The rapid development of information technology has brought society into the Internet + era. To break the current teaching dilemma, English teaching in colleges and universities needs to keep pace with the times. Based on the characteristics of the Internet + era, we need to strengthen the awareness of the Internet + era and reconstruct the resource advantages and technological advantages of the Internet + era. The English teaching mode in colleges and universities rejuvenates college English teaching, establishes a mode suitable for English teaching in the new era, and comprehensively improves the effectiveness of college English teaching. This research optimizes the teaching design under the guidance of the Internet and information technology and the concept of curriculum integration and applies it to the teaching practice of a college English listening and speaking course. Design-based research is used as the main research method. Under the guidance of the concept of information technology and curriculum integration, first of all, we measure and evaluate the TPACK level informatization teaching ability of English teachers in colleges and universities. Secondly, we design and optimize the whole process of teaching, especially the design and adjustment of teaching procedures. Finally, the research conclusions are obtained through statistical analysis of the data. It is found that the teaching optimization design under the guidance of the concept of information technology and curriculum integration can improve the English listening and speaking ability of college students to a certain extent.

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In this paper, the effects of different substitution rates and basalt fiber (BF) contents on the deformation properties of recycled aggregate concrete (RAC) are studied, and the correlation degree of the changing parameters on the deformation properties of basalt fiber reinforced recycled aggregate concrete (BFRAC) is evaluated by gray correlation analysis. A total of 48 cylindrical test blocks are designed in this experiment, the failure modes of the test blocks are observed and analyzed, and performance indicators such as stress–strain curve, peak strain, and elastic modulus are obtained. The results show that the test block mainly suffers longitudinal splitting failure under uniaxial compression. The longitudinal cracks become denser and narrower with the increase in BF content. With the increase in BF content, the stress–strain curve decreases gradually, and the peak strain in the fully recycled aggregate concrete increases. There is no obvious change rule toward the peak strain with the increase in the substitution rate. The peak strain and elastic modulus of most test blocks show a trend of first decreasing and then increasing. At each substitution rate, when the BF dosage is 6 kg/m3, the elastic modulus of the test block is the minimum. Based on gray correlation analysis, the substitution rate has a greater impact on the deformation performance of BFRAC than fiber content. Therefore, an appropriate substitution rate has a better effect on improving the stiffness of test blocks and reducing the deflection of bending members.