Level A

Weekly exercise L68_2
















Ecrivez les chiffres correspondant aux groupes verbaux noyaux de proposition

Dans les phrases proposées, relevez le ou les groupes verbaux noyaux de proposition et faites le(s) suivre des chiffres correspondant aux éléments qui le(s) composent.

Adapted from VOA April 27, 2018 5:30 AM

"EU Moves(1+7) to Further Ban Bee-Killing Pesticides"

European Union countries backed(2+7) a proposal Friday to extend a partial ban on the use of insecticides known as neonicotinoids that studies have shown(1+4+7) are(1+7) harmful to bees.

The full outdoor ban will be(1+3+7) on the use of three active substances: imidacloprid, developed by Bayer CropScience; clothianidin, developed by Takeda Chemical Industries and Bayer CropScience; as well as Syngenta’s thiamethoxam.

All outdoor uses will be banned(1+3+6+7) and the neonicotinoids in question will only be allowed(1+3+6+7) in permanent greenhouses where exposure of bees is not expected(1+6+7),” the European Commission said(2+7) in a statement.

Adapted from VOA April 27, 2018 5:30 AM

Bees gather(1+7) on their hive in Paris, September 24, 2010.

For about a decade, scientists have been investigating(1+4+5+7) a class of pesticides called neonicotinoids as one of the culprits behind the worldwide loss of domesticated honeybees. Now, a pair of new studies has(1+7) people on both sides claiming victory.

Neonicotinoids, or neonics, were developed(2+6+7) in the 1980s and '90s and became(2+7) one of the most widely used insecticides. Recently, however, there has been(1+4+7) concern about its effect on honeybees. Roughly one-third of the world's crops benefit (1+7)from pollinators like honeybees.

Studies in the lab have shown(1+4+7) inconsistent effects of neonics on bees. Amro Zayed, a biologist at York University in Toronto, says(1+7) that could be(2+3+7) because bees aren't exposed(1+6+7) to the same levels of neonics across studies.

"People criticize(1+7) these experimental studies by saying that the authors used(2+7) too much neonicotinoids or they treated(2+7) bees to neonicotinoids for a much longer period of time than would be found(2+3+6+7) in the field," Zayed said(2+7).

Zayed tried(2+7) to address that question in the first of the two studies published in the journal Science. It focused(2+7) on how much of the pesticide bees were exposed(2+6+7) to in the fields. In Canada, neonics are coated(1+6+7) onto corn and soy seeds and spread(1+6+7)("are" est sous entendu) throughout the plant as it grows(1+7). The bees pick(1+7) it up in the pollen.