Unit 1Can roommates influence your grades? Section 1: Reading comprehension ... Roommates and school grades . Section 2: Critical thinking and writing .. Writing step 1: Finding a topic... Writing step 2: Thinking about purposes and audiences. Section 3: Essay writing .. Unit 2 Is gender difference real?... Section 1: Reading comprehension Gender, brain function,and STEM performance .. Section 2: Critical thinking and writing ... Writing step 3: Developing a thesis... Section 3: Essay writing Unit 3 Do you remember? Section 1: Reading comprehension ... What your oldest memories reveal about you... Section 2: Critical thinking and writing .. Writing step 4: Organizing your ideas.. Section 3: Essay writing. Unit 4 Will smartphones ruin your friendship? .. Section 1: Reading comprehension . Section 2: Critical thinking and writing . Writing step 5: Collecting evidence .. Section 3: Essay writing.. Unit 5 How to end a relationship?.. Section 1: Reading comprehension... Is “ghosting" a good way to end a relationship?. Section 2: Critical thinking and writing ... Writing step 6: Anticipating objections .. Section 3: Essay writing Unit 6 Should you help? Section 1: Reading comprehension Babies' signs of altruism .. Section 2: Critical thinking and writing Writing step 7: Writing an introduction... Section 3: Essay writing... Unit 7 How to spend the recess time? ... Section 1: Reading comprehension Boys who sit still have a harder time learning to read ... Section 2: Critical thinking and writing . Writing step 8: Revising your draft Section 3: Essay writing .. Unit 8 How to handle changes?.. Section 1: Reading comprehension .. Meet the new boss ... Section 2: Critical thinking and writing .. Writing step 9: Proofreading . Section 3: Essay writing 答案解析