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parts of Africa, rainfall is a very unreliable
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IELTS Practice Now Practice in Listening, Reading, Writing and Speaking for the IELTS Test ( PDFDrive )
parts of Africa, rainfall is a very unreliable the development of power sources for water provider of such water For example, in pumping (Hofkes and Visscher, 1986), for Zimbabwe, Mupawose (1984) states that many people in rural Africa the use of human unreliable rainfall and the incidence of mid- energy remains the only practical option season drought represent the single most (Lambert and Faulkner, 1991) In recent years critical uncertainty facing the Zimbabwean there have been significant improvements in farmer today the design of handpumps for community use However, community water points still suffer While staple foods such as maize and nee breakdowns and attempts to remedy this, produced during the rainy season can be through community managed pump stored for consumption in the dry season, the maintenance schemes, are still far from same is not true of vegetables and fruit which universally successful are essential for good nutrition Since the early part of this century, the answer to the problem The problems of community management of inadequate rainfall has been through the could be avoided through the promotion of provision of conventional irrigation schemes household supplies, where these are feasible An example of such a strategy in Zimbabwe is identify suitable water-lifting devices. Almost (he program of upgrading family wells (Mtero all existing human powered pumps tested and Chimbunde, 1991). However, most of the could not supply water at more than about 0.3 pumps developed for community use are litres per second, which is not sufficient for either not available to individual households or irrigation. Two designs were finally selected as are too expensive. the most promising for further development, In recognition of the need for simple water- the rope-washer and the treadle (Lambert and lifting technology, research was carried out to Faulkner, 1991). n. Modification for unlmed ponds or streams. Questions 28-30 Read the following statements. According to the information in the reading passage, if the statement is true, write T, if the statement is false, write F, and if there is no information about the statement in the reading passage, write NI. Write your answers in the spaces numbered 28-30 on the answer sheet. One has been done for you as an example. Example: The difficulty in finding water in Africa is highly publicised. Answer: T 28. Government agencies only consider dams and rivers as sources of water. 29. The pumps will help African villagers develop small industrial projects. 30. Most of the experimental work has been done in Zimbabwe and Kenya. Questions 31-36 In the section after the subheading, The need for water, there are 7 references cited. Questions 31-36 list 6 of the references. Below is a list of statements A-K which are supported by the references. Match each reference (Questions 31-36) with its corresponding statement. Write the answers A-K, in the spaces numbered 31-36 on the answer sheet. One has been done for you as an example. There are more statements than references so you won't use them all. Example : Answer. Lambert and Faulkner, 1991 K 31. Mupawose, 1984 32. Morris and Thorn, 1990 33. Wright, 1986; Arlosoroff et al, 1984; Bell et al, 1987 34. Hofkes and Visscher, 1986 35. Lambert and Faulkner, 1991 36. Mtero and Chimbunde, 1991 List of statements A Dams usually take up a lot of land so that farmers have to move somewhere else. B There has been little success with irrigation projects. C It is important to have an adequate water supply. D Human power is still cheaper and more readily available. E Rainfall is too little and too irregular when most needed. F Building dams has helped improve health. G There is a plan to improve individual domestic wells. H Experiments have been done to provide energy to pump water. I Most families cannot afford to buy pumps. J The design of hand pumps has improved lately. K The rope washer and treadle will help solve the problem. Questions 37-43 Below is a paragraph explaining the design and development of the water pump., Trere are some words missing from the paragraph. From the list of words below select ONE correct word for each space. Write your answers in the spaces numbered 37-43 on the answer sheet. Pump design and development The principle of the rope-washer pump is very old? Dating back to ancient Rome and China/ A pipe extends from the surface down to below the water 37. ___________. A loop of rope with washers attached is pulled by a 38. _______________ up through the pipe. Attached to the rope at intervals are washers travel up 40. ________________ the pipe, they draw water with them which discharges at the top of the pipe. Historically the pulley was fashioned from wood or steel with teeth to 41. _____________ the washers on the rope. Considerable 42. ___________ was needed to make a pulley capable of pulling a wet and slippery rope which was under tension from the 43. _________________ of water in the pipe. grip height level length inside diameter skill weight tension centre pulley handle size depth Over Strength Middle Pump List of words READING TEST 3 QUESTIONS 1-17 You are advised to spend about 20 minutes on Questions 1-17 which refer to Reading Passage 1 below READING PASSAGE 1 Download 1.65 Mb. Do'stlaringiz bilan baham: |
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