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安徽省六安市一中2021-2022学年高二上学期期末试题 (英语)
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A

There are many common household items that are non-toxic(无毒的)and that work well for killing weeds.

Boiling water

It is especially good for sidewalks, driveways, or yards. You can boil the water to 100 degree in a container, which is better, as it makes it easier and safer to pour, as well as gives your weed-killing a bit more accuracy.

Fire

Using a kitchen burner or flame-weeder tool to apply heat directly to the leaves and roots of the weed is a fine way of getting rid of them, but be careful not to bum the entire neighborhood down. Anywhere there is dried material you should use fire with extra care.

Vinegar(醋)

White vinegar is perfectly fine for weed killing, especially when a pump or two of dish soap are added into the spray(喷洒)bottle. Spray it directly on the leaves of the disliked plant and be careful not to over-spray. Consider waiting until any strong wind has wound down as a bit of wind can carry the chemicals onto other plants you'd like to keep. Also try to avoid dropping vinegar into the soil, as it will make it harder for anything to grow there.

Salt

Salt is a great weed-killer and can be added to vinegar or hot water sprays, but when it goes into the earth nothing can grow. Add a little dish soap to help the salt stick to the leaves and be careful where you aim. Spraying the soil will damage it, while hitting other plants you like may kill them too.

1. Which item can kill weeds precisely?

A. Fire.                              B. Salt.                               C. Vinegar.                         D. Boiling water.

2. Why should we spray a little vinegar directly on leaves?

A. To avoid chemicals.                                                 B. Vinegar has poison.

C. Vinegar is too sticky.                                                D. To protect your other plants.

3. Where can this text come from?

A. A technology magazine.                                            B. A gardening magazine.

C. A cooking magazine.                                                D. An encyclopedia.

【答案】1. D2. D3. B

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