问题 名词解释

学习曲线

答案

参考答案:学习曲线是学习效应的一种描述方式。学习效应是指当一个人或一个组织重复地做某一产品时,做单位产品所需的时间会随着产品生产数量的增加而逐步减少,然后才趋于稳定的现象。

单项选择题 A1型题
阅读理解

根据短文内容判断正误,正确的在括号内填T,错误的在括号内填F

     We know mosquitoes very well. Mosquitoes fly everywhere. They can be found almost all over the

world, and there are more than 2,500 kinds of them.

     No one likes the mosquito. But the mosquito may decide if she loves you. She? Yes, she. The male

mosquito doesn't bite! Only the female mosquito bites because she needs blood to lay eggs. She is always

looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn't like

your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just

remember you are chosen. You're different from the others!

     If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly

and quietly that you may not feel anything different. After she bites, you will have an itch(痒) on your body

because she puts something from her mouth together with your blood. When the itch begins, she has flown

away.

     And then what happens? Well, after her delicious dinner, the mosquito feels tired. She wants to find a

place to have a good rest. There, in a tree or on a wall, she begins to lay eggs, hundreds of eggs.

(     )1.All the people don't like mosquitoes.

(     )2.All mosquitoes like to bite people for blood.

(     )3.If a mosquito wants to bite you, it means she is very tired.

(     )4.The mosquito bites you too quickly and quietly to let you know.

( )5.The itch begins after the mosquito flies away.