问题 选择题

下列基本实验操作与所需关键仪器合理的是(  )

A.过滤(泥三角)

B.蒸馏(分液漏斗)

C.蒸发(蒸发皿)

D.萃取(玻璃棒)

答案

A.过滤时必须用到的一组仪器是烧杯、漏斗、玻璃棒、铁架台,故A错误;

B.蒸馏操作中使用的仪器是铁架台(带铁圈)、酒精灯、蒸馏烧瓶、冷凝管、牛角管和锥形瓶等,故B错误;

C.蒸发时用到的仪器主要有酒精灯、铁架台(带铁圈)、蒸发皿、玻璃棒等,故C正确;

D.萃取实验使用的仪器有分液漏斗、烧杯和铁架台(带铁圈),故D错误.

故选C.

判断题
阅读理解

A book review tells not only what a book is about,but also how successful it is at what it is trying to do.Professors often assign book reviews as practice in careful analytical(分析的) reading.

As a reviewer,you bring together the two strands of accurate,analytical reading and strong,personal response when you indicate(指出) what the book is about and what it might mean to a reader(by explaining what it meant to you).In other words,reviewers answer not only the WHAT but the SO WHAT question about a book.Thus,in writing a review,you combine the skills of describing what is on the page,analyzing how the book tried to achieve its purpose,and expressing your own reactions.

Most book reviews start with a heading that includes all the basic information about the book,like:

Title.

Author.

Place of publication,publisher,date of publication.

Number of pages.

Like most pieces of writing,the review usually begins with an introduction that lets your readers know what the review will say.The first paragraph usually includes the author and title again,so your readers don’t have to look up to find this information.You should also include a very brief description of the contents of the book,the purpose or audience for the book,and your reaction and evaluation.

Then you move into a section of background information that helps place the book in context and discusses how to judge the book.Next,you should give a summary of the main points,quoting(引用) and explaining key phrases from the author.Finally,you get to the heart of your review—your evaluation of the book.In this section,you might discuss some of the following issues:

•How well the book has achieved its goal.

•What possibilities are suggested by the book.

•What the book has left out.

•How the book compares with others on the subject.

•What specific points are not convincing.

•What personal experiences you’ve had related to the subject.

It is important to use labels to carefully distinguish your views from the author’s,so that you don’t confuse your readers.

Then,like other essays,you can end with a direct comment on the book,and tie together issues raised in the review in a conclusion.

There is,of course,no set form,but a general rule is that the first one­half to two­thirds of the review should summarize the author’s main ideas and at least one­third should evaluate the book.

小题1:According to the text,personal response of a book reviewer refers to “________”.

A.accurate and analytical reading

B.the reviewer’s indication of what the book is

C.the reviewer’s indication of what the book meant to a reader

D.skills of describing what is on the page小题2:What is the most important part of a book review?

A.The heading.

B.The evaluation.

C.The conclusion.

D.The introduction.小题3:Readers will get puzzled if ________.

A.there is no heading in a book review

B.the book review is not complex enough

C.the reviewer’s point of view is mixed with the author’s

D.there are some different issues listed in the book review小题4:What does the text mainly tell us?

A.Steps to read a book.

B.Tips for writing a book review.

C.The way to develop your idea.

D.Things not to be avoided in a book review.