回答下列问题：（1）低血糖的人会出现乏力、疲倦等症状，是因

问题填空题

回答下列问题：

（1）低血糖的人会出现乏力、疲倦等症状，是因血液里______浓度低，应及时补充．

（2）在日常生活中，如果遇到重金属盐中毒，可立即大量服用______来解毒．

（3）2008年北京奥运会“祥云”火炬正在国内传递．“祥云”火炬的燃料成分中含有丙烷（化学式为C₃H₈），丙烷属于______（填“无机物”或“有机物”），丙烷完全燃烧后生成二氧化碳和水，其燃烧的化学方程式为______．

答案

（1）低血糖的人会出现乏力、疲倦等症状，是因血液里葡萄糖浓度低，应及时补充．故填：葡萄糖．

（2）在日常生活中，如果遇到重金属盐中毒，可立即大量服用鸡蛋清等富含蛋白质的食物来解毒．故填：鸡蛋清．

（3）丙烷是含有碳元素的化合物，属于有机物．故填：有机物．

丙烷完全燃烧后生成二氧化碳和水，其燃烧的化学方程式为：C₃H₈+5O₂

点燃

3CO₂+4H₂O．

完形填空。
There are different kinds of trains in the world. Trains can 1 people, animals, and other things. Some trains are 2 , the others are slow. They can reach most of the cities and towns. Some trains go 3 the hills if they are too high to go over. In big cities, the streets are usually 4 and some cars and buses often have to wait. So you can find trains under the 5 and trains on a rail above the streets. People can quickly be brought in or taken out. Can a train run over 6 ? Yes, it can. There are many bridges over the rivers. But it is not easy to 7 bridges. Today's trains have dining-rooms for people. You may 8 something in them on the way if you are hungry. Trains are 9 to men, women and children. Many children like to play with model trains. With the model trains they can build their own rails and 10 thewonderful world of trains.
( )1. A. carry ( )2. A. help ( )3. A. through ( )4. A. full ( )5. A. seas ( )6. A. water ( )7. A. mend ( )8. A. cook ( )9. A. useful ( )10.A. hate	B. take B. expensive B. among B. dirty B. farm B. air B. watch B. eat B. polite B. are afraid of	C. bring C. fast C. during C. free C. ground C. forests C. reach C. find C. bad C. get on well with	D. hold D. empty D. above D. busy D. gardens D. mountains D. build D. pick D. lucky D. enjoy