Look, Listen and Learn! - Workbook 4A - Part II. [antikvár]

Lesson 41Oral ExercisesExercise 1Sentence StructureRewrite these sentences making any necessary changes. Then refer to LESSON 41.1The astronauts will return to earth at exactly twenty-four minutes past five. (1.1)2We have to use computersfor calcuiations thatare very difficult. (II. 9-10)3You yourself might have a pocket-calculator which isveryquick. (II. 10-12)Exercise 2Example: The astronauts are returning to earth. - Are they?1Splash-down will be in the Pacific.2Scientists can calculate things to the nearest second.3They use mathematics.4A pocket-calculator cannot do difficult calcuiations.5Computers work on electrical circuits.DIFFICULT or HEAVY ?Computers can do difficult calcuiations.It was difficult to lift the desk because it was very heavy.difficultschwer (zu tun)heavyschwer (an Gewicht)Exercise 3Fill in difficult or heavy.1We can't solve this . . . problem.2I can't lift this box. It's too 3This suitcase is very Please help me carry it.4The questions were very EASY or LIGHT?The questions were very easy.It was very easy to lift the desk because it was very light.easyleicht (zu tun)lightleicht (an Gewicht)