts'status.If any data does not match with ATP program，a troubled train or a series of trains will be stopped.ATP antenna will send the message to Ground ATP.So the dispatchers will be alerted.

The functions of ATP are listed as following：stop protection，train location detection，speed protection，speed and distance detection，train interval control，temporary speed restriction，door control and train operation record.