Hazy weather in Shijiazhuang

(1) Photosynthesis is a kind of green plant, which uses light energy to synthesize carbon dioxide and water into organic matter that stores energy and releases oxygen. The raw materials of photosynthesis are carbon dioxide and water, the condition is light, the place is chloroplast, and the products are organic matter and oxygen. In order to carry out photosynthesis normally, two important conditions must be light and chloroplast. Therefore, smog weather will reduce the intensity of sunlight and directly affect the photosynthesis of plants. In the ecosystem, the relationship between producers and consumers is mainly the relationship between eating and being eaten, thus forming a food chain. "People, herbivores, plants and carnivores" are arranged into a complete food chain: plants → herbivores → carnivores → people;

(2) The sources of suspended particulate matter in the air, such as automobile exhaust, coal burning, waste gas discharged from industrial production, etc. , seriously affecting air quality, thus endangering human health. Suspended particles will enter the respiratory system with breathing, causing respiratory diseases. The respiratory system includes the respiratory tract and lungs. The respiratory tract consists of nasal cavity, pharynx, larynx, trachea and bronchus from top to bottom. The outside air enters the lungs and passes through nasal cavity, pharynx, larynx, trachea and bronchus in turn. Finally, PM2.5 enters the lungs. Because PM 2.5 particles are tiny and difficult to be blocked by organs such as nose, they can directly enter bronchi and alveoli, affecting the gas exchange in the lungs, and can be quickly absorbed by capillaries outside alveoli and distributed throughout the body through blood circulation.

(3) The route of blood circulation is as shown in the figure: Therefore, when penicillin is injected intravenously on the back of the hand, the route for the drug to reach the lung is: superior vena cava → right atrium → right ventricle → pulmonary vein → lung.

So the answer is:

(1) photosynthesis, ecology, plants → herbivores → carnivores → humans;

(2) pharynx, larynx and trachea;

(3)①⑥⑤⑦⑩.