题目内容
You may use the room as you like,______ you clean it up afterwards.
A.as though B.so long as C.now that D.as far as
A
【解析】
试题分析:考查固定词组,A. as though好像;B. so long as只要;C. now that既然;D. as far as只要,句子意思“你可以随便使用这个房间,用完后你要打扫干净”
考点:考查固定词组
点评:本题考查了as组成的动词短语的辨析,英语中有的词组是相同的词搭配不同的副词或介词构成的。含义不一样,注意区分
即学即练:It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.
A. slide into B. turn into C. put into D. draft into
选A 句意:染上抽烟喝酒的坏习惯可能很容易,但戒掉不容易
Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear.__1.__. We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.
Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.
Both systems use the freezing and boiling points of water as their guide.__2.__.
The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid ) becomes hot, it expands. As it gets colder, it contracts(收缩). That is why on hot days the mercury line is high in the glass tube.__3.__.
First. Take a clear glass juice bottle that has a cap ; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole.____4.____.
Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily. ____5.____.
As the temperature goes down, the water will contract, and the lever in the straw will come down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week.
A.People use thermometers which are made by themselves when travelling around the world. |
B.We use and depend on thermometers to measure the temperature of many other things in our daily lives. |
C.Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled. |
D.Now that you know this rule you can make a thermometer of your own that will work. |
E.The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher.
F.They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees.
G.Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal(把..粘住) them together.