①Interval Growth Rate Calculation
In 2018, China's total social electricity consumption was 6,844.9 billion kWh, an increase of 8.5% year-on-year, an increase of 1.9 percentage points year-on-year. Specifically, the primary industry used 72.8 billion kWh of electricity, an increase of 9.8% year-on-year; the secondary industry used 4,723.5 billion kWh, an increase of 7.2% year-on-year; the tertiary industry used 1,080.1 billion kWh, an increase of 12.7% year-on-year; and urban and rural residents lived on 968.5 billion kWh, an increase of 10.4% year-on-year.In 2018, China's renewable energy power generation amounted to 1.87 trillion kWh, an increase of about 170 billion kWh year-on-year; renewable energy power generation accounted for 26.7% of the total annual power generation, an increase of 0.2 percentage points year-on-year.
Example 1 (2019 Guangdong) In 2018, China's total social electricity consumption increased by about ( ) compared with 2016.
A.13.7%
B.15.7%
C.17.9%
D.19.9%
Answer B
Example 2 (2019 Shandong) Although the growth rate of the number of beds in the nation's healthcare facilities continued to decline between 2014 and 2016, the The number of beds in 2016 still increased by:
A.12.26%
B.10.87%
C.13.21%
D.9.69%
Answer A
②Interval Base Volume Calculation
China's import and export of aquatic products in the first quarter of 2018 1,926,700 tons, a year-on-year decrease of 7.27%, the growth rate of 21.97 percentage points less than the same period last year; the total import and export amounted to 7.715 billion U.S. dollars, a year-on-year increase of 10.84%. Trade surplus of 1.966 billion U.S. dollars, a year-on-year decrease of 215 million U.S. dollars. On the export side, in the first quarter of 2018, China's aquatic products exported 980,400 tons, a year-on-year decrease of 2.7%, and the export value of 4.841 billion U.S. dollars, an increase of 5.90%. General trade export volume of 711,800 tons, a year-on-year decrease of 4.06%; export value of 3.671 billion U.S. dollars, an increase of 6.22%.
Example 3 (2019 Gansu) In the first quarter of 2016, China's total import and export volume of aquatic products was closest to which of the following figures?
A.1.4 million tons
B.1.6 million tons
C.1.8 million tons
D.2 million tons
Answer C
Analyse
In the first step, the question examines the calculation of the interval base period volume.
The second step, locate the first paragraph of the text material, "in the first quarter of 2018, China's import and export of aquatic products 1,926,700 tons, a year-on-year decrease of 7.27%, the growth rate of the same period of the previous year decreased by 21.97 percentage points".
③Interval multiplier calculation
In the first half of 2017, enterprises above designated size in the pharmaceutical industry realized main business income of 153.1440 billion yuan, an increase of 12.39% year-on-year, with a growth rate of 2.25 percentage points higher than the same period of the previous year. Among the sub-industries, the fastest-growing is the processing of traditional Chinese medicine tablets, and the growth rate of chemical drug preparations, proprietary Chinese medicines and pharmaceutical equipment is lower than the industry average.
Example 4 (2017 Xinjiang) In terms of the main business income realized by enterprises above the scale of the pharmaceutical industry, the first half of 2017 was about:
A.1.13 times
B.0.13 times
C.1.24 times
D.0.24 times
Answer C
Analysis
In the first step, this question is about interval multiplier calculations.
The second step, locate the text material "in the first half of 2017, the pharmaceutical industry enterprises above designated size realized main business income of 153.1440 billion yuan, an increase of 12.39% year-on-year, the growth rate of the same period of the previous year increased by 2.25 percentage points".
④Calculation of the amount of interval growth
Example 5 (2019 Liaoning) The number of newly registered market entities in 2018 increased by about () million compared with 2016.
A.16
B.18
C.20
D.22
Answer B
Answer
In the first step, the question examines the calculation of interval growth.
In the second step, locate the table, 661,000 new market entities were registered in 2018, up 5.1% year-on-year, with a growth rate of -25.5 percentage points year-on-year.
Example 6The total profit from main business of industries above designated size increased by about () billion yuan in 2018 compared with 2016.
A.471
B.535
C.703
D.928
Answer D
Analysis
In the first step, the question examines the calculation of interval growth.
In the second step, locate the table material, "Industrial main business profit in 2018 was 146.04 billion yuan, an increase of 41.8% year-on-year, and the growth rate was 51.9 percentage points lower than that of last year."
So, choose option D.