单项选择题

Questions 17—20 are based on the following monologue about hobbies. You now have 20 seconds to read Questions 17—20.
What is the speaker’s purpose in giving this talk

A．Explain the reason of the shift of interest.
B．Tell us something about the sea.
C．Tell us something about the space.
D．Encourage people to investigate the sea.

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单项选择题

A simple strategy to sleep better is to______.

A．Worker harder than you could
B．put your stress under control
C．breathe through your nose
D．sleep on a chair instead bed

单项选择题

A．untilB．afterC．whileD．so

A．until
B．after
C．while
D．so

Questions 17—20 are based on the following monologue about hobbies. You now have 20 seconds to read Questions 17—20. What is the speaker’s purpose in giving this talk 您的浏览器不支持 audio 元素。

Questions 17—20 are based on the following monologue about hobbies. You now have 20 seconds to read Questions 17—20.
What is the speaker’s purpose in giving this talk