VOA慢速英语:Some Tips for Cold Storage of Foods

so也可以用so that替换，这样就是结果状语从句。但是如果这个句子是这样：……so that the cloth can stay wet，这里的so that就是引导目的状语从句了。

2.Some foods can make you sick if they are stored in conditions that are not cold enough to prevent the growth of harmful organisms.

make you sick宾语补足语

make后跟宾语+宾语补足语的形式。最常见的使役动词有：make， have， leave。他们都表示“使得”，后面都可接宾语+宾语补足语的结构，但用法上有所不同。

make用作使役动词表示“使；使成为”时，可跟复合结构，即“make+宾语+宾语补足语”，其中的宾语补足语可以是形容词或名词、不带to的不定式、过去分词。
　　1). 我们推选他为我们足球队队长。
　　We made him captain of our football team.
　　2). 我们队赢了的消息使我们大家非常高兴。
　　The news that our team had won made us very happy.
　　3). 大雨使得我们无法出去。
　　The heavy rain made it impossible for us to go out.
　　4). 奇怪的声音使我们感到恐惧。
　　The strange noise made us frightened.
　　5). 在交通嘈杂声中他无法使自己的声音提高到让别人听到。
　　He couldn’t make himself heard above the noise of the traffic.
　　6). 什么东西使得草生长?
　　What makes the grass grow?
　　注意：过去分词作make的宾语补足语时，变为被动语态不用加to； 但当不定式作其宾补时，变为被动语态一定要加to。
　　这个男孩被迫每天干十二个小时的活。
　　The boy was made to work twelve hours a day.

3.Freezing can keep some foods in good condition for months after the growing season.

in good condition状况良好。通常还可以用于人，表示身体健康

kept in good condition.
保持处于良好的状态。

4.Yet foods can be damaged if they are kept too cold.

Yet用法

■yet用作连词时，与but一样也主要用于转折，意为“但是”“而”：

I have failed, yet I shall try again. 我失败了，但我还要尝试。

The judge was stern, yet completely fair. 法官很严峻，却完全公正。

They are the same, yet not the same. 它们又一样，又不一样。

It is strange, yet it is true. 那真是怪事，然而却是事实。

I’ve been away only for three years, yet I can hardly recognize my hometown. 我仅在外三年，可我几乎认不出我自己的故乡了。

He said he was our friend, yet he wouldn’t help us. 他说他是我们的朋友，但却不肯帮助我们。

■有时用在句首。如：

Yet the house was cheerful. 但屋子里显得很欢快。

Yet its population has doubled. 但它的人口翻了一番。

■yet有时可与并列连词and或but连用，构成习语and yet和but yet，且两者大致同义(均相当于表转折的but)：

I gave him ten pounds (and) yet he was not satisfied. 我给了他十镑但他仍不满足。

She’s vain and foolish, and yet people like her. 她很虚荣愚蠢，但人们却喜欢她。

She drove very fast to the airport, but [yet, and yet, but yet] she missed the plane. 她开快车去机场，可还是误了飞机。

■although不能与表示转折的but连用，但是却可以与yet连用。如：

Although we have made some progress, yet we still have a long way to go. 我们虽然取得了些进步，但还是远远不够的。（注：转自英语语法网）

5.A better idea is to harvest foods either early or late in the day, then leave them to cool naturally.

either or不是...就是..., ...或...

Tom is going to buy either a guitar or a piano.
汤母不是要买一把吉他就是要买一架钢琴。