- 阅读短文,完成1-5小题。What do you think is the most common illness? Do you get ill sometimes? We are lucky to live n...
- 阅读理解。Do you know all birds protect themselves by always listening and watching out for danger? At thesmallest si...
- 阅读理解。All of us know trees are useful to man in three very important ways: they give us wood and otherproducts, t...
- 阅读理解。Trees are one of the oldest "citizens (公民)" of our Earth. They keep our air clean, reduce noise pollution...
- 阅读理解。Spending two or three hours playing outdoors each day can reduce a child's chance of becoming short-sighted...
- 阅读下面短文,简要回答所给问题。The first Earth Day was in 1970. People were beginning to worry about what we were do...
- 根据短文内容,判断下列句子是否正确,对的填(A),错的填(B)。Diseases that can spread from one person to another are cal...
- 读短文完成下列两项任务。Here are two cars. They may some day (1)_____ the place of today's big cars. If we use such c...
- 阅读理解。Plants are very important. This is because plants can make food from air, water and sunlight. Animalsand ma...
- 阅读理解。Sometimes, people are not clear about what kind of food is healthy and what kind of food may do harmto our ...
- 完形填空。Mental health is about the way you think and feel and your ability to deal with ups and downs. Even thoughy...
- 阅读理解。You are probably familiar with the saying: An apple a day keeps the doctor away. A recent researchcarried o...
- 阅读理解。Every time you turn on the television or take a ride in a car,you could be adding to a problem called acidr...
- 阅读理解。There has been a lot of rain in California recently. Villagers and leaders there begin to be worried becaus...
- 根据短文内容和首字母提示,把所缺单词填写在短文后面相应的横线上,使句意完整。It's very important for us to keep (1)h__...