ENGLISH FORESTRY PLASENCIA

EXAMPLE 1 EXAMPLE 2

Silvopastoralism in Mediterranean Basin: Extension, practices, products, threats and challenges G. Moreno* and F. Pulido Forestry Research Group, Universidad de Extremadura. In Options Méditerranéennes, A, no. 102, 2012  New approaches for grassland research in a context of climate and socio-economic changes. Abstract. Ranching generally causes a progressive deforestation. Nevertheless in Mediterranean countries trees are still present in many pastoral systems, here referred to as silvopastoral systems (SPs). Trees provide products as fruits as human food, fruits or leaves as fodder, wood and firewood, environmental services like patches of soil fertility and shelter for animals, and environmental goods such as carbon sequestration, water yield and quality and reinforced biodiversity. However, most of the SPs locate in marginal areas, have low commercial profitability and are subject to two divergent trends, intensification and extensification or abandonment that compromi

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If the predicate of the passive sentence is a verb transitive like: believe, think, find, say, report, consider, understand, acknowledge, expect, tell, know then you can change the active sentence into passive using two ways. Look at the examples: a) People say that he is handsome. (in the present) * It is said that he is handsome. * He is said to be handsome. (to + V1) b) They knew he had an idea. * It was known that he had an idea. * He was known to have had an idea. (to + have V3) These are formal structures. They are often used in news reports, on TV or in scientific texts.  CLICK HERE TO PRACTISE