恰当的选择评估基准日，这体现了（）。A.时点原则 B.供求原则 C.贡献原则 D.预

阅读理解。

     It's 8:00 pm. You are sitting in front of the television and feel like some chocolate ice cream. You can't

stop thinking about it. If you can't find any in the fridge, you may even go to the shop to get some.

     We all have those strong wishes for delicious food like ice cream, fast noodles, or fried chicken. Eating

a little is not bad for your health, but eating too much can give you weight problems. So how do you stop

yourself from eating more? Experts (专家) have some easy ways to get over your cravings (抵制诱惑).

     Let them pass. Studies show that the cravings last only about 10 minutes, so try to wait for a short time

to let the cravings pass before you walk into the kitchen or to the shop.

     Eat less at a time. You need to care about how much you are eating. Try to eat only a little bit of food at

one time. For example, put potato chips in a small bowl and just eat those in it.

     Eat healthy food. Try to eat a similar (相似的) food that is healthier than the one you want. A glass of

milk is better than sweets. Or, low-fat yogurt (酸奶) is healthier than ice cream.

     Eat all kinds of food. Every food is good for your health if you eat in a right way.

1. The word "them" in "Let them pass" means "_______".

A. the cravings for clothes

B. the cravings for food

C. the cravings for money

D. the cravings for video games

2. Studies show that the cravings last only about _______ minutes.

A. 30

B. 20

C. 10

D. 5

3. From Paragraph 4 (第4段), we know we'd better _______ to keep healthy.

A. care about what we are eating

B. eat beef on a big plate

C. not eat too much at a time

D. eat more potato chips

4. Which is healthy food?

A. low-fat yogurt

B. ice cream

C. chocolate

D. fast noodles

5. This passage mainly (主要) tells us ________.

A. we'd better not have chocolate ice cream

B. we need to know what we eat every day

C. not every food is good for our health

D. how we can stop ourselves from eating more

血气分析仪氧气和二氧化碳系统定标所使用的标准气是（）

A.5%CO₂和5%O₂

B.5%CO₂和10%O₂

C.5%CO₂和20%O₂

D.10%CO₂和5%O₂

E.10%CO₂

怀念母亲（节选）  

      后来我到德国留学，住在一座叫哥廷根的孤寂的小城，不知道为什么，母亲频来入梦。我的祖国母亲，我是笫一次离开她。不知道为什么，我这个母亲也频来入梦。

1．“频来入梦”是什么意思？ 

     ______________________________________________________________________________

2．文中作者将祖国比做什么？说明了什么？  

     _______________________________________________________________________________

 3．你是怎样理解文中画线句子的？  

     ________________________________________________________________________________

与森林减少无关的环境问题是 （ ）

A．臭氧层破坏

B．土地荒漠化

C．水土流失

D．生物多样性锐减

河北一建筑公司承建了洛阳市开发区某22层住宅楼，总建筑面积28630m²，建筑高度大于1.66m，全现场浇钢筋混凝土剪力墙结构，地下为筏板基础。工程在外檐装修时采用的是可分段式整体提升脚手架，脚手架的全部安装升降作业，以工程分色的形式交给了该脚手架的设计单位进行。在进行降架作业时，突然两个机位的承重螺栓断裂，造成连续5个机位上的10条承重螺栓相继被剪切，楼南侧51m处的架体与支撑架脱离，自45m的高度坠落至地面，致使在架体上和地面上作业的20余名工人中8人死亡，11人受伤。

( )是为在现浇钢筋混凝土结构施工过程中，克服由于温度、收缩等而可能产生有害裂缝而设置的临时施工缝。

A．施工缝

B．连接带

C．后浇带

D．预留带