What is wrong with these two students? W

题型:完形填空

问题:

What is wrong with these two students? Why couldn’t they show their real ability when they took the exams? 小题1:___________________.This kind of problem is called “test anxiety”. In some cases, students have headaches or stomachaches. The result is usually poor grades.

Teachers and parents often think that such students get poor grades just because they are too lazy. 小题2: ______________. However, their poor grades are not always the result of laziness, but may be the result of nervousness.

Nowadays there are special teachers in schools to help such students.小题3: ____________________.

One way to overcome test anxiety is to learn to relax by exercising. Try some stretching exercises for a few minutes just before an exam. 小题4:_______________. First, breathe normally for one minute, counting the number of breaths you take. If you take ten breaths a minute, then, breathing deeply, take only five breaths a minute. Continue this for five minutes. Another method is like this: sit comfortably, close your eyes, and relax every part of your body. Try to keep your mind on one thing—something simple like tree. 小题5:________________________. Five minutes of doing this before an exam will help to keep you calm. 

A.They teach them how to become calm and stay relaxed.

B.Everyone has the right to a good weekend relax after five days on work and school assignments.

C.It is because they were so nervous that they couldn’t think or write clearly.

D.Another helpful method is to breathe deeply.E. They tell these “lazy” students to study hard.

F. Maybe you will think about other things, but keep coming back to the tree.

考点:序数词
题型:完形填空

人类社会需要充足的能源、良好的环境

(1)我国南海蕴藏着丰富的“可燃冰”资源,“可燃冰”的成分是甲烷水合物(CH4·xH2O)

①下列有关CH4·xH2O的说法正确的是       (填字母)

a、属于氧化物                           b、在低温高压下呈固态

c、碳元素质量分数高于甲烷      d、C、H、O原子个数比为2:6:1

②研究测得某可燃冰样品中,碳的质量分数为7.5%,则x的值为      

③可燃冰属于        (填“可”或者“不可”)再生资源。

(2)PM2.5表示每立方米空气中直径≤2.5μm的颗粒物含量。我国新修订发布的《环境空气质量标准》规定,居住区、混合区24小时内的PM2.5平均浓度在75µg/m³之内为达标。图为扬州一周PM2.5的实时监测数据

①从图中可知,这周PM2.5超标      天。

②下列措施中不能降低空气中PM2.5的是    (填字母)

a、戴口罩  b、禁止焚烧秸秆     c、植树造林

(3)酸雨也是环境问题之一。

①酸雨的PH值   5.6(填>、<或者=)

②形成酸雨的主要物质:含硫煤燃烧产生的        气体(填化学式)、汽车尾气排放产生的氮氧化物(NOx)。汽油中的主要成分是碳氢化合物,你推测汽车尾气中氮元素的来源是                

③大量使用化石燃料除了会导致酸雨、PM2.5超标以外,还会引起的环境问题有          

(任写一种,下同)。因此人们开发了新能源,如           

题型:完形填空

烟叶由烟草公司或者其委托单位按照国家规定的()统一收购,其他单位和个人不得收购。()

A、收购标准

B、收购价格

C、收购标准和价格

D、收购面积

题型:完形填空

使用CT增强扫描的主要目的是()。

A.可以减少扫描时毫安秒的用量

B.帮助确定病变的位置

C.提高病变组织的空间分辨率

D.增强物体的对比度和观察病变组织的血供

E.提高CT机的密度分辨率

题型:完形填空

龋好发于牙齿的()

A.自洁区

B.边缘嵴

C.滞留区

D.舌面

E.牙尖

题型:完形填空

下列节流装置中,造价昂贵,但压力损失最小是()。

A.标准孔板

B.标准喷嘴

C.文丘里管

D.双重孔板

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