Unit 9 Optimism and Pessimism
（ ）2. we will have a party this weekend. will you _________us? a. take part in b. join c. attend 解析：選b。join 通常只參加某組織或團(tuán)體；attend是正式用語，只參加會(huì)議或儀式等；take part in 是參加活動(dòng)。 （ ）3. i’ve won a holiday for two weeks to florida. i _________my mom. a. am taking b. have taken c. will have taken 解析：選a。本題中i am taking my mom 是進(jìn)行時(shí)表示將來。 （ ）4. careless driving __________a lot of highway accidents. a. affects b. causes c. results 解析：選b。cause 是“導(dǎo)致、引起”的意思，與accident 搭配。occur： v. 發(fā)生 vi. 出現(xiàn)，存在，發(fā)生