III．Reading Comprehension Section A Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that fits the context. A detailed study of biological diversity（多样性）in town and city gardens has found that they offer a vital refuge for animals and plants. It has also fund that many of the ideas about wildlife gardening are not  50  .In fact, small gardens are just as good as big gardens at 51 wildlife, suburban gardens are not always better than city gardens and non-native plants are not always harmful to native insects and birds. Britain’s 16,000,000 gardens are a refuge for hundreds of species of animals and plants that would find it  52   to survive on intensively （精细地）farmed land. According to the study, gardens are amazingly varied even compared to   53  environments that are good for wildlife. Small gardens are more interesting 54 they vary a great deal in botanical environment, All the wildlife responds to the variation. Ken Thompson of Sheffield University was involved n the first detailed study of the  55  living in British gardens when he and his colleagues surveyed 61 gardens in Sheffield. They really found a(n) 56 diversity of plants and animals. They also identified a range of simple   57  that improved a garden’s environment for wildlife. The top thing is to grow more big trees as these greatly  58  the volume of vegetation in the garden and a lot of 59 means a lot of places to live and a lot of things to eat.   60  , create a pond for insects and frogs. Think before stocking it with fish which will eat insect eggs. Also, it is not wise to light up the garden at night with bright lawn lamps, which will 61 many night creatures, Finally, don’t be too tidy: don’t be  62  to clear up everything when the garden stops flowering. Just 63 a bit of things lying around. To sum up, people who want to turn their gardens into wildlife refuges should  64  and let the grass grow tall, the flowers turn to seed and trees expand skyward. 50．A．true          B．basic         C．vivid         D．simple 51．A．selecting      B．importing     C．offering       D．attracting 52．A．impossible       B．illegal          C．lucky         D．convenient 53．A．peaceful      B．warm              C．natural         D．clean 54．A．before         B．unless          C．but           D．because 55．A．wildlife       B．men         C．germ         D．pet 56．A．confusing     B．complete      C．surprising     D．orderly 57．A．measures     B．standards     C．services       D．functions 58．A．occupy        B．increase       C．limit         D．reduce 59．A．vegetation     B．reservation       C．preparation      D．decoration 60．A．By contrast      B．As a result          C．In other words  D．In addition 61．A．block          B．disturb         C．benefit         D．protect 62．A．in a mess     B．in a way      C．in a hurry     D．in a while 63．A．forget          B．remove        C．avoid         D．leave 64．A．escape         B．relax         C．strive         D．retire