问题 单项选择题

沙立度胺可引起()。

A.灰婴综合征

B.新生儿溶血

C.高胆红素血症

D.海豹畸胎

E.四环素牙

答案

参考答案:D

解析:本组题考查要点是“妊娠期用药和新生儿期用药特点”。沙立度胺(反应停)可引起胎儿肢体、耳、内脏畸形,产生海豹畸胎。磺胺药、硝基呋喃类药也可使葡萄糖醛酸酶缺乏的新生儿出现溶血。新生儿应用氯霉素后,由于缺乏葡萄糖醛酸转移酶,不能与葡萄糖醛酸结合成无活性的代谢物,导致血浆中游离的氯霉素增多,使新生儿皮肤呈灰色,引起灰婴综合征。新生霉素也有抑制葡萄糖醛酸转移酶的作用而引起高胆红素血症。

问答题
阅读理解

Are you afraid of moving up to senior high school? It is a completely new experience, but you shouldn’t worry. We’ve put together a guide to help you.

You are not alone

   Remember that everybody else in your grade is in the same boat. You may not notice it, but they are just as nervous as you are.

   Moving up to senior high school is a chance, not a problem. Things are different, and all you need to do is be polite and learn the new rules.

The teachers will help

   If you don’t know what to do or are worried about something, then ask for help. Teachers are probably the best people to turn to because they have experience in helping new students.

Everything changes

   There are lots of differences between junior high school and senior high school. You will have your lessons with different teachers in different rooms. You will have homework for different subjects on different days, so make sure you get organized.

Other points

   If you’ve got an elder brother or sister at senior high school, then ask them for advice.

   Be yourself! It sounds simple, but people will respond much better to you if you act naturally.

   Going to bed early makes a difference. You’ll also find it easier to get up in the morning!

小题1:The author says that you’re not alone because other students______

A.are polite and nervous

B.will help you

C.feel the same as you do

D.will learn the new rules with you小题2:When you don’t know what to do, you can______

A.write your problem down

B.watch your brothers

C.go to bed early

D.turn to your teachers小题3:The main purpose of the passage is to ___________?

A.Tell students about a new experience

B.help students that are going to senior high school

C.tell students that teachers are the best helpers

D.teach students how to organize themselves