450)=450">
四级考试是许多童鞋必须通过的考试，其重要程度不言而喻。希望通过四级听力天天练，童鞋们可以提高听力水平，高分通过四级，冲刺六级。

全文听写，童鞋们注意数字听写规则哦~~

450)=450">
Hints:
Open University
full-time
The University of the Air
Some students at the Open University left school twenty years ago. Others are younger but all must be at least 21 years old. This is one example of how the Open University is different from all other universities. Its students must either work full-time or be at home all day, for instance, mothers of families. They do not have to pass any examinations before they are accepted as students. This is why the university called open. The university was started in order to help a known group of people who missed having a university education when they were young. The first name for the Open University was The University of the Air. The idea was to teach on the air, in other words, on radio and television.