7.5。。默默回忆帖。。记忆力极其拙劣的楼主压力大。。。。。

sevenmiles

阅读是否是这篇文章：

Dodder is a wiry, orange vine that steals water and nutrients from other plants. Scientists have now found that this vine chooses its victim by smell, growing its shoots in the direction of a plant's natural perfume. A seedling of a vine known as dodder attaches to a tomato plant.

When a dodder seed sprouts, it doesn't grow roots to seek its own food. Instead, it grows a shoot that reaches out to other plants, tapping them for food. The baby vine needs to find a host within a week to survive. It then grows into a spaghetti tangle that can even ensnare more than one plant.

Also known as strangleweed and witches' shoelaces, dodders are listed among the 10 worst weeds in the United States. They can cost farmers millions of dollars by stunting their crops.

To figure out how a type of dodder vine known to prefer tomato plants finds a victim, scientists placed dodder sprouts near several possible targets. These targets included pots of moist soil, little jars of dyed water that created colored lights, young tomato plants, and even a cup of perfume made from chemicals that tomato plants give off.

Seedlings grew toward the tomato plant. They also reached out toward the cup of tomato perfume. They tended not to grow toward the moist soil or colored water.



The scientists then used a different setup, hiding the targets in chambers connected to dodder sprouts only by curving pipes, so the vine could find them only by smell. Dodder sprouts still grew toward their favored targets.

By placing dodder sprouts near different plants, the scientists found that the type of dodder that they were studying prefers tomatoes and a flower called impatiens. And when given a choice between tomato and wheat, vine seedlings grow toward tomato.

The researchers then tested seven of the ingredients that make up tomato perfume separately. Dodder sprouts were attracted to three of them.

One of these ingredients turns up in wheat perfume, but the wheat perfume also contains a substance that repels dodder sprouts. This chemical could offer farmers one way to fight the vine and save their crops.—C. Gramling

cherise1276

楼主，你的语文考的还是不错的

pumpkin223

LZ只要数学再上去点应该就差不多有7了吧~~加油！

cherise1276

楼主我也是今天考的，我的数学考了49，语文只考了24，你语文一般性是怎么复习的呢

sevenmiles

拜求寂静

chenr523

阅读是否是这篇文章：

Dodder is a wiry, orange vine that steals water and nutrients from other plants. Scientists have now found that this vine chooses its victim by smell, growing its shoots in the direction of a plant's natural perfume. A seedling of a vine known as dodder attaches to a tomato plant.

When a dodder seed sprouts, it doesn't grow roots to seek its own food. Instead, it grows a shoot that reaches out to other plants, tapping them for food. The baby vine needs to find a host within a week to survive. It then grows into a spaghetti tangle that can even ensnare more than one plant.

Also known as strangleweed and witches' shoelaces, dodders are listed among the 10 worst weeds in the United States. They can cost farmers millions of dollars by stunting their crops.

To figure out how a type of dodder vine known to prefer tomato plants finds a victim, scientists placed dodder sprouts near several possible targets. These targets included pots of moist soil, little jars of dyed water that created colored lights, young tomato plants, and even a cup of perfume made from chemicals that tomato plants give off.

Seedlings grew toward the tomato plant. They also reached out toward the cup of tomato perfume. They tended not to grow toward the moist soil or colored water.



The scientists then used a different setup, hiding the targets in chambers connected to dodder sprouts only by curving pipes, so the vine could find them only by smell. Dodder sprouts still grew toward their favored targets.

By placing dodder sprouts near different plants, the scientists found that the type of dodder that they were studying prefers tomatoes and a flower called impatiens. And when given a choice between tomato and wheat, vine seedlings grow toward tomato.

The researchers then tested seven of the ingredients that make up tomato perfume separately. Dodder sprouts were attracted to three of them.

One of these ingredients turns up in wheat perfume, but the wheat perfume also contains a substance that repels dodder sprouts. This chemical could offer farmers one way to fight the vine and save their crops.—C. Gramling

-- by 会员 sevenmiles (2011/7/5 15:15:30)

不是一模一样的 但是内容很类似了已经 那篇中间有做实验的部分  
对了！最后还说到能为防治dodder提供新思路 因为wheat perfume里面有种compel dodder的东西

chenr523

[quote]

楼主我也是今天考的，我的数学考了49，语文只考了24，你语文一般性是怎么复习的呢

-- by 会员 cherise1276 (2011/7/5 15:21:17)

[/quote


怎么复习真没啥经验 就做题吧   语法错的特别多一般都。。。。7道prep总要错三道这样。。做多了就容易错一半。。。。
还是要多看文章吧 输入真的很重要！逻辑看懂了基本就不会错啊  以前英语基础还不错都是初高中疯狂做阅读赚来的  人越大越懒散。。。哎。。
一起努力吧TAT

Heather_Lau

感觉女性工作的那一篇阅读是OG上的呢？

sevenmiles

One of these ingredients turns up in wheat perfume, but the wheat perfume also contains a substance that repels dodder sprouts. This chemical could offer farmers one way to fight the vine and save their crops

那和这里的意思很接近嘛，多谢

hiedyyin

谢楼主！！