单项选择题

The main idea of the second paragraph is

A．how to avoid double-click on infected email attachments.
B．how emails both carry and spread viruses and worms.
C．what new viruses can automatically launch themselves.
D．what new viruses are capable of with an double-click on.

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单项选择题

What is the problem when few realize the link between the ability to talk fast and easily understandable pronunciation and meaning

A．They can actively learn vocabulary items or good syntax.
B．The students have many cognitive problems themselves.
C．It is difficult to talk fast and easily understandably.
D．The need for speed is not clear at the very beginnin

单项选择题

It is the responsibility

A．of the teacher to make clear to the students the relevance of the activity and the target.
B．of the teacher to see the relevance of what they're doing and their own personal goals.
C．of the students to understand the activity cognitively before they tackle something.
D．of the students to identify clearly their targets before they do anything in class.