III. Listen to the following passage and fill in the missing information into the text below

For reasons not well understood, cancer rates vary by gender, ______, and geographic region. For instance, more ______ have cancer than ______, and African Americans are more likely to develop cancer than persons of any other racial and ______ group in North America. Cancer rates also vary globally — residents of the United States, for example, are nearly ______ more likely to develop cancer than are residents of ______. The highest death rate from all cancers in males is ______ per 100,000 men in Hungary while the lowest death rate of ______ men per 100,000 is found in Mauritius, an island off the coast of eastern Africa. For women the highest cancer rate is ______ per 100,000 women in ______ compared to only 63 per 100,000 women in ______. The figures for the United States are ______ per 100,000 ______ and ______ per 100,000 ______. For particular cancers, the difference between countries may be as high as ______. Differences also occur within populations.

Scientists called epidemiologists study particular populations to identify why cancer rates vary. One method they use is to compare ______ and characteristics such as the ______, age, ______, or race of cancer patients to those of healthy people. Population studies provide useful information about ______ that increase the ______ of developing cancer.

WRITING AND SPEAKING

Write a summary of the text “Cell Division” in 200 words using the vocabulary of Lesson 4. Get ready to present it in class

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II. Turn the following sentences into Active Voice making any necessary changes	\|	Unit 2 Focus Words and Phrases

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