Here is a reading on the United States’ policy of containment along with its accompanying vocabulary-buidling and comprehension worksheet.
This is a good general introduction to this piece of United States foreign policy toward the Soviet Union after World War II. In fact, I would go so far as to say that it is the best short introduction to the topic I’ve seen, presenting the biographies and motivations of the key players, to wit, George F. Kennan and President Harry Truman, as well as a quick analysis of the policy itself.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.