题干

下列有关能量的判断或表示方法正确的是(  )

A:从C(石墨)=C(金刚石)△H=1.9kJ•mol﹣1,可知金刚石比石墨更稳定

B:等质量的硫蒸气和硫固体分别完全燃烧,后者放出热量更多

C:由H+(aq)+OH(aq)=H2O(l)△H=﹣57.3kJ•mol﹣1,则向含0.1mol/L的盐酸中加入4.0 gNaOH固体,放出热量等于5.73 kJ

D:2 gH2完全燃烧生成液态水放出285.8 kJ热量,则氢气燃烧的热化学方程式为:2H2(g)+O2(g)=2H2O(l)△H=﹣571.6 kJ•mol﹣1

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D

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任务型阅读

    Reading is an interesting and useful thing. You can read a novel or a poem. But do you know how to read? Here's some advice for you.

    Define your purpose for reading. Before you start reading, ask yourself why are you reading this book.____Being specific and clear about your reading purpose not only helps you to eliminate books that you don't need to read. It also reminds you why reading the book is important to you as you are reading it.____

    ____ Whether you are reading fiction or nonfiction, it's important to enjoy what you read. Your friends may recommend books that they love, but those books might not necessarily be the ones you enjoy.

    Give up books that you don't enjoy. You may have selected books that are aligned with (与……一致) your purpose.____ But as you are reading them, there may still be some books that you won't enjoy reading. Whenever you realize that you aren't enjoying the book you are reading, give it up. Remember reading shouldn't be a chore (杂事).

    Give yourself a deadline to complete each book. Before you read each book, ask yourself when you need to complete this book. When you don't set a deadline to complete your book, there isn't a sense of urgency.____you tend to procrastinate (拖延).

A. When something is urgent

B. When something isn't urgent

C. Because reading is very important

D. Read only what you are attracted to

E. You may have selected books that you are attracted to

F. Most people read for two main reasons—pleasure or knowledge

G. This motivates you to keep reading and complete the book faster