1, PLA uncle shot down 5 enemy planes and 3 warships.

The PLA uncle shot down five enemy planes. /Uncle PLA shot down 5 enemy planes and destroyed 3 warships.

2. Pride and complacency are obstacles to learning.

Change: complacency is an obstacle to learning.

These are the cultural relics unearthed in Tang Dynasty.

These are the cultural relics of the Tang Dynasty.

After watching this TV series, everyone was deeply impressed.

Change: Everyone watched this TV series and was deeply impressed.

5.90 pieces of "Olympic Strike" with special numbers ended online bidding in Beijing, with a total price of12,836,500 yuan, and each piece was sold.

The average price of the attack exceeded 6.5438+0.4 million yuan.

Analysis: the average price of each sum and the average price are meaningful, because the average price is for each.

The price is the same as "every" and "all", and only the "average price" is reserved.

6, plant nutrition is to study how to increase crop yield and improve the quality of agricultural products through measures such as fertilization, so plants

Nutrition is very important not only for food quality and safety, but also for food quantity safety.

Analysis: Misuse of related words, logically speaking, "so" means causality.

7. Whether the school can form a good campus culture and whether learners can really adapt to and integrate into the campus culture is of great significance to teaching.

The effective development of learning activities plays an important role.

Analysis: "Whether" refers to two aspects of things, so the corresponding conclusion should also be two aspects, and "effective development" is only

Show a positive side, and the front and back are obviously not corresponding.