Практическая работа по иностранному языку для 2 курса

Инструкция: Выполните упражнения.

1 Complete the sentences with the correct form of the verbs in the box.

allow \cause\ let \make\ prevent\ stop

1 The water flows down onto the water wheel. This _____ the wheel turn.

2 The valve opens. This ______the water flow in.

3 The valve closes. This________ the water from flowing out.

4 The switch touches the contact. This_______ the electric current to flow.

5 The switch moves away from the contact. This_______ the electric current from flowing.

6 The water level rises. This _____ the float to rise.

2 Complete the driving instructor's words with the correct form of the verbs in

brackets.

1 If you________(press) the accelerator pedal, this_______ (make) the car_______ (go) faster.

2 If you________ (push) the brake pedal down, this________ (cause)

the car to______ (stop).

3 If you ________(pull) the parking brake up, this_______ (prevent) the car from ________(move).

4 If you (release)________ the parking brake, this _______(allow) the car to _______(move) again.

3 Complete the sentences with the correct form of the verbs in the box.

close \flow \from \go down\ open \rise\to

1 You push the handle down. This makes the piston ______.

2 The piston rises. This makes valve B _______ and causes valve A______

3 Valve B closes. This prevents water _______ into the chamber.

4 Valve A opens. This allows water________into the chamber.

5 You pull the handle up. This causes the piston ______

6 The piston goes down. This makes valve B_______and causes valve A ______ _

4 Draw a line from each word or phrase to its opposite.

expand \bring \decrease \low \assemble\ dismantle\ inlet \outlet\increase\ contract\ take \more than\ remove\ replace \disconnect\less than \connect \exactly\ high\ approximately

5Complete this explanation of how the electric bell works with the correct formof the words in the box.

close \flow \make\ move\ open \pull \strike

How an electric bell works

Someone presses the bell button, and the switch (1) _____ An electrical current_________ (2) through the coil. This__________(3) the coil become an electromagnet. The electromagnet_________(4) the metal arm towards it. (Diagram 1). This causes the hammer to (5) ______ the bell. At the same time, it(6) _ _ ____ the circuit. Now the coil is not a magnet. The hammer___________(7) away from the coil. (Diagram 2). This(8) ______ the circuit again. The hammer (9) ______ the bell again and again.