module 1 PRESENT SIMPLE AFFIRMATIVE FORM INTERROGATIVE FORM I work I (do not) don t work Do I work You work You (do not) don t work Do you work He/she/it works GRAMMAR NEGATIVE FORM here He/she/it (does not) doesn t work here Does he/she/it work We work We (do not) don t work Do we work You work You (do not) don t work Do you work They work They (do not) don t work Do they work here? Remember that in the affirmative form the 3rd person singular adds s to the base form. However, if the base form of the verb ends with ch, o, s, sh, x, z, the ending -es is added (wish wishes) y preceded by a consonant, y changes into i + es (study studies) BUT if y is preceded by a vowel, only the ending s is added (play plays). Put the verbs in the correct form. a. .......................... (nuclear power / cause) environmental damage? b. Mechanical engineers .......................... (select) and .......................... (operate) machine tools appropriate for specific needs. c. Hydroelectric power plants .......................... (not pollute) the air. d. .......................... (the fission process / release) heat? e. The flying shuttle is a device which .......................... (move) back and forth on wheels. f. Steam engines .......................... (not rely) on water sources to operate machinery. g. In hydropower plants, water .......................... (rotate) turbines which .......................... (drive) generators that .......................... (produce) electricity. h. How .......................... (solar collectors / work)? i. What social changes .......................... (industrialization / bring about)? j. Limited financial resources .......................... (not favour) industrial growth. k. What .......................... (a thermoelectrical power plant / release)? l. The first factories .......................... (employ) the spinning jenny. m. Queen Victoria .......................... (open) museums, railway stations and exhibitions. n. Sometimes the wind .......................... (be) intermittent and .......................... (not blow) when mechanical power or electricity are needed. o. What .......................... (solar concentrators / use) to convert the sun s energy into high-temperature heat and .......................... (produce) electricity? p. Why .......................... (Britain / undergo) a phase of economic decline after the second Industrial Revolution? 34