巴朗雅思全真模拟试题集

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本书包含六套学术类模拟测试题和六套移民类模拟测试题；模拟测试题的难度水平与真实的雅思考试一致。每套模拟测试题包括四个部分：听力、阅读、写作和口语。四个部分的出现顺序与真实的雅思考试四个部分的出现顺序一致。
你不需要严格按照顺序来完成每套模拟测试题，尽管这样更容易。你可以只做你想做的部分，也可以按照任何顺序完成每个部分。

（美）拉菲德（Lin Lougheed）
张珂（译）

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Odonata
Odonata is the order of insects that includes dragonflies and damselflies.To the human eye, their shining colors① and delicate-looking wings make thembeautiful creatures to behold. In the natural world, however, they are fearsomepredators. Dragonflies and damselflies get their name from the powerful serratedjaws they use to tear apart their prey. The word odonata means “toothed jaw.”
Dragonflies and damselflies are often confused with each other becausethey are very similar. Close observation reveals the differences between them.The most obvious difference is the way they hold their wings while at rest.Dragonflies hold their wings out to the side while damselflies fold their wingsback. Dragonflies have very large eyes that seem to cover the entire face becausethey are so close together that they touch each other. Damselflies’ eyes aresmaller, and there is a space between them. Dragonflies are larger and strongeranimals than damselflies and fly longer distances. Thus, they can be found inwoods and fields away from the water. Damselflies are not such strongfliers andare most often seen around the edges of ponds and streams since they do notnormally fly far from the water.
The largest odonata living today are the Hawaiian endemic dragonfly
and the Central American damselfly, each of these species having a wingspanof 19 centimeters. The smallest is the libellulid dragonfly, native to east Asia,with a wingspan of just 20 millimeters. Fossils have been discovered that provethat dragonflies have been in existence for over 300 million years. The largestdragonfly fossil ever found belongs to the now-extinct meganeura monyi, whichlived 300 million years ago and had a wingspan of 75 centimeters. This giantwas a fearsome predator indeed, which feasted on small amphibians as well ason other insects.
Dragonflies and damselflies both lay their eggs on or just below the surfaceof the water in a pond or stream. Some species lay their eggs on the stem ofan aqua