问题 选择题

酿制甘甜的葡萄美酒,主要利用(  )

A.甲烷细菌

B.枯草杆菌

C.霉菌

D.酵母菌

答案

微生物的发酵在食品的制作中具有重要的作用,如酿酒时要用到酵母菌,在无氧的条件下,酵母菌能分解葡萄糖产生酒精和二氧化碳.可见D符合题意.

故选:D

阅读理解

 There is a lion in a forest. Every day he goes about to look for food. The small animals in the forest are all afraid of him. Not far from the forest there are four bulls( 公牛  ). They are good friends, and often go about together. The lion tries many times to catch them, but can’t do so. Every time he comes near, the four bulls stand together to fight him. So he can do nothing to him.

One day the bulls have a quarrel( 吵架  ). After that each of them goes his own way. When the lion sees this, he is happy. He catches one bull and eats him up. Then he catches another. One by one he catches all the four bulls and eats them up.

小题1:How many animals are there in the story?

A.Four

B.Five

C.One

D.Many小题2:Does the lion want to eat the bulls?

A.Yes,we want.

B.No,he can’t.

C.Yes,he does.

D.No,he doesn’t小题3:Why can’t the lion want catch the bulls at first?

A.Because the bulls are too big.

B.Because the bulls are good friends.

C.Because the bulls stand together to find him.

D.Because he is not strong enough to fight bulls.小题4:How can the lion eat the bulls at last?

A.He catches them at one time and eats them up.

B.He catches one bull at a time and eats it up. Then he catches another.

C.He catches them at the time and eats them up.

D.One day he catches all the bulls and eats them up.小题5:What does the story want to tell us?

A.The lion is the King in the forest.

B.Bulls are foolish to quarrel with each other.

C.Lions are stronger than bulls.

D.Untion(团结) is strength(力量)

选择题