改革后，如何提升托福听力

(据8月10日大陆首考的学生反映整场听力考试只出现一道重听题?)。或许对于很难判断说话者内容功能的同学来说是个福音。但不知是否为小概率事件，还需要通过下几场考试再去印证。

Professor. OK. It's important to 1. ______ _ ______ ______before it reaches land because it can help save lives and avoid the enormous costs of an unnecessary evacuation. But the factors leading to a hurricane's intensity like wind speed is very tricky to measure, cuz they’re changing constantly. So can anyone tell me how we get information about the intensity of a hurricanes that’s on the way? Jennifer?

Jennifer: Well, don't we.. like fly planes into it?

Professor: Right. Planes that monitor hurricanes fly through the eye of a hurricane to measure the speed of the storms wind. But it's very 2.________and brings a lot of 3.____.

Jennifer: I understand the point about it being risky for the pilots with the high winds and

lightning and everything. But um. how can it be so expensive?

Professor. Well. You see, hurricane-monitoring planes are built to withstand strong winds. And they’re usually 4. ______a lot of sophisticated equipment that will measure wind speed and other things. One plane costs about 100 million dollars and its single flight costs like 50 thousand dollars. Plus, it can take as many as 10 flights to 5.______ a hurricane as it approaches land. From the readings of these direct measurements of hurricane force, we can determine whether to evacuate the area. But that’s an expensive approach. I mean, we 6.___ simply fly planes into every hurricane and cyclone.

Now a couple of researchers think there may be a better way to measure a hurricanes intensity…uh. a much more cost-effective way. It has almost no risks and requires much lower tech equipment so this method is very 7._____. It's a microphone. an underwater microphone called a hydrophone

OK. so how it works is...um receives 8. ____waves underwater. By measuring the noise of a hurricane underwater, we can predict……

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