金昌公共英语等级考试 值得信赖 甘肃爱美信国际职业培训学校供应

Does this mean that plants talk to each other? Scientists don’t know，金昌公共英语等级考试. Maybe the first plant just made a cry of pain or was sending a message to its own branches, and so, in effect, was talking to itself. Perhaps the neighbors just happened to “overhear” the cry. So information was exchanged, but it wasn’t a true, intentional back and forth，金昌公共英语等级考试.

Charles Darwin, over 150 years ago, imagined a world far busier，金昌公共英语等级考试, noisier and more intimate (亲密的) than the world we can see and hear. Our senses are weak. There’s a whole lot going on.

A build-it-yourself solar still（蒸馏器） is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U. S. Department of Agriculture, it’s an excellent water collector. Unfortunately, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes. The only components required, though, are a 5＇ 5＇ sheet of clear or slightly milky plastic, six feet of plastic tube, and a container— perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.

Seventy miles an hour

He can’t have been…

1， 掌握用must have been表示对过去肯定的猜测，can’t have been表示对过去否定的猜测。

2， 重点词汇：take one’s advice, overtake,

3， 掌握Had better 的否定形式，had better not do sth.

4， 单词及课文要求背诵。

Don’t be so sure

He may be….

1， 掌握may be 和may have been的用法。

2， 重点词汇：make up one’s mind, look after, in the end，take, spend

3， 单词及课文要求背诵。

Sensational news

He said (said) he

1， 理解直接引语和间接引语的概念，掌握从直接引语转换成间接引语的规律。

2， 掌握said和told在间接引语中的用法。

3， 单词及课文要求背诵。