在绘制零件图时，零件的每一尺寸，一般只标注一次，并应标注在主视图上。

阅读表达 阅读短文，按要求完成短文后的各项任务。

There are many things you can do to improve your memory. Among them are many kinds of useful ways as well as taking special care of your health.

(1)It is _______ that you make ________ excited to make your memory more active. You can do this by doing some new activities and by changing your daily habits. Learning a new skill helps your brain（大脑）to develop. When trying to remember something, you should pay special attention to the most important things about it. Do not allow other thoughts to enter your mind because this will reduce your chances of making right memories.

An excellent way to help memory is to connect information with pictures. Try to see the pictures in your mind. Taking notes and keeping a diary will also be helpful.

(3)Healthy food and plenty of vitamins are necessary for your memory to work well. Drinking a lot of water also helps keep your memory. You must allow your brain to have enough sleep and rest. When you are asleep, your brain stores memory. Not enough sleep can cause problems with storing information. And being tired will also stop you from being able to think clearly and well.

In order to keep your mind on your work, you must be free-from worry. Generally keeping fit and normal health checks are both important as well-not just for improving your memory.

小题1:将（1）句的空白处分别填入一个适当的词使句意完整，上下文通顺。

___________ ______________

小题2:回答问题：What should you pay special attention to when trying to remember something?

_____________________________________________________________________________________

小题3:将（3）句译成中文。________________________________________________________

小题4:在文中找出与If you are tired, you can’t think clearly and well.意思相近的句子，并将它写在答题卡上。

______________________________________________________________________________________

小题5:在文中找出最能表达该短文主题的句子，并将它写在答题卡上。

______________________________________________________________________________________

( )的内聚力为零。

A．黏性土

B．砂土

C．碎类土

D．软土

幼儿园图书室有图书若干本，按3：2分给大班和小班后，大班小朋友分到了60本，你能帮小班小朋友算算他们能分到多少本吗？

疟疾患者，热多寒少，汗出不畅，头痛，骨节酸痛，口渴引饮，便秘，溲赤，舌红苔黄，脉弦数；其治法是（）

A.和解表里，温阳达邪

B.祛邪截疟，和解表里

C.解毒除瘴，清热保津

D.益气养血，扶正祛邪

E.清热解表，和解祛邪

用插针法测定玻璃折射率的实验中，以下说法正确的是（ ）

（1）P₁、P₂及P₃、P₄之间的距离适当大些，可以提高准确度.

（2）P₁、P₂及P₃、P₄之间的距离取得小些，可以提高准确度.

（3）入射角θ₁适当大些，可以提高准确度.

（4）入射角太大，折射光线会在玻璃砖的内表面发生全反射，使实验无法进行.

（5）P₁、P₂的间距，入射角的大小均与实验的准确度无关.

A．（1）（3）

B．（2）（4）

C．（3）（5）

D．（1）（4）某同学在画界面时，不小心将两个界面ab、cd间距画得比玻璃砖宽度大些，如图所示，则测出的折射率n将              （填“不变”、“偏大”或“偏小”）