A、 St. John' s University.
B、 Massachusetts Institute of Technology.
C、 University of California, Berkeley.
D、 Yale University.

【正确答案】 A

【答案解析】解析：细节题。文中提到的提供网上免费课程项目的学校有：Yale(耶鲁大学)，Johns Hopkins(约翰．霍普金斯大学)and the University of California，Berkeley(加州大学伯克立分校)，当然还有M．I．T．(麻省理工学院)。因此，正确答案是A。

A、 Lecture notes.
B、 Exams.
C、 Contact with teachers.
D、 Videos of demonstrations.

【正确答案】 C

【答案解析】解析：细节题。根据短文中Some materials from a course may not be available，and the site does not providecontact with teachers．可知网上免费课程并不提供和老师的联系和交流。因此，正确答案是C。

A、 About 116 schools around the world now offer course materials free online to the public.
B、 Open Course Ware only offers materials from graduate courses.
C、 Visitors can learn the same things M.I.T. students learn, and they can receive credits toward a degree.
D、 There are more visitors of the site from outside the United States and Canada.

【正确答案】 D

【答案解析】解析：细节题。根据短文中Sixty percent of the visitors are from outside the United States and Canada．可知美国和加拿大境外的访问者更多。因此，正确答案是D。

A、 Swedish.
B、 Portuguese.
C、 Chinese.
D、 Thai.

【正确答案】 A

【答案解析】解析：细节题。根据短文中There are links to materials translated into Spanish，Portuguese，Chinese and Thai．可知A为正确选项。因此，正确答案是A。