举一反三
- The plant community ________ in a certain area becomes a food source for a community of animals _______ that area. A: A. growing, attracting B: B. grown, attracted C: C. growing, attracted D: D. grown, attracting
- What are the major crops produced in Australia? A: sugar cane B: cotton C: wheat D: rice
- What are the three major cash crops in Southern colonies? A: cotton, rice, tobacco B: tobacco, rice, indigo C: tobacco, cotton, indigo D: cotton, wheat, rice
- mini-talk 2 A: Organic farming can reduce soil erosion. B: Organic crops produce lower yields. C: Organically grown food tastes strange. D: Organic farming is better for the environment.
- There are ________ on the floor. A: four bags of rice B: four bag of rice C: four bags rice D: four bag rice
内容
- 0
Although Australia is a major agricultural producer and exporter, only about 6% of Australian land is suitable for crops and pasture.
- 1
Golden rice is a variety of rice produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of rice. It is intended to produce a food to be grown and consumed in areas with a shortage of dietary vitamin A.（）
- 2
Which of the following would probably be the best kind of visual aid to summarize the major types of agricultural crops grown in China? A: A model. B: A chart. C: A drawing. D: A map.
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Rice is grown in the north of eastern China.
- 4
If nuclear bombs are dropped on an area the survivors will ______. A: hide in their houses B: store more food C: be very sick D: grow more crops