Step 1:词汇温习 bite 叮,咬 mosquito-borne disease 由蚊子传播的疾病 mosquito repellent 驱蚊剂 tropical medicine 热带医学 insect 昆虫 skin 皮肤 insecticide 杀虫剂 attack 攻击 attract 吸引 sweat 出汗,流汗 victim 牺牲品 land on 落在,停在 Step 2: 原文精听+精读 Summer is a great time of year –...
4. False. Mosquitos only make up a small proportion of the insects killed by zappers, and many of the others are beneficial. 5. The article says that it is best to wear light colours to avoid mosquito bites. 2. 选择意思恰...
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Summer is a great time of year – but, unfortunately, it's not just us humans that enjoy it. Mosquitos seem to make the most out of the season by biting us, and as well as being annoying, mosquito-borne diseases can be dangerous. What can we do to avoid getting bitten? The most o...
2.选择意思恰当的单词或词组来完成下列句子。 1. Mosquito-bornediseases can be dangerous. 2. Electric bugzappersare not always effective. 3. Puttingrepellenton your skin can stop bites. 4. Mosquitos can bitethroughtight clothing. 5.Insecticidekills mosquitos....
2.选择意思恰当的单词或词组来完成下列句子。 1. Mosquito-bornediseases can be dangerous. 2. Electric bugzappersare not always effective. 3. Puttingrepellenton your skin can stop bites. 4. Mosquitos can bitethroughtight clothing. 5.Insecticidekills mosquitos....
Finally, keep in mind that while various forms of insecticide-treatedclothingwill help reduce the number of mosquito bites, they won't provide a halo of bite-freeprotectionaround your whole body. Remember to apply a topical insect repellent to exposed areas of skin, such as hands and face, ...
There's one animal that ruins summer evenings: the mosquito. While mosquitoes don't carry any diseases in the U.K., their itchy bites are far from fun.
Thoughfirst synthesized in 1874, DDT (dichloro-diphenyl-trichloroethane)was not used as an insecticideuntil 1939, when Paul Hermann Müller discovered its effectiveness at killing pests. He wasawarded the Nobel Prize in Medicine in 1948for his discovery, and DDT was widely used through the 1960s....
The drugs also were effective against insect strains that are resistant to common insecticides. Based on existing data from studies of the drugs in animals, the researchers estimated that a single human dose of the drugs would convey an insecticide effect against mosquitos and sand f...