rubber. Rubber is very cheap. Farmers can’t make enough money by selling it. They don&rsquo...糟糕，天然橡胶就快不够用了糟糕，天然橡胶就快不够用了  Look around you. Can you find anything made of rubber (橡胶 ……

rubber. The tyres of cars, motorbikes and trucks are also often made of the same stuff. Natural rubber... latex (乳胶). In the 19th and early 20th centuries, huge numbers of rubber trees were planted ……

Task 1Which of the following are made from rubber?Natural rubber: it’s all in the genesNext time...’t explode is because they are made of natural rubber. The tires of cars, motorbikes and trucks are also ……

Rubber bands last longer when refrigerated. ……

Rubber lasts longer after it stays in the fridge for a while. ……

沙子有一种神奇的“超能力”。A box of sand is strong enough to stop a bullet (子弹). How is it so strong?You’ll need• Paper towel tube 20 cm squares of tissue paper (纸巾)• Dry sand• Rubber bands Thin ……

沙子有一种神奇的“超能力”。A box of sand is strong enough to stop a bullet (子弹). How is it so strong?You’ll need• Paper towel tube 20 cm squares of tissue paper (纸巾)• Dry sand• Rubber bands Thin ……

This is the largest rubber duck in the world. It is in France. It's 25 meters tall. ……

的) rubber, softeners, sweeteners and flavorings. Its stickiness (粘性) comes from synthetic rubber, which... of chewing gum, they have to change the chemical structure of the rubber. However, if the rubber ……

沙袋为什么能阻挡子弹？沙袋为什么能阻挡子弹？ SOURCE: TNS]  . ……

’ll need•  20 cm squares of  tissue paper•  Dry sand•  Rubber...;tissue paper•  Dry sand•  Rubber bands (橡皮筋)•  Thin stick about 30 cm ……

rubber (天然橡胶). Its color is off-white (灰白色). Later, people added carbon black (炭黑), a kind of dark... enough to last for a long time. TEENS ……

大红狗春季大扫除
it anymore.5. Clifford cleans the windows all by himself. First he washes them. Then hedriesthem... and rubber toys. 8. Now both our houses areneatand clean. Clifford and I are both very happy.练一 ……

手指跳皮筋What you need: One rubber band (皮筋)How to play:1 Wrap (缠绕) the rubber band around your left first finger and middle finger.2 Close your left hand into a fist.3 Open your fist. The rubber band ……

How to doPut a rubber band round your first finger and the middle finger of your right hand.Pull4 the rubber band with your left hand. Show it to the audience (观众). Then say "The rubber band ……