За час нужно сделать
Test
I. Choose the right answer.
1. … are important in industry because they can be easily deformed into useful shapes.
a) grains b) metals
c) tubes d) billet
2. In back-extrusion the … is placed in the bottom of a hole and a loosely fitting ram is pushed against it.
a) orifice b) imprint
c) workpiece d) rolling
3. … is the shaping of a piece of metal by pushing with open or closed dies.
a) drawing b) forging
c) rolling d) welding
4. Open-die forging is usually done by … a part between two flat faces.
a) hammering b) sheet metal forming
c) drawing d) rolling
5. Nowadays … is used instead of bolting and riveting in the construction of many structures, including bridges, buildings and ships.
a) sheet metal forming b) rolling
c) welding d) hammering
6. Gas welding has the advantage of using … that is portable and does not require an electric power source.
a) current b) pressure
c) equipment d) wire
7. The heat from the arc formed between the … and the metal melts the edges of the metal.
a) liquid b) carbon
c) filler d) electrode
8. Metal for the weld may be added by placing a bare … in the arc or the point of the weld.
a) wire b) electrode
c) carbon d) current
9. A small portion of material is removed at each pass of the … .
a) screw b) cutter
c) wheel d) thread
10. Other machining methods include … using ultrasound and cutting by mean of laser beam.
a) rolling b) drilling
c) welding c) drawing
ответ:3 Прочитайте ситуации и напишите предложения, как в примере. Используйте эти глаголы: потерять перерыв идти вверх сократить улучшить
Пример: Майк ищет свой кошелек. Он не может его найти и очень нервничает. - Он потерял это.
1. Маргарет не может ходить, и ее нога в гипсе. Это очень больно. 2. Английский у Марии был не очень хороший. Теперь это намного лучше. 3. У Тима в месяце не было шрама на щеке. Теперь у него есть шрам. 4. Этим утром я ожидал письма. Теперь у меня есть это. 5. На неделе штраф в автобусе был 6 $. Сейчас это 10 $.
Объяснение:
1. а) Tim was very exhausted. He tried keeping his eyes open, but he couldn't
b) James needed to borrow some money. He tried
to ask his best friend, but he was short of money, too.
c) Kids tried to put
the fireout but didn't succeed. Finally,someone called the firebrigade.
d) Kate rang the doorbell, but nobody answered. Then she tried
to knock on the door, but there was still nothing.
e) .A baby tried to
reach the toy on the table, but he wasn't tall enough.
f) Could you leave my room for some time? I'm trying to concentrate
2.
а)Our grandparents aren't able to look after themselves anymore. They need looking after.
b) Your hair is getting too long. It needs to cut
c) There is no need
in ironing my skirt. It looks nice and doesn't need
d) My coat is dirty. It needs cleaning
e) We worked hard and need a rest now. We want to
go away to a warm country for a short break.
Объяснение