TOEFL at a level far below that which their perfor-mance in class would have indicated. The stan¬dardized score just didn't correspond with the score in the gradebook. In addition, teachers have become aware that for some students, the TOEFL represents their first experience in taking a com¬puter-assisted test. | 96 PREVIEW OF SPEAKING irrigation it s easier to control the water and more efficient since the water is directed only on the plants. But in hot climates some of the water can evaporate in the air. Still the main problem with the sprinklers is the expense for installation and maintenance because there s a very complicated pipe system and that usually involves a lot more repair and even replacement of parts and of course we have to factor in the labor costs in feasibility studies for sprinklers. Example Notes Flood Not efficient Difficult to control flat fields Initial expense to build canals ditches Requires maintenance Sprinkler Complicated pipe system Expensive to install maintain repair replace Labor cost Script for Example Answer Two methods of irrigation were discussed in the lecture. First flood irrigation. It involves the release of water into canals and drainage ditches that flow into the fields. The disadvantages of the flood method . . urn . . . well it isn t very efficient since more water is used in flooding than the crops actually. . .uh need and also it isn t easy to control. Another problem is the initial expense for the construction of the canals and the connecting ditches as well as . as maintenance. And besides that if the fields aren t flat the water doesn t I mean it isn t distributed evenly. The second method is sprinkler irrigation which uses less water and provides better control but there is some evaporation and the pipe system s complicated and can be expensive to install and maintain and there s usually a lot more labor cost because the equipment must be repaired and replaced more often than a canal system. Checklist The talk summarizes a short lecture. There are only minor inaccuracies in the content. The talk is direct and well-organized. The sentences are logically connected to each other. Details and examples support the main idea. The speaker expresses complete thoughts. The meaning is easy for the listener to comprehend. A wide range
