英语(一)串讲笔记

来源:  点击数:  录入时间:07-08-18 14:38:05

ing to many scientists, the burning of rainforests is also directly contributing to the so-called greenhouse effect.

contribute to在本句中的意思是help to bring about (促战,造成)。如:

1) Your suggestion will contribute to solving the problem. (你的建议将有助于解决这个问题。

2)Carelessness contributed to his errors. (粗心大意造成了他的错误。)

so-called用作形容词,意思是“所谓的”。如:

1) He was deceived by his so-called friend. (他被所谓的朋友骗了。)

2) The so-called Christian even showed no love to his own children.

(这个所谓的基督徒连对自己的孩子都没有爱心。)

effect在句中用作名词,意思是“效果,效应”,在第三单元中我们对名词effect和动词offect做过详细讲解,再请看几个例句。

1) The sound effect of this movie is great. (这部电影的音响效果很棒。)

2) Excessive smoking will have a bad effect on your health. (吸烟过多将会给你的身体带来不良影响。)

3) Too much rainfall affected the harvest. (过多的雨水影响了收成。)

4)I hope what I have said won't affect your decision. (希望我的话不会影响你的决定。)

4. It is a medicine chest of unlimited potential.

chest可以指胸腔或柜子、箱子,medicine chest是“药箱”的意思。

potential在句中用作名词,意思是“潜力”,potential也可用作形容词,意思是“潜在的”。

1) They are determined to tap their potential to the full. (他们决心充分挖掘自己的潜力。)

2) The aim of this advertisement is to attract potential customers. (这则广告的目标是吸引潜在的顾客。)

3) You have to know more about the potential demand of the market.

(你得对市场上可能达到的需求量有更多的了解。)

5. In today's pharmaceutical market 15 of the 125 drugs derived from plants were discovered in the rainforest. derived from plants是现在分词短语做定语,相当于被动语态的定语从句。如:

1) The beer bought from the supermarket is very light. (在超市买的那啤酒口味很淡。)

2) The candy made from cactus tastes strange. (用仙人掌做的糖果味道很怪。)

15 of the 125意思是125中的15.再如two of the three (三个中的两个)

derive from意思是get from, obtain from, 如:

1) Much of his knowledge is derived from books. (他的许多知识得自书本。)

2) He derived his stories from his experiences in the countryside. (他的故事来自于他在农村的经历。)

6. Rare birds and animals that cannot be found anywhere else in the world have been disappearing at the rate of one a year since the turn of the century.

句中的else是形容词,常接在不定代词的后面,表示“其他的,别的”,如:

1) Is there anything else I can do for you?(我还能为你做些别的事吗?)

2) Did anybody else know this? (有其他人知道这件事吗?)

3) He didn't go anywhere else. (他没去其他地方。)

one a year意思是“每年一种”。这种表达方式在英语中很常用,如:

1) Take the medicine three times a day. (每日三次服这种药。)

2) They met three times a week. (他们每周见三次。)

3) He finishes 5 books a month. (他一个月读完五本书。)

时间状语用since引导时,句子中的时态常用完成时。如:

9 7 3 1 2 3 4 4 8 :
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